mirror of
https://github.com/gnss-sdr/gnss-sdr
synced 2024-07-05 11:23:14 +00:00
Merge branch 'next' into trk_hi_dyn
This commit is contained in:
Antonio Ramos
commit
1f1d5491b3
|
|
@ -523,7 +523,6 @@ if(NOT GNURADIO_RUNTIME_FOUND)
|
|||
message("You can install it easily via Macports:")
|
||||
message(" sudo port install gnuradio ")
|
||||
message("Alternatively, you can use homebrew:")
|
||||
message(" brew tap odrisci/gnuradio")
|
||||
message(" brew install gnuradio" )
|
||||
message(FATAL_ERROR "GNU Radio ${GNSSSDR_GNURADIO_MIN_VERSION} or later is required to build gnss-sdr")
|
||||
endif(OS_IS_MACOSX)
|
||||
|
|
|
|||
10
MANIFEST.md
10
MANIFEST.md
|
|
@ -12,11 +12,17 @@ author:
|
|||
- et altri (see AUTHORS file for a list of contributors)
|
||||
copyright_owner:
|
||||
- The Authors
|
||||
dependencies: gnuradio (>= 3.7.3), armadillo, gflags, glog, gnutls, matio
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||||
dependencies:
|
||||
- gnuradio (>= 3.7.3)
|
||||
- armadillo
|
||||
- gflags
|
||||
- glog
|
||||
- gnutls
|
||||
- matio
|
||||
license: GPLv3+
|
||||
repo: https://github.com/gnss-sdr/gnss-sdr
|
||||
website: https://gnss-sdr.org
|
||||
icon: https://raw.githubusercontent.com/gnss-sdr/gnss-sdr/master/docs/doxygen/images/gnss-sdr_logo.png
|
||||
icon: https://gnss-sdr.org/assets/images/logo400x400.jpg
|
||||
---
|
||||
Global Navigation Satellite Systems receiver defined by software. It performs all the signal
|
||||
processing from raw signal samples up to the computation of the Position-Velocity-Time solution,
|
||||
|
|
|
|||
|
|
@ -71,7 +71,6 @@
|
|||
#define socket_t int
|
||||
#define closesocket close
|
||||
#define lock_t pthread_mutex_t
|
||||
#define thread_t pthread_t
|
||||
#define initlock(f) pthread_mutex_init(f, NULL)
|
||||
#define rtk_lock(f) pthread_mutex_lock(f)
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||||
#define rtk_unlock(f) pthread_mutex_unlock(f)
|
||||
|
|
@ -1211,7 +1210,7 @@ typedef struct
|
|||
char local[1024]; /* local file path */
|
||||
int topts[4]; /* time options {poff,tint,toff,tretry} (s) */
|
||||
gtime_t tnext; /* next retry time (gpst) */
|
||||
thread_t thread; /* download thread */
|
||||
pthread_t thread; /* download thread */
|
||||
} ftp_t;
|
||||
|
||||
|
||||
|
|
@ -1284,7 +1283,7 @@ typedef struct
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|||
stream_t stream[8]; /* streams {rov,base,corr,sol1,sol2,logr,logb,logc} */
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||||
stream_t *moni; /* monitor stream */
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||||
unsigned int tick; /* start tick */
|
||||
thread_t thread; /* server thread */
|
||||
pthread_t thread; /* server thread */
|
||||
int cputime; /* CPU time (ms) for a processing cycle */
|
||||
int prcout; /* missing observation data count */
|
||||
lock_t lock; /* lock flag */
|
||||
|
|
|
|||
|
|
@ -89,38 +89,6 @@ double leaps[MAXLEAPS + 1][7] = {/* leap seconds (y,m,d,h,m,s,utc-gpst) */
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{}};
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||||
|
||||
|
||||
const prcopt_t prcopt_default = { /* defaults processing options */
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||||
PMODE_SINGLE, 0, 2, SYS_GPS, /* mode, soltype, nf, navsys */
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15.0 * D2R, {{}, {{}, {}}}, /* elmin, snrmask */
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||||
0, 1, 1, 1, /* sateph, modear, glomodear, bdsmodear */
|
||||
5, 0, 10, 1, /* maxout, minlock, minfix, armaxiter */
|
||||
0, 0, 0, 0, /* estion, esttrop, dynamics, tidecorr */
|
||||
1, 0, 0, 0, 0, /* niter, codesmooth, intpref, sbascorr, sbassatsel */
|
||||
0, 0, /* rovpos, refpos */
|
||||
{100.0, 100.0, 100.0}, /* eratio[] */
|
||||
{100.0, 0.003, 0.003, 0.0, 1.0}, /* err[] */
|
||||
{30.0, 0.03, 0.3}, /* std[] */
|
||||
{1e-4, 1e-3, 1e-4, 1e-1, 1e-2, 0.0}, /* prn[] */
|
||||
5E-12, /* sclkstab */
|
||||
{3.0, 0.9999, 0.25, 0.1, 0.05, 0, 0, 0}, /* thresar */
|
||||
0.0, 0.0, 0.05, /* elmaskar, almaskhold, thresslip */
|
||||
30.0, 30.0, 30.0, /* maxtdif, maxinno, maxgdop */
|
||||
{}, {}, {}, /* baseline, ru, rb */
|
||||
{"", ""}, /* anttype */
|
||||
{}, {}, {}, /* antdel, pcv, exsats */
|
||||
0, 0, 0, {"", ""}, {}, 0, {{}, {}}, {{}, {{}, {}}, {{}, {}}, {}, {}}, 0, {}};
|
||||
|
||||
|
||||
const solopt_t solopt_default = {
|
||||
/* defaults solution output options */
|
||||
SOLF_LLH, TIMES_GPST, 1, 3, /* posf, times, timef, timeu */
|
||||
0, 1, 0, 0, 0, 0, /* degf, outhead, outopt, datum, height, geoid */
|
||||
0, 0, 0, /* solstatic, sstat, trace */
|
||||
{0.0, 0.0}, /* nmeaintv */
|
||||
" ", "", 0 /* separator/program name */
|
||||
};
|
||||
|
||||
|
||||
const char *formatstrs[32] = {/* stream format strings */
|
||||
"RTCM 2", /* 0 */
|
||||
"RTCM 3", /* 1 */
|
||||
|
|
|
|||
|
|
@ -1,6 +1,6 @@
|
|||
/*!
|
||||
* \file volk_gnsssdr_32f_fast_resamplerxnpuppet_32f.h
|
||||
* \brief VOLK_GNSSSDR puppet for the multiple 32-bit float vector fast resampler kernel.
|
||||
* \file volk_gnsssdr_32f_high_dynamics_resamplerxnpuppet_32f.h
|
||||
* \brief VOLK_GNSSSDR puppet for the multiple 32-bit float vector high dynamics resampler kernel.
|
||||
* \authors <ul>
|
||||
* <li> Cillian O'Driscoll 2017 cillian.odriscoll at gmail dot com
|
||||
* <li> Javier Arribas, 2018. javiarribas(at)gmail.com
|
||||
|
|
@ -33,10 +33,10 @@
|
|||
* -------------------------------------------------------------------------
|
||||
*/
|
||||
|
||||
#ifndef INCLUDED_volk_gnsssdr_32f_fast_resamplerxnpuppet_32f_H
|
||||
#define INCLUDED_volk_gnsssdr_32f_fast_resamplerxnpuppet_32f_H
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#ifndef INCLUDED_volk_gnsssdr_32f_high_dynamics_resamplerxnpuppet_32f_H
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||||
#define INCLUDED_volk_gnsssdr_32f_high_dynamics_resamplerxnpuppet_32f_H
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|
||||
#include "volk_gnsssdr/volk_gnsssdr_32f_xn_fast_resampler_32f_xn.h"
|
||||
#include "volk_gnsssdr/volk_gnsssdr_32f_xn_high_dynamics_resampler_32f_xn.h"
|
||||
#include <volk_gnsssdr/volk_gnsssdr_malloc.h>
|
||||
#include <volk_gnsssdr/volk_gnsssdr_complex.h>
|
||||
#include <volk_gnsssdr/volk_gnsssdr.h>
|
||||
|
|
@ -44,7 +44,7 @@
|
|||
|
||||
|
||||
#ifdef LV_HAVE_GENERIC
|
||||
static inline void volk_gnsssdr_32f_fast_resamplerxnpuppet_32f_generic(float* result, const float* local_code, unsigned int num_points)
|
||||
static inline void volk_gnsssdr_32f_high_dynamics_resamplerxnpuppet_32f_generic(float* result, const float* local_code, unsigned int num_points)
|
||||
{
|
||||
int code_length_chips = 2046;
|
||||
float code_phase_step_chips = ((float)(code_length_chips) + 0.1) / ((float)num_points);
|
||||
|
|
@ -60,7 +60,7 @@ static inline void volk_gnsssdr_32f_fast_resamplerxnpuppet_32f_generic(float* re
|
|||
result_aux[n] = (float*)volk_gnsssdr_malloc(sizeof(float) * num_points, volk_gnsssdr_get_alignment());
|
||||
}
|
||||
|
||||
volk_gnsssdr_32f_xn_fast_resampler_32f_xn_generic(result_aux, local_code, rem_code_phase_chips, code_phase_step_chips, code_phase_rate_step_chips, shifts_chips, code_length_chips, num_out_vectors, num_points);
|
||||
volk_gnsssdr_32f_xn_high_dynamics_resampler_32f_xn_generic(result_aux, local_code, rem_code_phase_chips, code_phase_step_chips, code_phase_rate_step_chips, shifts_chips, code_length_chips, num_out_vectors, num_points);
|
||||
|
||||
memcpy((float*)result, (float*)result_aux[0], sizeof(float) * num_points);
|
||||
|
||||
|
|
@ -75,7 +75,7 @@ static inline void volk_gnsssdr_32f_fast_resamplerxnpuppet_32f_generic(float* re
|
|||
|
||||
|
||||
#ifdef LV_HAVE_SSE3
|
||||
static inline void volk_gnsssdr_32f_fast_resamplerxnpuppet_32f_a_sse3(float* result, const float* local_code, unsigned int num_points)
|
||||
static inline void volk_gnsssdr_32f_high_dynamics_resamplerxnpuppet_32f_a_sse3(float* result, const float* local_code, unsigned int num_points)
|
||||
{
|
||||
int code_length_chips = 2046;
|
||||
float code_phase_step_chips = ((float)(code_length_chips) + 0.1) / ((float)num_points);
|
||||
|
|
@ -91,7 +91,7 @@ static inline void volk_gnsssdr_32f_fast_resamplerxnpuppet_32f_a_sse3(float* res
|
|||
result_aux[n] = (float*)volk_gnsssdr_malloc(sizeof(float) * num_points, volk_gnsssdr_get_alignment());
|
||||
}
|
||||
|
||||
volk_gnsssdr_32f_xn_fast_resampler_32f_xn_a_sse3(result_aux, local_code, rem_code_phase_chips, code_phase_step_chips, code_phase_rate_step_chips, shifts_chips, code_length_chips, num_out_vectors, num_points);
|
||||
volk_gnsssdr_32f_xn_high_dynamics_resampler_32f_xn_a_sse3(result_aux, local_code, rem_code_phase_chips, code_phase_step_chips, code_phase_rate_step_chips, shifts_chips, code_length_chips, num_out_vectors, num_points);
|
||||
|
||||
memcpy((float*)result, (float*)result_aux[0], sizeof(float) * num_points);
|
||||
|
||||
|
|
@ -106,7 +106,7 @@ static inline void volk_gnsssdr_32f_fast_resamplerxnpuppet_32f_a_sse3(float* res
|
|||
|
||||
|
||||
#ifdef LV_HAVE_SSE3
|
||||
static inline void volk_gnsssdr_32f_fast_resamplerxnpuppet_32f_u_sse3(float* result, const float* local_code, unsigned int num_points)
|
||||
static inline void volk_gnsssdr_32f_high_dynamics_resamplerxnpuppet_32f_u_sse3(float* result, const float* local_code, unsigned int num_points)
|
||||
{
|
||||
int code_length_chips = 2046;
|
||||
float code_phase_step_chips = ((float)(code_length_chips) + 0.1) / ((float)num_points);
|
||||
|
|
@ -122,7 +122,7 @@ static inline void volk_gnsssdr_32f_fast_resamplerxnpuppet_32f_u_sse3(float* res
|
|||
result_aux[n] = (float*)volk_gnsssdr_malloc(sizeof(float) * num_points, volk_gnsssdr_get_alignment());
|
||||
}
|
||||
|
||||
volk_gnsssdr_32f_xn_fast_resampler_32f_xn_u_sse3(result_aux, local_code, rem_code_phase_chips, code_phase_step_chips, code_phase_rate_step_chips, shifts_chips, code_length_chips, num_out_vectors, num_points);
|
||||
volk_gnsssdr_32f_xn_high_dynamics_resampler_32f_xn_u_sse3(result_aux, local_code, rem_code_phase_chips, code_phase_step_chips, code_phase_rate_step_chips, shifts_chips, code_length_chips, num_out_vectors, num_points);
|
||||
|
||||
memcpy((float*)result, (float*)result_aux[0], sizeof(float) * num_points);
|
||||
|
||||
|
|
@ -137,7 +137,7 @@ static inline void volk_gnsssdr_32f_fast_resamplerxnpuppet_32f_u_sse3(float* res
|
|||
|
||||
|
||||
#ifdef LV_HAVE_SSE4_1
|
||||
static inline void volk_gnsssdr_32f_fast_resamplerxnpuppet_32f_u_sse4_1(float* result, const float* local_code, unsigned int num_points)
|
||||
static inline void volk_gnsssdr_32f_high_dynamics_resamplerxnpuppet_32f_u_sse4_1(float* result, const float* local_code, unsigned int num_points)
|
||||
{
|
||||
int code_length_chips = 2046;
|
||||
float code_phase_step_chips = ((float)(code_length_chips) + 0.1) / ((float)num_points);
|
||||
|
|
@ -153,7 +153,7 @@ static inline void volk_gnsssdr_32f_fast_resamplerxnpuppet_32f_u_sse4_1(float* r
|
|||
result_aux[n] = (float*)volk_gnsssdr_malloc(sizeof(float) * num_points, volk_gnsssdr_get_alignment());
|
||||
}
|
||||
|
||||
volk_gnsssdr_32f_xn_fast_resampler_32f_xn_u_sse4_1(result_aux, local_code, rem_code_phase_chips, code_phase_step_chips, code_phase_rate_step_chips, shifts_chips, code_length_chips, num_out_vectors, num_points);
|
||||
volk_gnsssdr_32f_xn_high_dynamics_resampler_32f_xn_u_sse4_1(result_aux, local_code, rem_code_phase_chips, code_phase_step_chips, code_phase_rate_step_chips, shifts_chips, code_length_chips, num_out_vectors, num_points);
|
||||
|
||||
memcpy((float*)result, (float*)result_aux[0], sizeof(float) * num_points);
|
||||
|
||||
|
|
@ -168,7 +168,7 @@ static inline void volk_gnsssdr_32f_fast_resamplerxnpuppet_32f_u_sse4_1(float* r
|
|||
|
||||
|
||||
#ifdef LV_HAVE_SSE4_1
|
||||
static inline void volk_gnsssdr_32f_fast_resamplerxnpuppet_32f_a_sse4_1(float* result, const float* local_code, unsigned int num_points)
|
||||
static inline void volk_gnsssdr_32f_high_dynamics_resamplerxnpuppet_32f_a_sse4_1(float* result, const float* local_code, unsigned int num_points)
|
||||
{
|
||||
int code_length_chips = 2046;
|
||||
float code_phase_step_chips = ((float)(code_length_chips) + 0.1) / ((float)num_points);
|
||||
|
|
@ -184,7 +184,7 @@ static inline void volk_gnsssdr_32f_fast_resamplerxnpuppet_32f_a_sse4_1(float* r
|
|||
result_aux[n] = (float*)volk_gnsssdr_malloc(sizeof(float) * num_points, volk_gnsssdr_get_alignment());
|
||||
}
|
||||
|
||||
volk_gnsssdr_32f_xn_fast_resampler_32f_xn_a_sse4_1(result_aux, local_code, rem_code_phase_chips, code_phase_step_chips, code_phase_rate_step_chips, shifts_chips, code_length_chips, num_out_vectors, num_points);
|
||||
volk_gnsssdr_32f_xn_high_dynamics_resampler_32f_xn_a_sse4_1(result_aux, local_code, rem_code_phase_chips, code_phase_step_chips, code_phase_rate_step_chips, shifts_chips, code_length_chips, num_out_vectors, num_points);
|
||||
|
||||
memcpy((float*)result, (float*)result_aux[0], sizeof(float) * num_points);
|
||||
|
||||
|
|
@ -199,7 +199,7 @@ static inline void volk_gnsssdr_32f_fast_resamplerxnpuppet_32f_a_sse4_1(float* r
|
|||
|
||||
|
||||
#ifdef LV_HAVE_AVX
|
||||
static inline void volk_gnsssdr_32f_fast_resamplerxnpuppet_32f_a_avx(float* result, const float* local_code, unsigned int num_points)
|
||||
static inline void volk_gnsssdr_32f_high_dynamics_resamplerxnpuppet_32f_a_avx(float* result, const float* local_code, unsigned int num_points)
|
||||
{
|
||||
int code_length_chips = 2046;
|
||||
float code_phase_step_chips = ((float)(code_length_chips) + 0.1) / ((float)num_points);
|
||||
|
|
@ -215,7 +215,7 @@ static inline void volk_gnsssdr_32f_fast_resamplerxnpuppet_32f_a_avx(float* resu
|
|||
result_aux[n] = (float*)volk_gnsssdr_malloc(sizeof(float) * num_points, volk_gnsssdr_get_alignment());
|
||||
}
|
||||
|
||||
volk_gnsssdr_32f_xn_fast_resampler_32f_xn_a_avx(result_aux, local_code, rem_code_phase_chips, code_phase_step_chips, code_phase_rate_step_chips, shifts_chips, code_length_chips, num_out_vectors, num_points);
|
||||
volk_gnsssdr_32f_xn_high_dynamics_resampler_32f_xn_a_avx(result_aux, local_code, rem_code_phase_chips, code_phase_step_chips, code_phase_rate_step_chips, shifts_chips, code_length_chips, num_out_vectors, num_points);
|
||||
|
||||
memcpy((float*)result, (float*)result_aux[0], sizeof(float) * num_points);
|
||||
|
||||
|
|
@ -229,7 +229,7 @@ static inline void volk_gnsssdr_32f_fast_resamplerxnpuppet_32f_a_avx(float* resu
|
|||
|
||||
|
||||
#ifdef LV_HAVE_AVX
|
||||
static inline void volk_gnsssdr_32f_fast_resamplerxnpuppet_32f_u_avx(float* result, const float* local_code, unsigned int num_points)
|
||||
static inline void volk_gnsssdr_32f_high_dynamics_resamplerxnpuppet_32f_u_avx(float* result, const float* local_code, unsigned int num_points)
|
||||
{
|
||||
int code_length_chips = 2046;
|
||||
float code_phase_step_chips = ((float)(code_length_chips) + 0.1) / ((float)num_points);
|
||||
|
|
@ -245,7 +245,7 @@ static inline void volk_gnsssdr_32f_fast_resamplerxnpuppet_32f_u_avx(float* resu
|
|||
result_aux[n] = (float*)volk_gnsssdr_malloc(sizeof(float) * num_points, volk_gnsssdr_get_alignment());
|
||||
}
|
||||
|
||||
volk_gnsssdr_32f_xn_fast_resampler_32f_xn_u_avx(result_aux, local_code, rem_code_phase_chips, code_phase_step_chips, code_phase_rate_step_chips, shifts_chips, code_length_chips, num_out_vectors, num_points);
|
||||
volk_gnsssdr_32f_xn_high_dynamics_resampler_32f_xn_u_avx(result_aux, local_code, rem_code_phase_chips, code_phase_step_chips, code_phase_rate_step_chips, shifts_chips, code_length_chips, num_out_vectors, num_points);
|
||||
|
||||
memcpy((float*)result, (float*)result_aux[0], sizeof(float) * num_points);
|
||||
|
||||
|
|
@ -285,4 +285,4 @@ static inline void volk_gnsssdr_32f_fast_resamplerxnpuppet_32f_u_avx(float* resu
|
|||
//}
|
||||
//#endif
|
||||
|
||||
#endif // INCLUDED_volk_gnsssdr_32f_fast_resamplerpuppet_32f_H
|
||||
#endif // INCLUDED_volk_gnsssdr_32f_high_dynamics_resamplerpuppet_32f_H
|
||||
|
|
@ -1,5 +1,5 @@
|
|||
/*!
|
||||
* \file volk_gnsssdr_32f_xn_fast_resampler_32f_xn.h
|
||||
* \file volk_gnsssdr_32f_xn_high_dynamics_resampler_32f_xn.h
|
||||
* \brief VOLK_GNSSSDR kernel: Resamples 1 complex 32-bit float vectors using zero hold resample algorithm
|
||||
* and produces the delayed replicas by copying and rotating the resulting resampled signal.
|
||||
* \authors <ul>
|
||||
|
|
@ -38,7 +38,7 @@
|
|||
*/
|
||||
|
||||
/*!
|
||||
* \page volk_gnsssdr_32f_xn_fast_resampler_32f_xn
|
||||
* \page volk_gnsssdr_32f_xn_high_dynamics_resampler_32f_xn
|
||||
*
|
||||
* \b Overview
|
||||
*
|
||||
|
|
@ -46,7 +46,7 @@
|
|||
*
|
||||
* <b>Dispatcher Prototype</b>
|
||||
* \code
|
||||
* void volk_gnsssdr_32f_xn_fast_resampler_32f_xn(float** result, const float* local_code, float rem_code_phase_chips, float code_phase_step_chips, float code_phase_rate_step_chips, float* shifts_chips, unsigned int code_length_chips, int num_out_vectors, unsigned int num_points)
|
||||
* void volk_gnsssdr_32f_xn_high_dynamics_resampler_32f_xn(float** result, const float* local_code, float rem_code_phase_chips, float code_phase_step_chips, float code_phase_rate_step_chips, float* shifts_chips, unsigned int code_length_chips, int num_out_vectors, unsigned int num_points)
|
||||
* \endcode
|
||||
*
|
||||
* \b Inputs
|
||||
|
|
@ -64,8 +64,8 @@
|
|||
*
|
||||
*/
|
||||
|
||||
#ifndef INCLUDED_volk_gnsssdr_32f_xn_fast_resampler_32f_xn_H
|
||||
#define INCLUDED_volk_gnsssdr_32f_xn_fast_resampler_32f_xn_H
|
||||
#ifndef INCLUDED_volk_gnsssdr_32f_xn_high_dynamics_resampler_32f_xn_H
|
||||
#define INCLUDED_volk_gnsssdr_32f_xn_high_dynamics_resampler_32f_xn_H
|
||||
|
||||
#include <assert.h>
|
||||
#include <math.h>
|
||||
|
|
@ -78,7 +78,7 @@
|
|||
|
||||
#ifdef LV_HAVE_GENERIC
|
||||
|
||||
static inline void volk_gnsssdr_32f_xn_fast_resampler_32f_xn_generic(float** result, const float* local_code, float rem_code_phase_chips, float code_phase_step_chips, float code_phase_rate_step_chips, float* shifts_chips, unsigned int code_length_chips, int num_out_vectors, unsigned int num_points)
|
||||
static inline void volk_gnsssdr_32f_xn_high_dynamics_resampler_32f_xn_generic(float** result, const float* local_code, float rem_code_phase_chips, float code_phase_step_chips, float code_phase_rate_step_chips, float* shifts_chips, unsigned int code_length_chips, int num_out_vectors, unsigned int num_points)
|
||||
{
|
||||
int local_code_chip_index;
|
||||
int current_correlator_tap;
|
||||
|
|
@ -109,7 +109,7 @@ static inline void volk_gnsssdr_32f_xn_fast_resampler_32f_xn_generic(float** res
|
|||
|
||||
#ifdef LV_HAVE_SSE3
|
||||
#include <pmmintrin.h>
|
||||
static inline void volk_gnsssdr_32f_xn_fast_resampler_32f_xn_a_sse3(float** result, const float* local_code, float rem_code_phase_chips, float code_phase_step_chips, float code_phase_rate_step_chips, float* shifts_chips, unsigned int code_length_chips, int num_out_vectors, unsigned int num_points)
|
||||
static inline void volk_gnsssdr_32f_xn_high_dynamics_resampler_32f_xn_a_sse3(float** result, const float* local_code, float rem_code_phase_chips, float code_phase_step_chips, float code_phase_rate_step_chips, float* shifts_chips, unsigned int code_length_chips, int num_out_vectors, unsigned int num_points)
|
||||
{
|
||||
float** _result = result;
|
||||
const unsigned int quarterPoints = num_points / 4;
|
||||
|
|
@ -194,7 +194,7 @@ static inline void volk_gnsssdr_32f_xn_fast_resampler_32f_xn_a_sse3(float** resu
|
|||
|
||||
#ifdef LV_HAVE_SSE3
|
||||
#include <pmmintrin.h>
|
||||
static inline void volk_gnsssdr_32f_xn_fast_resampler_32f_xn_u_sse3(float** result, const float* local_code, float rem_code_phase_chips, float code_phase_step_chips, float code_phase_rate_step_chips, float* shifts_chips, unsigned int code_length_chips, int num_out_vectors, unsigned int num_points)
|
||||
static inline void volk_gnsssdr_32f_xn_high_dynamics_resampler_32f_xn_u_sse3(float** result, const float* local_code, float rem_code_phase_chips, float code_phase_step_chips, float code_phase_rate_step_chips, float* shifts_chips, unsigned int code_length_chips, int num_out_vectors, unsigned int num_points)
|
||||
{
|
||||
float** _result = result;
|
||||
const unsigned int quarterPoints = num_points / 4;
|
||||
|
|
@ -280,7 +280,7 @@ static inline void volk_gnsssdr_32f_xn_fast_resampler_32f_xn_u_sse3(float** resu
|
|||
|
||||
#ifdef LV_HAVE_SSE4_1
|
||||
#include <smmintrin.h>
|
||||
static inline void volk_gnsssdr_32f_xn_fast_resampler_32f_xn_a_sse4_1(float** result, const float* local_code, float rem_code_phase_chips, float code_phase_step_chips, float code_phase_rate_step_chips, float* shifts_chips, unsigned int code_length_chips, int num_out_vectors, unsigned int num_points)
|
||||
static inline void volk_gnsssdr_32f_xn_high_dynamics_resampler_32f_xn_a_sse4_1(float** result, const float* local_code, float rem_code_phase_chips, float code_phase_step_chips, float code_phase_rate_step_chips, float* shifts_chips, unsigned int code_length_chips, int num_out_vectors, unsigned int num_points)
|
||||
{
|
||||
float** _result = result;
|
||||
const unsigned int quarterPoints = num_points / 4;
|
||||
|
|
@ -362,7 +362,7 @@ static inline void volk_gnsssdr_32f_xn_fast_resampler_32f_xn_a_sse4_1(float** re
|
|||
|
||||
#ifdef LV_HAVE_SSE4_1
|
||||
#include <smmintrin.h>
|
||||
static inline void volk_gnsssdr_32f_xn_fast_resampler_32f_xn_u_sse4_1(float** result, const float* local_code, float rem_code_phase_chips, float code_phase_step_chips, float code_phase_rate_step_chips, float* shifts_chips, unsigned int code_length_chips, int num_out_vectors, unsigned int num_points)
|
||||
static inline void volk_gnsssdr_32f_xn_high_dynamics_resampler_32f_xn_u_sse4_1(float** result, const float* local_code, float rem_code_phase_chips, float code_phase_step_chips, float code_phase_rate_step_chips, float* shifts_chips, unsigned int code_length_chips, int num_out_vectors, unsigned int num_points)
|
||||
{
|
||||
float** _result = result;
|
||||
const unsigned int quarterPoints = num_points / 4;
|
||||
|
|
@ -444,7 +444,7 @@ static inline void volk_gnsssdr_32f_xn_fast_resampler_32f_xn_u_sse4_1(float** re
|
|||
|
||||
#ifdef LV_HAVE_AVX
|
||||
#include <immintrin.h>
|
||||
static inline void volk_gnsssdr_32f_xn_fast_resampler_32f_xn_a_avx(float** result, const float* local_code, float rem_code_phase_chips, float code_phase_step_chips, float code_phase_rate_step_chips, float* shifts_chips, unsigned int code_length_chips, int num_out_vectors, unsigned int num_points)
|
||||
static inline void volk_gnsssdr_32f_xn_high_dynamics_resampler_32f_xn_a_avx(float** result, const float* local_code, float rem_code_phase_chips, float code_phase_step_chips, float code_phase_rate_step_chips, float* shifts_chips, unsigned int code_length_chips, int num_out_vectors, unsigned int num_points)
|
||||
{
|
||||
float** _result = result;
|
||||
const unsigned int avx_iters = num_points / 8;
|
||||
|
|
@ -532,7 +532,7 @@ static inline void volk_gnsssdr_32f_xn_fast_resampler_32f_xn_a_avx(float** resul
|
|||
|
||||
#ifdef LV_HAVE_AVX
|
||||
#include <immintrin.h>
|
||||
static inline void volk_gnsssdr_32f_xn_fast_resampler_32f_xn_u_avx(float** result, const float* local_code, float rem_code_phase_chips, float code_phase_step_chips, float code_phase_rate_step_chips, float* shifts_chips, unsigned int code_length_chips, int num_out_vectors, unsigned int num_points)
|
||||
static inline void volk_gnsssdr_32f_xn_high_dynamics_resampler_32f_xn_u_avx(float** result, const float* local_code, float rem_code_phase_chips, float code_phase_step_chips, float code_phase_rate_step_chips, float* shifts_chips, unsigned int code_length_chips, int num_out_vectors, unsigned int num_points)
|
||||
{
|
||||
float** _result = result;
|
||||
const unsigned int avx_iters = num_points / 8;
|
||||
|
|
@ -621,7 +621,7 @@ static inline void volk_gnsssdr_32f_xn_fast_resampler_32f_xn_u_avx(float** resul
|
|||
//#ifdef LV_HAVE_NEONV7
|
||||
//#include <arm_neon.h>
|
||||
//
|
||||
//static inline void volk_gnsssdr_32f_xn_fast_resampler_32f_xn_neon(float** result, const float* local_code, float rem_code_phase_chips, float code_phase_step_chips, float* shifts_chips, unsigned int code_length_chips, int num_out_vectors, unsigned int num_points)
|
||||
//static inline void volk_gnsssdr_32f_xn_high_dynamics_resampler_32f_xn_neon(float** result, const float* local_code, float rem_code_phase_chips, float code_phase_step_chips, float* shifts_chips, unsigned int code_length_chips, int num_out_vectors, unsigned int num_points)
|
||||
//{
|
||||
// float** _result = result;
|
||||
// const unsigned int neon_iters = num_points / 4;
|
||||
|
|
@ -704,4 +704,4 @@ static inline void volk_gnsssdr_32f_xn_fast_resampler_32f_xn_u_avx(float** resul
|
|||
//
|
||||
//#endif
|
||||
|
||||
#endif /*INCLUDED_volk_gnsssdr_32f_xn_fast_resampler_32f_xn_H*/
|
||||
#endif /*INCLUDED_volk_gnsssdr_32f_xn_high_dynamics_resampler_32f_xn_H*/
|
||||
|
|
@ -93,7 +93,7 @@ std::vector<volk_gnsssdr_test_case_t> init_test_list(volk_gnsssdr_test_params_t
|
|||
QA(VOLK_INIT_PUPP(volk_gnsssdr_16i_resamplerxnpuppet_16i, volk_gnsssdr_16i_xn_resampler_16i_xn, test_params))
|
||||
QA(VOLK_INIT_PUPP(volk_gnsssdr_32fc_resamplerxnpuppet_32fc, volk_gnsssdr_32fc_xn_resampler_32fc_xn, test_params))
|
||||
QA(VOLK_INIT_PUPP(volk_gnsssdr_32f_resamplerxnpuppet_32f, volk_gnsssdr_32f_xn_resampler_32f_xn, test_params))
|
||||
QA(VOLK_INIT_PUPP(volk_gnsssdr_32f_fast_resamplerxnpuppet_32f, volk_gnsssdr_32f_xn_fast_resampler_32f_xn, test_params))
|
||||
QA(VOLK_INIT_PUPP(volk_gnsssdr_32f_high_dynamics_resamplerxnpuppet_32f, volk_gnsssdr_32f_xn_high_dynamics_resampler_32f_xn, test_params))
|
||||
QA(VOLK_INIT_PUPP(volk_gnsssdr_16ic_x2_dotprodxnpuppet_16ic, volk_gnsssdr_16ic_x2_dot_prod_16ic_xn, test_params))
|
||||
QA(VOLK_INIT_PUPP(volk_gnsssdr_16ic_x2_rotator_dotprodxnpuppet_16ic, volk_gnsssdr_16ic_x2_rotator_dot_prod_16ic_xn, test_params_int16))
|
||||
QA(VOLK_INIT_PUPP(volk_gnsssdr_16ic_16i_rotator_dotprodxnpuppet_16ic, volk_gnsssdr_16ic_16i_rotator_dot_prod_16ic_xn, test_params_int16))
|
||||
|
|
|
|||
|
|
@ -55,7 +55,7 @@ GalileoE1BTelemetryDecoder::GalileoE1BTelemetryDecoder(ConfigurationInterface* c
|
|||
dump_ = configuration->property(role + ".dump", false);
|
||||
dump_filename_ = configuration->property(role + ".dump_filename", default_dump_filename);
|
||||
// make telemetry decoder object
|
||||
telemetry_decoder_ = galileo_e1b_make_telemetry_decoder_cc(satellite_, dump_); // TODO fix me
|
||||
telemetry_decoder_ = galileo_make_telemetry_decoder_cc(satellite_, 1, dump_); //unified galileo decoder set to INAV (frame_type=1)
|
||||
DLOG(INFO) << "telemetry_decoder(" << telemetry_decoder_->unique_id() << ")";
|
||||
channel_ = 0;
|
||||
if (in_streams_ > 1)
|
||||
|
|
|
|||
|
|
@ -36,7 +36,7 @@
|
|||
|
||||
|
||||
#include "telemetry_decoder_interface.h"
|
||||
#include "galileo_e1b_telemetry_decoder_cc.h"
|
||||
#include "galileo_telemetry_decoder_cc.h"
|
||||
#include "gnss_satellite.h"
|
||||
#include <string>
|
||||
|
||||
|
|
@ -76,7 +76,6 @@ public:
|
|||
|
||||
void set_satellite(const Gnss_Satellite& satellite) override;
|
||||
inline void set_channel(int channel) override { telemetry_decoder_->set_channel(channel); }
|
||||
|
||||
inline void reset() override
|
||||
{
|
||||
return;
|
||||
|
|
@ -88,7 +87,7 @@ public:
|
|||
}
|
||||
|
||||
private:
|
||||
galileo_e1b_telemetry_decoder_cc_sptr telemetry_decoder_;
|
||||
galileo_telemetry_decoder_cc_sptr telemetry_decoder_;
|
||||
Gnss_Satellite satellite_;
|
||||
int channel_;
|
||||
bool dump_;
|
||||
|
|
|
|||
|
|
@ -58,7 +58,7 @@ GalileoE5aTelemetryDecoder::GalileoE5aTelemetryDecoder(ConfigurationInterface* c
|
|||
dump_ = configuration->property(role + ".dump", false);
|
||||
dump_filename_ = configuration->property(role + ".dump_filename", default_dump_filename);
|
||||
// make telemetry decoder object
|
||||
telemetry_decoder_ = galileo_e5a_make_telemetry_decoder_cc(satellite_, dump_); // TODO fix me
|
||||
telemetry_decoder_ = galileo_make_telemetry_decoder_cc(satellite_, 2, dump_); //unified galileo decoder set to FNAV (frame_type=2)
|
||||
DLOG(INFO) << "telemetry_decoder(" << telemetry_decoder_->unique_id() << ")";
|
||||
channel_ = 0;
|
||||
if (in_streams_ > 1)
|
||||
|
|
|
|||
|
|
@ -37,7 +37,7 @@
|
|||
#ifndef GNSS_SDR_GALILEO_E5A_TELEMETRY_DECODER_H_
|
||||
#define GNSS_SDR_GALILEO_E5A_TELEMETRY_DECODER_H_
|
||||
|
||||
#include "galileo_e5a_telemetry_decoder_cc.h"
|
||||
#include "galileo_telemetry_decoder_cc.h"
|
||||
#include "telemetry_decoder_interface.h"
|
||||
#include <string>
|
||||
|
||||
|
|
@ -76,7 +76,6 @@ public:
|
|||
|
||||
void set_satellite(const Gnss_Satellite& satellite) override;
|
||||
inline void set_channel(int channel) override { telemetry_decoder_->set_channel(channel); }
|
||||
|
||||
inline void reset() override
|
||||
{
|
||||
return;
|
||||
|
|
@ -88,7 +87,7 @@ public:
|
|||
}
|
||||
|
||||
private:
|
||||
galileo_e5a_telemetry_decoder_cc_sptr telemetry_decoder_;
|
||||
galileo_telemetry_decoder_cc_sptr telemetry_decoder_;
|
||||
Gnss_Satellite satellite_;
|
||||
int channel_;
|
||||
bool dump_;
|
||||
|
|
|
|||
|
|
@ -20,11 +20,10 @@ set(TELEMETRY_DECODER_GR_BLOCKS_SOURCES
|
|||
gps_l1_ca_telemetry_decoder_cc.cc
|
||||
gps_l2c_telemetry_decoder_cc.cc
|
||||
gps_l5_telemetry_decoder_cc.cc
|
||||
galileo_e1b_telemetry_decoder_cc.cc
|
||||
sbas_l1_telemetry_decoder_cc.cc
|
||||
galileo_e5a_telemetry_decoder_cc.cc
|
||||
glonass_l1_ca_telemetry_decoder_cc.cc
|
||||
glonass_l2_ca_telemetry_decoder_cc.cc
|
||||
galileo_telemetry_decoder_cc.cc
|
||||
)
|
||||
|
||||
include_directories(
|
||||
|
|
|
|||
|
|
@ -1,501 +0,0 @@
|
|||
/*!
|
||||
* \file galileo_e1b_telemetry_decoder_cc.cc
|
||||
* \brief Implementation of a Galileo INAV message demodulator block
|
||||
* \author Mara Branzanti 2013. mara.branzanti(at)gmail.com
|
||||
* \author Javier Arribas 2013. jarribas(at)cttc.es
|
||||
*
|
||||
* -------------------------------------------------------------------------
|
||||
*
|
||||
* Copyright (C) 2010-2018 (see AUTHORS file for a list of contributors)
|
||||
*
|
||||
* GNSS-SDR is a software defined Global Navigation
|
||||
* Satellite Systems receiver
|
||||
*
|
||||
* This file is part of GNSS-SDR.
|
||||
*
|
||||
* GNSS-SDR is free software: you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation, either version 3 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* GNSS-SDR is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with GNSS-SDR. If not, see <https://www.gnu.org/licenses/>.
|
||||
*
|
||||
* -------------------------------------------------------------------------
|
||||
*/
|
||||
|
||||
|
||||
#include "galileo_e1b_telemetry_decoder_cc.h"
|
||||
#include "control_message_factory.h"
|
||||
#include "convolutional.h"
|
||||
#include "gnss_synchro.h"
|
||||
#include <boost/lexical_cast.hpp>
|
||||
#include <gnuradio/io_signature.h>
|
||||
#include <glog/logging.h>
|
||||
#include <volk_gnsssdr/volk_gnsssdr.h>
|
||||
#include <iostream>
|
||||
|
||||
|
||||
#define CRC_ERROR_LIMIT 6
|
||||
|
||||
using google::LogMessage;
|
||||
|
||||
|
||||
galileo_e1b_telemetry_decoder_cc_sptr
|
||||
galileo_e1b_make_telemetry_decoder_cc(const Gnss_Satellite &satellite, bool dump)
|
||||
{
|
||||
return galileo_e1b_telemetry_decoder_cc_sptr(new galileo_e1b_telemetry_decoder_cc(satellite, dump));
|
||||
}
|
||||
|
||||
|
||||
void galileo_e1b_telemetry_decoder_cc::viterbi_decoder(double *page_part_symbols, int32_t *page_part_bits)
|
||||
{
|
||||
Viterbi(page_part_bits, out0, state0, out1, state1,
|
||||
page_part_symbols, KK, nn, DataLength);
|
||||
}
|
||||
|
||||
|
||||
void galileo_e1b_telemetry_decoder_cc::deinterleaver(int32_t rows, int32_t cols, double *in, double *out)
|
||||
{
|
||||
for (int32_t r = 0; r < rows; r++)
|
||||
{
|
||||
for (int32_t c = 0; c < cols; c++)
|
||||
{
|
||||
out[c * rows + r] = in[r * cols + c];
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
galileo_e1b_telemetry_decoder_cc::galileo_e1b_telemetry_decoder_cc(
|
||||
const Gnss_Satellite &satellite,
|
||||
bool dump) : gr::block("galileo_e1b_telemetry_decoder_cc", gr::io_signature::make(1, 1, sizeof(Gnss_Synchro)),
|
||||
gr::io_signature::make(1, 1, sizeof(Gnss_Synchro)))
|
||||
{
|
||||
// Ephemeris data port out
|
||||
this->message_port_register_out(pmt::mp("telemetry"));
|
||||
// initialize internal vars
|
||||
d_dump = dump;
|
||||
d_satellite = Gnss_Satellite(satellite.get_system(), satellite.get_PRN());
|
||||
LOG(INFO) << "Initializing GALILEO E1B TELEMETRY PROCESSING";
|
||||
d_samples_per_symbol = (Galileo_E1_CODE_CHIP_RATE_HZ / Galileo_E1_B_CODE_LENGTH_CHIPS) / Galileo_E1_B_SYMBOL_RATE_BPS;
|
||||
|
||||
// set the preamble
|
||||
uint16_t preambles_bits[GALILEO_INAV_PREAMBLE_LENGTH_BITS] = GALILEO_INAV_PREAMBLE;
|
||||
|
||||
d_symbols_per_preamble = GALILEO_INAV_PREAMBLE_LENGTH_BITS * d_samples_per_symbol;
|
||||
|
||||
memcpy(static_cast<uint16_t *>(this->d_preambles_bits), static_cast<uint16_t *>(preambles_bits), GALILEO_INAV_PREAMBLE_LENGTH_BITS * sizeof(uint16_t));
|
||||
|
||||
// preamble bits to sampled symbols
|
||||
d_preambles_symbols = static_cast<int32_t *>(volk_gnsssdr_malloc(d_symbols_per_preamble * sizeof(int32_t), volk_gnsssdr_get_alignment()));
|
||||
int32_t n = 0;
|
||||
for (int32_t i = 0; i < GALILEO_INAV_PREAMBLE_LENGTH_BITS; i++)
|
||||
{
|
||||
for (uint32_t j = 0; j < d_samples_per_symbol; j++)
|
||||
{
|
||||
if (d_preambles_bits[i] == 1)
|
||||
{
|
||||
d_preambles_symbols[n] = 1;
|
||||
}
|
||||
else
|
||||
{
|
||||
d_preambles_symbols[n] = -1;
|
||||
}
|
||||
n++;
|
||||
}
|
||||
}
|
||||
d_sample_counter = 0ULL;
|
||||
d_stat = 0;
|
||||
d_preamble_index = 0ULL;
|
||||
|
||||
d_flag_frame_sync = false;
|
||||
|
||||
d_flag_parity = false;
|
||||
d_TOW_at_current_symbol_ms = 0;
|
||||
d_TOW_at_Preamble_ms = 0;
|
||||
delta_t = 0;
|
||||
d_CRC_error_counter = 0;
|
||||
flag_even_word_arrived = 0;
|
||||
d_flag_preamble = false;
|
||||
d_channel = 0;
|
||||
flag_TOW_set = false;
|
||||
|
||||
// vars for Viterbi decoder
|
||||
int32_t max_states = 1 << mm; // 2^mm
|
||||
g_encoder[0] = 121; // Polynomial G1
|
||||
g_encoder[1] = 91; // Polynomial G2
|
||||
out0 = static_cast<int32_t *>(volk_gnsssdr_malloc(max_states * sizeof(int32_t), volk_gnsssdr_get_alignment()));
|
||||
out1 = static_cast<int32_t *>(volk_gnsssdr_malloc(max_states * sizeof(int32_t), volk_gnsssdr_get_alignment()));
|
||||
state0 = static_cast<int32_t *>(volk_gnsssdr_malloc(max_states * sizeof(int32_t), volk_gnsssdr_get_alignment()));
|
||||
state1 = static_cast<int32_t *>(volk_gnsssdr_malloc(max_states * sizeof(int32_t), volk_gnsssdr_get_alignment()));
|
||||
// create appropriate transition matrices
|
||||
nsc_transit(out0, state0, 0, g_encoder, KK, nn);
|
||||
nsc_transit(out1, state1, 1, g_encoder, KK, nn);
|
||||
}
|
||||
|
||||
|
||||
galileo_e1b_telemetry_decoder_cc::~galileo_e1b_telemetry_decoder_cc()
|
||||
{
|
||||
volk_gnsssdr_free(d_preambles_symbols);
|
||||
volk_gnsssdr_free(out0);
|
||||
volk_gnsssdr_free(out1);
|
||||
volk_gnsssdr_free(state0);
|
||||
volk_gnsssdr_free(state1);
|
||||
if (d_dump_file.is_open() == true)
|
||||
{
|
||||
try
|
||||
{
|
||||
d_dump_file.close();
|
||||
}
|
||||
catch (const std::exception &ex)
|
||||
{
|
||||
LOG(WARNING) << "Exception in destructor closing the dump file " << ex.what();
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
void galileo_e1b_telemetry_decoder_cc::decode_word(double *page_part_symbols, int32_t frame_length)
|
||||
{
|
||||
// 1. De-interleave
|
||||
double *page_part_symbols_deint = static_cast<double *>(volk_gnsssdr_malloc(frame_length * sizeof(double), volk_gnsssdr_get_alignment()));
|
||||
deinterleaver(GALILEO_INAV_INTERLEAVER_ROWS, GALILEO_INAV_INTERLEAVER_COLS, page_part_symbols, page_part_symbols_deint);
|
||||
|
||||
// 2. Viterbi decoder
|
||||
// 2.1 Take into account the NOT gate in G2 polynomial (Galileo ICD Figure 13, FEC encoder)
|
||||
// 2.2 Take into account the possible inversion of the polarity due to PLL lock at 180º
|
||||
for (int32_t i = 0; i < frame_length; i++)
|
||||
{
|
||||
if ((i + 1) % 2 == 0)
|
||||
{
|
||||
page_part_symbols_deint[i] = -page_part_symbols_deint[i];
|
||||
}
|
||||
}
|
||||
|
||||
int32_t *page_part_bits = static_cast<int32_t *>(volk_gnsssdr_malloc((frame_length / 2) * sizeof(int32_t), volk_gnsssdr_get_alignment()));
|
||||
viterbi_decoder(page_part_symbols_deint, page_part_bits);
|
||||
volk_gnsssdr_free(page_part_symbols_deint);
|
||||
|
||||
// 3. Call the Galileo page decoder
|
||||
std::string page_String;
|
||||
for (int32_t i = 0; i < (frame_length / 2); i++)
|
||||
{
|
||||
if (page_part_bits[i] > 0)
|
||||
{
|
||||
page_String.push_back('1');
|
||||
}
|
||||
else
|
||||
{
|
||||
page_String.push_back('0');
|
||||
}
|
||||
}
|
||||
|
||||
if (page_part_bits[0] == 1)
|
||||
{
|
||||
// DECODE COMPLETE WORD (even + odd) and TEST CRC
|
||||
d_nav.split_page(page_String, flag_even_word_arrived);
|
||||
if (d_nav.flag_CRC_test == true)
|
||||
{
|
||||
LOG(INFO) << "Galileo E1 CRC correct in channel " << d_channel << " from satellite " << d_satellite;
|
||||
//std::cout << "Galileo E1 CRC correct on channel " << d_channel << " from satellite " << d_satellite << std::endl;
|
||||
}
|
||||
else
|
||||
{
|
||||
std::cout << "Galileo E1 CRC error in channel " << d_channel << " from satellite " << d_satellite << std::endl;
|
||||
LOG(INFO) << "Galileo E1 CRC error in channel " << d_channel << " from satellite " << d_satellite;
|
||||
}
|
||||
flag_even_word_arrived = 0;
|
||||
}
|
||||
else
|
||||
{
|
||||
// STORE HALF WORD (even page)
|
||||
d_nav.split_page(page_String.c_str(), flag_even_word_arrived);
|
||||
flag_even_word_arrived = 1;
|
||||
}
|
||||
volk_gnsssdr_free(page_part_bits);
|
||||
|
||||
// 4. Push the new navigation data to the queues
|
||||
if (d_nav.have_new_ephemeris() == true)
|
||||
{
|
||||
// get object for this SV (mandatory)
|
||||
std::shared_ptr<Galileo_Ephemeris> tmp_obj = std::make_shared<Galileo_Ephemeris>(d_nav.get_ephemeris());
|
||||
std::cout << "New Galileo E1 I/NAV message received in channel " << d_channel << ": ephemeris from satellite " << d_satellite << std::endl;
|
||||
this->message_port_pub(pmt::mp("telemetry"), pmt::make_any(tmp_obj));
|
||||
}
|
||||
if (d_nav.have_new_iono_and_GST() == true)
|
||||
{
|
||||
// get object for this SV (mandatory)
|
||||
std::shared_ptr<Galileo_Iono> tmp_obj = std::make_shared<Galileo_Iono>(d_nav.get_iono());
|
||||
std::cout << "New Galileo E1 I/NAV message received in channel " << d_channel << ": iono/GST model parameters from satellite " << d_satellite << std::endl;
|
||||
this->message_port_pub(pmt::mp("telemetry"), pmt::make_any(tmp_obj));
|
||||
}
|
||||
if (d_nav.have_new_utc_model() == true)
|
||||
{
|
||||
// get object for this SV (mandatory)
|
||||
std::shared_ptr<Galileo_Utc_Model> tmp_obj = std::make_shared<Galileo_Utc_Model>(d_nav.get_utc_model());
|
||||
std::cout << "New Galileo E1 I/NAV message received in channel " << d_channel << ": UTC model parameters from satellite " << d_satellite << std::endl;
|
||||
this->message_port_pub(pmt::mp("telemetry"), pmt::make_any(tmp_obj));
|
||||
}
|
||||
if (d_nav.have_new_almanac() == true)
|
||||
{
|
||||
std::shared_ptr<Galileo_Almanac> tmp_obj = std::make_shared<Galileo_Almanac>(d_nav.get_almanac());
|
||||
this->message_port_pub(pmt::mp("telemetry"), pmt::make_any(tmp_obj));
|
||||
//debug
|
||||
std::cout << "Galileo E1 I/NAV almanac received in channel " << d_channel << " from satellite " << d_satellite << std::endl;
|
||||
DLOG(INFO) << "GPS_to_Galileo time conversion:";
|
||||
DLOG(INFO) << "A0G=" << tmp_obj->A_0G_10;
|
||||
DLOG(INFO) << "A1G=" << tmp_obj->A_1G_10;
|
||||
DLOG(INFO) << "T0G=" << tmp_obj->t_0G_10;
|
||||
DLOG(INFO) << "WN_0G_10=" << tmp_obj->WN_0G_10;
|
||||
DLOG(INFO) << "Current parameters:";
|
||||
DLOG(INFO) << "d_TOW_at_current_symbol_ms=" << d_TOW_at_current_symbol_ms;
|
||||
DLOG(INFO) << "d_nav.WN_0=" << d_nav.WN_0;
|
||||
delta_t = tmp_obj->A_0G_10 + tmp_obj->A_1G_10 * (static_cast<double>(d_TOW_at_current_symbol_ms) / 1000.0 - tmp_obj->t_0G_10 + 604800 * (fmod((d_nav.WN_0 - tmp_obj->WN_0G_10), 64)));
|
||||
DLOG(INFO) << "delta_t=" << delta_t << "[s]";
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
void galileo_e1b_telemetry_decoder_cc::set_satellite(const Gnss_Satellite &satellite)
|
||||
{
|
||||
d_satellite = Gnss_Satellite(satellite.get_system(), satellite.get_PRN());
|
||||
DLOG(INFO) << "Setting decoder Finite State Machine to satellite " << d_satellite;
|
||||
DLOG(INFO) << "Navigation Satellite set to " << d_satellite;
|
||||
}
|
||||
|
||||
|
||||
void galileo_e1b_telemetry_decoder_cc::set_channel(int32_t channel)
|
||||
{
|
||||
d_channel = channel;
|
||||
LOG(INFO) << "Navigation channel set to " << channel;
|
||||
// ############# ENABLE DATA FILE LOG #################
|
||||
if (d_dump == true)
|
||||
{
|
||||
if (d_dump_file.is_open() == false)
|
||||
{
|
||||
try
|
||||
{
|
||||
d_dump_filename = "telemetry";
|
||||
d_dump_filename.append(boost::lexical_cast<std::string>(d_channel));
|
||||
d_dump_filename.append(".dat");
|
||||
d_dump_file.exceptions(std::ifstream::failbit | std::ifstream::badbit);
|
||||
d_dump_file.open(d_dump_filename.c_str(), std::ios::out | std::ios::binary);
|
||||
LOG(INFO) << "Telemetry decoder dump enabled on channel " << d_channel << " Log file: " << d_dump_filename.c_str();
|
||||
}
|
||||
catch (const std::ifstream::failure &e)
|
||||
{
|
||||
LOG(WARNING) << "channel " << d_channel << " Exception opening trk dump file " << e.what();
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
int galileo_e1b_telemetry_decoder_cc::general_work(int noutput_items __attribute__((unused)), gr_vector_int &ninput_items __attribute__((unused)),
|
||||
gr_vector_const_void_star &input_items, gr_vector_void_star &output_items)
|
||||
{
|
||||
int32_t corr_value = 0;
|
||||
int32_t preamble_diff = 0;
|
||||
|
||||
Gnss_Synchro **out = reinterpret_cast<Gnss_Synchro **>(&output_items[0]); // Get the output buffer pointer
|
||||
const Gnss_Synchro **in = reinterpret_cast<const Gnss_Synchro **>(&input_items[0]); // Get the input buffer pointer
|
||||
|
||||
Gnss_Synchro current_symbol; // structure to save the synchronization information and send the output object to the next block
|
||||
// 1. Copy the current tracking output
|
||||
current_symbol = in[0][0];
|
||||
d_symbol_history.push_back(current_symbol); // add new symbol to the symbol queue
|
||||
d_sample_counter++; // count for the processed samples
|
||||
consume_each(1);
|
||||
|
||||
d_flag_preamble = false;
|
||||
uint32_t required_symbols = static_cast<uint32_t>(GALILEO_INAV_PAGE_SYMBOLS) + static_cast<uint32_t>(d_symbols_per_preamble);
|
||||
|
||||
if (d_symbol_history.size() > required_symbols)
|
||||
{
|
||||
// TODO Optimize me!
|
||||
// ******* preamble correlation ********
|
||||
for (int32_t i = 0; i < d_symbols_per_preamble; i++)
|
||||
{
|
||||
if (d_symbol_history.at(i).Prompt_I < 0) // symbols clipping
|
||||
{
|
||||
corr_value -= d_preambles_symbols[i];
|
||||
}
|
||||
else
|
||||
{
|
||||
corr_value += d_preambles_symbols[i];
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// ******* frame sync ******************
|
||||
if (d_stat == 0) // no preamble information
|
||||
{
|
||||
if (abs(corr_value) >= d_symbols_per_preamble)
|
||||
{
|
||||
d_preamble_index = d_sample_counter; // record the preamble sample stamp
|
||||
LOG(INFO) << "Preamble detection for Galileo satellite " << this->d_satellite;
|
||||
d_stat = 1; // enter into frame pre-detection status
|
||||
}
|
||||
}
|
||||
else if (d_stat == 1) // possible preamble lock
|
||||
{
|
||||
if (abs(corr_value) >= d_symbols_per_preamble)
|
||||
{
|
||||
// check preamble separation
|
||||
preamble_diff = static_cast<int32_t>(d_sample_counter - d_preamble_index);
|
||||
if (abs(preamble_diff - GALILEO_INAV_PREAMBLE_PERIOD_SYMBOLS) == 0)
|
||||
{
|
||||
// try to decode frame
|
||||
LOG(INFO) << "Starting page decoder for Galileo satellite " << this->d_satellite;
|
||||
d_preamble_index = d_sample_counter; // record the preamble sample stamp
|
||||
d_stat = 2;
|
||||
}
|
||||
else
|
||||
{
|
||||
if (preamble_diff > GALILEO_INAV_PREAMBLE_PERIOD_SYMBOLS)
|
||||
{
|
||||
d_stat = 0; // start again
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
else if (d_stat == 2)
|
||||
{
|
||||
if (d_sample_counter == d_preamble_index + static_cast<uint64_t>(GALILEO_INAV_PREAMBLE_PERIOD_SYMBOLS))
|
||||
{
|
||||
// NEW Galileo page part is received
|
||||
// 0. fetch the symbols into an array
|
||||
int32_t frame_length = GALILEO_INAV_PAGE_PART_SYMBOLS - d_symbols_per_preamble;
|
||||
double *page_part_symbols = static_cast<double *>(volk_gnsssdr_malloc(frame_length * sizeof(double), volk_gnsssdr_get_alignment()));
|
||||
|
||||
for (int32_t i = 0; i < frame_length; i++)
|
||||
{
|
||||
if (corr_value > 0)
|
||||
{
|
||||
page_part_symbols[i] = d_symbol_history.at(i + d_symbols_per_preamble).Prompt_I; // because last symbol of the preamble is just received now!
|
||||
}
|
||||
else
|
||||
{
|
||||
page_part_symbols[i] = -d_symbol_history.at(i + d_symbols_per_preamble).Prompt_I; // because last symbol of the preamble is just received now!
|
||||
}
|
||||
}
|
||||
|
||||
// call the decoder
|
||||
decode_word(page_part_symbols, frame_length);
|
||||
if (d_nav.flag_CRC_test == true)
|
||||
{
|
||||
d_CRC_error_counter = 0;
|
||||
d_flag_preamble = true; // valid preamble indicator (initialized to false every work())
|
||||
d_preamble_index = d_sample_counter; // record the preamble sample stamp (t_P)
|
||||
if (!d_flag_frame_sync)
|
||||
{
|
||||
d_flag_frame_sync = true;
|
||||
DLOG(INFO) << " Frame sync SAT " << this->d_satellite << " with preamble start at "
|
||||
<< d_symbol_history.at(0).Tracking_sample_counter << " [samples]";
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
d_CRC_error_counter++;
|
||||
d_preamble_index = d_sample_counter; // record the preamble sample stamp
|
||||
if (d_CRC_error_counter > CRC_ERROR_LIMIT)
|
||||
{
|
||||
LOG(INFO) << "Lost of frame sync SAT " << this->d_satellite;
|
||||
d_flag_frame_sync = false;
|
||||
d_stat = 0;
|
||||
d_TOW_at_current_symbol_ms = 0;
|
||||
d_TOW_at_Preamble_ms = 0;
|
||||
d_nav.flag_TOW_set = false;
|
||||
}
|
||||
}
|
||||
volk_gnsssdr_free(page_part_symbols);
|
||||
}
|
||||
}
|
||||
|
||||
// UPDATE GNSS SYNCHRO DATA
|
||||
// 2. Add the telemetry decoder information
|
||||
if (this->d_flag_preamble == true and d_nav.flag_TOW_set == true)
|
||||
// update TOW at the preamble instant
|
||||
{
|
||||
if (d_nav.flag_TOW_5 == true) // page 5 arrived and decoded, so we are in the odd page (since Tow refers to the even page, we have to add 1 sec)
|
||||
{
|
||||
// TOW_5 refers to the even preamble, but when we decode it we are in the odd part, so 1 second later plus the decoding delay
|
||||
d_TOW_at_Preamble_ms = static_cast<uint32_t>(d_nav.TOW_5 * 1000.0);
|
||||
d_TOW_at_current_symbol_ms = d_TOW_at_Preamble_ms + static_cast<uint32_t>(GALILEO_INAV_PAGE_PART_MS + (required_symbols + 1) * GALILEO_E1_CODE_PERIOD_MS);
|
||||
d_nav.flag_TOW_5 = false;
|
||||
}
|
||||
|
||||
else if (d_nav.flag_TOW_6 == true) // page 6 arrived and decoded, so we are in the odd page (since Tow refers to the even page, we have to add 1 sec)
|
||||
{
|
||||
// TOW_6 refers to the even preamble, but when we decode it we are in the odd part, so 1 second later plus the decoding delay
|
||||
d_TOW_at_Preamble_ms = static_cast<uint32_t>(d_nav.TOW_6 * 1000.0);
|
||||
d_TOW_at_current_symbol_ms = d_TOW_at_Preamble_ms + static_cast<uint32_t>(GALILEO_INAV_PAGE_PART_MS + (required_symbols + 1) * GALILEO_E1_CODE_PERIOD_MS);
|
||||
d_nav.flag_TOW_6 = false;
|
||||
}
|
||||
else
|
||||
{
|
||||
// this page has no timing information
|
||||
d_TOW_at_current_symbol_ms += static_cast<uint32_t>(GALILEO_E1_CODE_PERIOD_MS); // + GALILEO_INAV_PAGE_PART_SYMBOLS*GALILEO_E1_CODE_PERIOD;
|
||||
}
|
||||
}
|
||||
else // if there is not a new preamble, we define the TOW of the current symbol
|
||||
{
|
||||
if (d_nav.flag_TOW_set == true)
|
||||
{
|
||||
d_TOW_at_current_symbol_ms += static_cast<uint32_t>(GALILEO_E1_CODE_PERIOD_MS);
|
||||
}
|
||||
}
|
||||
|
||||
// remove used symbols from history
|
||||
// todo: Use circular buffer here
|
||||
if (d_symbol_history.size() > required_symbols)
|
||||
{
|
||||
d_symbol_history.pop_front();
|
||||
}
|
||||
|
||||
if (d_nav.flag_TOW_set)
|
||||
{
|
||||
if (d_nav.flag_GGTO_1 == true and d_nav.flag_GGTO_2 == true and d_nav.flag_GGTO_3 == true and d_nav.flag_GGTO_4 == true) // all GGTO parameters arrived
|
||||
{
|
||||
delta_t = d_nav.A_0G_10 + d_nav.A_1G_10 * (static_cast<double>(d_TOW_at_current_symbol_ms) / 1000.0 - d_nav.t_0G_10 + 604800.0 * (fmod((d_nav.WN_0 - d_nav.WN_0G_10), 64.0)));
|
||||
}
|
||||
|
||||
current_symbol.Flag_valid_word = d_nav.flag_TOW_set;
|
||||
current_symbol.TOW_at_current_symbol_ms = d_TOW_at_current_symbol_ms;
|
||||
// todo: Galileo to GPS time conversion should be moved to observable block.
|
||||
// current_symbol.TOW_at_current_symbol_ms -= delta_t; //Galileo to GPS TOW
|
||||
|
||||
if (d_dump == true)
|
||||
{
|
||||
// MULTIPLEXED FILE RECORDING - Record results to file
|
||||
try
|
||||
{
|
||||
double tmp_double;
|
||||
uint64_t tmp_ulong_int;
|
||||
tmp_double = static_cast<double>(d_TOW_at_current_symbol_ms) / 1000.0;
|
||||
d_dump_file.write(reinterpret_cast<char *>(&tmp_double), sizeof(double));
|
||||
tmp_ulong_int = current_symbol.Tracking_sample_counter;
|
||||
d_dump_file.write(reinterpret_cast<char *>(&tmp_ulong_int), sizeof(uint64_t));
|
||||
tmp_double = static_cast<double>(d_TOW_at_Preamble_ms) / 1000.0;
|
||||
d_dump_file.write(reinterpret_cast<char *>(&tmp_double), sizeof(double));
|
||||
}
|
||||
catch (const std::ifstream::failure &e)
|
||||
{
|
||||
LOG(WARNING) << "Exception writing observables dump file " << e.what();
|
||||
}
|
||||
}
|
||||
// 3. Make the output (copy the object contents to the GNURadio reserved memory)
|
||||
*out[0] = current_symbol;
|
||||
return 1;
|
||||
}
|
||||
else
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
}
|
||||
|
|
@ -1,513 +0,0 @@
|
|||
/*!
|
||||
* \file galileo_e5a_telemetry_decoder_cc.cc
|
||||
* \brief Implementation of a Galileo FNAV message demodulator block
|
||||
* \author Marc Sales, 2014. marcsales92(at)gmail.com
|
||||
* Javier Arribas, 2017. jarribas(at)cttc.es
|
||||
* \based on work from:
|
||||
* <ul>
|
||||
* <li> Javier Arribas, 2011. jarribas(at)cttc.es
|
||||
* </ul>
|
||||
*
|
||||
*
|
||||
* -------------------------------------------------------------------------
|
||||
*
|
||||
* Copyright (C) 2010-2018 (see AUTHORS file for a list of contributors)
|
||||
*
|
||||
* GNSS-SDR is a software defined Global Navigation
|
||||
* Satellite Systems receiver
|
||||
*
|
||||
* This file is part of GNSS-SDR.
|
||||
*
|
||||
* GNSS-SDR is free software: you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation, either version 3 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* GNSS-SDR is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with GNSS-SDR. If not, see <https://www.gnu.org/licenses/>.
|
||||
*
|
||||
* -------------------------------------------------------------------------
|
||||
*/
|
||||
|
||||
#include "galileo_e5a_telemetry_decoder_cc.h"
|
||||
#include "control_message_factory.h"
|
||||
#include "convolutional.h"
|
||||
#include "display.h"
|
||||
#include <boost/lexical_cast.hpp>
|
||||
#include <gnuradio/io_signature.h>
|
||||
#include <glog/logging.h>
|
||||
#include <volk_gnsssdr/volk_gnsssdr.h>
|
||||
#include <cmath>
|
||||
#include <iostream>
|
||||
|
||||
|
||||
#define GALILEO_E5a_CRC_ERROR_LIMIT 6
|
||||
|
||||
using google::LogMessage;
|
||||
|
||||
|
||||
galileo_e5a_telemetry_decoder_cc_sptr
|
||||
galileo_e5a_make_telemetry_decoder_cc(const Gnss_Satellite &satellite, bool dump)
|
||||
{
|
||||
return galileo_e5a_telemetry_decoder_cc_sptr(new galileo_e5a_telemetry_decoder_cc(satellite, dump));
|
||||
}
|
||||
|
||||
|
||||
void galileo_e5a_telemetry_decoder_cc::viterbi_decoder(double *page_part_symbols, int32_t *page_part_bits)
|
||||
{
|
||||
Viterbi(page_part_bits, out0, state0, out1, state1,
|
||||
page_part_symbols, KK, nn, DataLength);
|
||||
}
|
||||
|
||||
|
||||
void galileo_e5a_telemetry_decoder_cc::deinterleaver(int32_t rows, int32_t cols, double *in, double *out)
|
||||
{
|
||||
for (int32_t r = 0; r < rows; r++)
|
||||
{
|
||||
for (int32_t c = 0; c < cols; c++)
|
||||
{
|
||||
out[c * rows + r] = in[r * cols + c];
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
void galileo_e5a_telemetry_decoder_cc::decode_word(double *page_symbols, int32_t frame_length)
|
||||
{
|
||||
// 1. De-interleave
|
||||
double *page_symbols_deint = static_cast<double *>(volk_gnsssdr_malloc(frame_length * sizeof(double), volk_gnsssdr_get_alignment()));
|
||||
deinterleaver(GALILEO_FNAV_INTERLEAVER_ROWS, GALILEO_FNAV_INTERLEAVER_COLS, page_symbols, page_symbols_deint);
|
||||
|
||||
// 2. Viterbi decoder
|
||||
// 2.1 Take into account the NOT gate in G2 polynomial (Galileo ICD Figure 13, FEC encoder)
|
||||
// 2.2 Take into account the possible inversion of the polarity due to PLL lock at 180<38>
|
||||
for (int32_t i = 0; i < frame_length; i++)
|
||||
{
|
||||
if ((i + 1) % 2 == 0)
|
||||
{
|
||||
page_symbols_deint[i] = -page_symbols_deint[i];
|
||||
}
|
||||
}
|
||||
int32_t *page_bits = static_cast<int32_t *>(volk_gnsssdr_malloc((frame_length / 2) * sizeof(int32_t), volk_gnsssdr_get_alignment()));
|
||||
viterbi_decoder(page_symbols_deint, page_bits);
|
||||
volk_gnsssdr_free(page_symbols_deint);
|
||||
|
||||
// 3. Call the Galileo page decoder
|
||||
std::string page_String;
|
||||
for (int32_t i = 0; i < frame_length; i++)
|
||||
{
|
||||
if (page_bits[i] > 0)
|
||||
{
|
||||
page_String.push_back('1');
|
||||
}
|
||||
else
|
||||
{
|
||||
page_String.push_back('0');
|
||||
}
|
||||
}
|
||||
volk_gnsssdr_free(page_bits);
|
||||
|
||||
// DECODE COMPLETE WORD (even + odd) and TEST CRC
|
||||
d_nav.split_page(page_String);
|
||||
if (d_nav.flag_CRC_test == true)
|
||||
{
|
||||
LOG(INFO) << "Galileo E5a CRC correct in channel " << d_channel << " from satellite " << d_satellite;
|
||||
}
|
||||
else
|
||||
{
|
||||
std::cout << "Galileo E5a CRC error in channel " << d_channel << " from satellite " << d_satellite << std::endl;
|
||||
LOG(INFO) << "Galileo E5a CRC error in channel " << d_channel << " from satellite " << d_satellite;
|
||||
}
|
||||
|
||||
// 4. Push the new navigation data to the queues
|
||||
if (d_nav.have_new_ephemeris() == true)
|
||||
{
|
||||
std::shared_ptr<Galileo_Ephemeris> tmp_obj = std::make_shared<Galileo_Ephemeris>(d_nav.get_ephemeris());
|
||||
std::cout << TEXT_MAGENTA << "New Galileo E5a F/NAV message received in channel " << d_channel << ": ephemeris from satellite " << d_satellite << TEXT_RESET << std::endl;
|
||||
this->message_port_pub(pmt::mp("telemetry"), pmt::make_any(tmp_obj));
|
||||
}
|
||||
if (d_nav.have_new_iono_and_GST() == true)
|
||||
{
|
||||
std::shared_ptr<Galileo_Iono> tmp_obj = std::make_shared<Galileo_Iono>(d_nav.get_iono());
|
||||
std::cout << TEXT_MAGENTA << "New Galileo E5a F/NAV message received in channel " << d_channel << ": iono/GST model parameters from satellite " << d_satellite << TEXT_RESET << std::endl;
|
||||
this->message_port_pub(pmt::mp("telemetry"), pmt::make_any(tmp_obj));
|
||||
}
|
||||
if (d_nav.have_new_utc_model() == true)
|
||||
{
|
||||
std::shared_ptr<Galileo_Utc_Model> tmp_obj = std::make_shared<Galileo_Utc_Model>(d_nav.get_utc_model());
|
||||
std::cout << TEXT_MAGENTA << "New Galileo E5a F/NAV message received in channel " << d_channel << ": UTC model parameters from satellite " << d_satellite << TEXT_RESET << std::endl;
|
||||
this->message_port_pub(pmt::mp("telemetry"), pmt::make_any(tmp_obj));
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
galileo_e5a_telemetry_decoder_cc::galileo_e5a_telemetry_decoder_cc(
|
||||
const Gnss_Satellite &satellite, bool dump) : gr::block("galileo_e5a_telemetry_decoder_cc",
|
||||
gr::io_signature::make(1, 1, sizeof(Gnss_Synchro)),
|
||||
gr::io_signature::make(1, 1, sizeof(Gnss_Synchro)))
|
||||
{
|
||||
// Ephemeris data port out
|
||||
this->message_port_register_out(pmt::mp("telemetry"));
|
||||
// initialize internal vars
|
||||
d_dump = dump;
|
||||
d_satellite = Gnss_Satellite(satellite.get_system(), satellite.get_PRN());
|
||||
|
||||
// set the preamble
|
||||
for (int32_t i = 0; i < GALILEO_FNAV_PREAMBLE_LENGTH_BITS; i++)
|
||||
{
|
||||
if (GALILEO_FNAV_PREAMBLE.at(i) == '0')
|
||||
{
|
||||
d_preambles_bits[i] = 1;
|
||||
}
|
||||
else
|
||||
{
|
||||
d_preambles_bits[i] = -1;
|
||||
}
|
||||
}
|
||||
for (int32_t i = 0; i < GALILEO_FNAV_PREAMBLE_LENGTH_BITS; i++)
|
||||
{
|
||||
for (int32_t k = 0; k < GALILEO_FNAV_CODES_PER_SYMBOL; k++)
|
||||
{
|
||||
d_preamble_samples[(i * GALILEO_FNAV_CODES_PER_SYMBOL) + k] = d_preambles_bits[i];
|
||||
}
|
||||
}
|
||||
|
||||
d_sample_counter = 0ULL;
|
||||
d_stat = 0;
|
||||
corr_value = 0;
|
||||
d_flag_preamble = false;
|
||||
d_preamble_index = 0ULL;
|
||||
d_flag_frame_sync = false;
|
||||
d_TOW_at_current_symbol_ms = 0;
|
||||
d_TOW_at_Preamble_ms = 0;
|
||||
flag_TOW_set = false;
|
||||
d_CRC_error_counter = 0;
|
||||
d_channel = 0;
|
||||
delta_t = 0.0;
|
||||
d_symbol_counter = 0;
|
||||
d_prompt_acum = 0.0;
|
||||
flag_bit_start = true;
|
||||
new_symbol = false;
|
||||
required_symbols = GALILEO_FNAV_SYMBOLS_PER_PAGE + GALILEO_FNAV_PREAMBLE_LENGTH_BITS;
|
||||
|
||||
// vars for Viterbi decoder
|
||||
int32_t max_states = 1 << mm; // 2^mm
|
||||
g_encoder[0] = 121; // Polynomial G1
|
||||
g_encoder[1] = 91; // Polynomial G2
|
||||
out0 = static_cast<int32_t *>(volk_gnsssdr_malloc(max_states * sizeof(int32_t), volk_gnsssdr_get_alignment()));
|
||||
out1 = static_cast<int32_t *>(volk_gnsssdr_malloc(max_states * sizeof(int32_t), volk_gnsssdr_get_alignment()));
|
||||
state0 = static_cast<int32_t *>(volk_gnsssdr_malloc(max_states * sizeof(int32_t), volk_gnsssdr_get_alignment()));
|
||||
state1 = static_cast<int32_t *>(volk_gnsssdr_malloc(max_states * sizeof(int32_t), volk_gnsssdr_get_alignment()));
|
||||
// create appropriate transition matrices
|
||||
nsc_transit(out0, state0, 0, g_encoder, KK, nn);
|
||||
nsc_transit(out1, state1, 1, g_encoder, KK, nn);
|
||||
}
|
||||
|
||||
|
||||
galileo_e5a_telemetry_decoder_cc::~galileo_e5a_telemetry_decoder_cc()
|
||||
{
|
||||
volk_gnsssdr_free(out0);
|
||||
volk_gnsssdr_free(out1);
|
||||
volk_gnsssdr_free(state0);
|
||||
volk_gnsssdr_free(state1);
|
||||
if (d_dump_file.is_open() == true)
|
||||
{
|
||||
try
|
||||
{
|
||||
d_dump_file.close();
|
||||
}
|
||||
catch (const std::exception &ex)
|
||||
{
|
||||
LOG(WARNING) << "Exception in destructor closing the dump file " << ex.what();
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
void galileo_e5a_telemetry_decoder_cc::set_satellite(const Gnss_Satellite &satellite)
|
||||
{
|
||||
d_satellite = Gnss_Satellite(satellite.get_system(), satellite.get_PRN());
|
||||
DLOG(INFO) << "Setting decoder Finite State Machine to satellite " << d_satellite;
|
||||
DLOG(INFO) << "Navigation Satellite set to " << d_satellite;
|
||||
}
|
||||
|
||||
|
||||
void galileo_e5a_telemetry_decoder_cc::set_channel(int32_t channel)
|
||||
{
|
||||
d_channel = channel;
|
||||
LOG(INFO) << "Navigation channel set to " << channel;
|
||||
// Enable data file logging
|
||||
if (d_dump == true)
|
||||
{
|
||||
if (d_dump_file.is_open() == false)
|
||||
{
|
||||
try
|
||||
{
|
||||
d_dump_filename = "telemetry";
|
||||
d_dump_filename.append(boost::lexical_cast<std::string>(d_channel));
|
||||
d_dump_filename.append(".dat");
|
||||
d_dump_file.exceptions(std::ifstream::failbit | std::ifstream::badbit);
|
||||
d_dump_file.open(d_dump_filename.c_str(), std::ios::out | std::ios::binary);
|
||||
LOG(INFO) << "Telemetry decoder dump enabled on channel " << d_channel << " Log file: " << d_dump_filename.c_str();
|
||||
}
|
||||
catch (const std::ifstream::failure &e)
|
||||
{
|
||||
LOG(WARNING) << "channel " << d_channel << " Exception opening trk dump file " << e.what();
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
int galileo_e5a_telemetry_decoder_cc::general_work(int noutput_items __attribute__((unused)), gr_vector_int &ninput_items __attribute__((unused)),
|
||||
gr_vector_const_void_star &input_items, gr_vector_void_star &output_items)
|
||||
{
|
||||
int32_t preamble_diff = 0;
|
||||
|
||||
Gnss_Synchro *out = reinterpret_cast<Gnss_Synchro *>(output_items[0]); // Get the output buffer pointer
|
||||
const Gnss_Synchro *in = reinterpret_cast<const Gnss_Synchro *>(input_items[0]); // Get the input buffer pointer
|
||||
|
||||
// 1. Copy the current tracking output
|
||||
Gnss_Synchro current_sample = in[0];
|
||||
d_symbol_counter++;
|
||||
if (flag_bit_start)
|
||||
{
|
||||
d_prompt_acum += current_sample.Prompt_I;
|
||||
if (d_symbol_counter == GALILEO_FNAV_CODES_PER_SYMBOL)
|
||||
{
|
||||
current_sample.Prompt_I = d_prompt_acum / static_cast<double>(GALILEO_FNAV_CODES_PER_SYMBOL);
|
||||
d_symbol_history.push_back(current_sample); // add new symbol to the symbol queue
|
||||
d_prompt_acum = 0.0;
|
||||
d_symbol_counter = 0;
|
||||
new_symbol = true;
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
if (current_sample.Prompt_I < 0.0)
|
||||
{
|
||||
d_preamble_init.push_back(1);
|
||||
}
|
||||
else
|
||||
{
|
||||
d_preamble_init.push_back(-1);
|
||||
}
|
||||
|
||||
if (d_preamble_init.size() == GALILEO_FNAV_CODES_PER_PREAMBLE)
|
||||
{
|
||||
std::deque<int32_t>::iterator iter;
|
||||
int32_t k = 0;
|
||||
corr_value = 0;
|
||||
for (iter = d_preamble_init.begin(); iter != d_preamble_init.end(); iter++)
|
||||
{
|
||||
corr_value += *iter * d_preamble_samples[k];
|
||||
k++;
|
||||
}
|
||||
if (abs(corr_value) == GALILEO_FNAV_CODES_PER_PREAMBLE)
|
||||
{
|
||||
d_symbol_counter = 0;
|
||||
flag_bit_start = true;
|
||||
corr_value = 0;
|
||||
d_preamble_init.clear();
|
||||
d_symbol_history.clear();
|
||||
LOG(INFO) << "Bit start sync for Galileo E5a satellite " << d_satellite;
|
||||
}
|
||||
else
|
||||
{
|
||||
d_preamble_init.pop_front();
|
||||
}
|
||||
}
|
||||
}
|
||||
d_sample_counter++; // count for the processed samples
|
||||
consume_each(1);
|
||||
|
||||
d_flag_preamble = false;
|
||||
|
||||
if ((d_symbol_history.size() > required_symbols) && new_symbol)
|
||||
{
|
||||
// ****************** Preamble orrelation ******************
|
||||
corr_value = 0;
|
||||
for (int32_t i = 0; i < GALILEO_FNAV_PREAMBLE_LENGTH_BITS; i++)
|
||||
{
|
||||
if (d_symbol_history.at(i).Prompt_I < 0.0) // symbols clipping
|
||||
{
|
||||
corr_value -= d_preambles_bits[i];
|
||||
}
|
||||
else
|
||||
{
|
||||
corr_value += d_preambles_bits[i];
|
||||
}
|
||||
}
|
||||
}
|
||||
// ****************** Frame sync ******************
|
||||
if ((d_stat == 0) && new_symbol) // no preamble information
|
||||
{
|
||||
if (abs(corr_value) == GALILEO_FNAV_PREAMBLE_LENGTH_BITS)
|
||||
{
|
||||
d_preamble_index = d_sample_counter; // record the preamble sample stamp
|
||||
LOG(INFO) << "Preamble detection for Galileo E5a satellite " << d_satellite;
|
||||
d_stat = 1; // enter into frame pre-detection status
|
||||
}
|
||||
}
|
||||
else if ((d_stat == 1) && new_symbol) // possible preamble lock
|
||||
{
|
||||
if (abs(corr_value) == GALILEO_FNAV_PREAMBLE_LENGTH_BITS)
|
||||
{
|
||||
// check preamble separation
|
||||
preamble_diff = static_cast<int32_t>(d_sample_counter - d_preamble_index);
|
||||
if (preamble_diff == GALILEO_FNAV_CODES_PER_PAGE)
|
||||
{
|
||||
// try to decode frame
|
||||
LOG(INFO) << "Starting page decoder for Galileo E5a satellite " << d_satellite;
|
||||
d_preamble_index = d_sample_counter; // record the preamble sample stamp
|
||||
d_stat = 2;
|
||||
}
|
||||
else if (preamble_diff > GALILEO_FNAV_CODES_PER_PAGE)
|
||||
{
|
||||
d_stat = 0; // start again
|
||||
flag_bit_start = false;
|
||||
LOG(INFO) << "Preamble diff = " << preamble_diff;
|
||||
}
|
||||
}
|
||||
}
|
||||
else if ((d_stat == 2) && new_symbol)
|
||||
{
|
||||
if (d_sample_counter == (d_preamble_index + static_cast<uint64_t>(GALILEO_FNAV_CODES_PER_PAGE)))
|
||||
{
|
||||
// NEW Galileo page part is received
|
||||
// 0. fetch the symbols into an array
|
||||
int32_t frame_length = GALILEO_FNAV_SYMBOLS_PER_PAGE - GALILEO_FNAV_PREAMBLE_LENGTH_BITS;
|
||||
double corr_sign = 0.0;
|
||||
if (corr_value > 0)
|
||||
{
|
||||
corr_sign = -1.0;
|
||||
}
|
||||
else
|
||||
{
|
||||
corr_sign = 1.0;
|
||||
}
|
||||
for (int32_t i = 0; i < frame_length; i++)
|
||||
{
|
||||
page_symbols[i] = corr_sign * d_symbol_history.at(i + GALILEO_FNAV_PREAMBLE_LENGTH_BITS).Prompt_I; // because last symbol of the preamble is just received now!
|
||||
}
|
||||
|
||||
// call the decoder
|
||||
decode_word(page_symbols, frame_length);
|
||||
if (d_nav.flag_CRC_test == true)
|
||||
{
|
||||
d_CRC_error_counter = 0;
|
||||
d_flag_preamble = true; // valid preamble indicator (initialized to false every work())
|
||||
d_preamble_index = d_sample_counter; // record the preamble sample stamp (t_P)
|
||||
if (!d_flag_frame_sync)
|
||||
{
|
||||
d_flag_frame_sync = true;
|
||||
DLOG(INFO) << " Frame sync SAT " << this->d_satellite << " with preamble start at "
|
||||
<< d_symbol_history.at(0).Tracking_sample_counter << " [samples]";
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
d_CRC_error_counter++;
|
||||
d_preamble_index = d_sample_counter; // record the preamble sample stamp
|
||||
if (d_CRC_error_counter > GALILEO_E5A_CRC_ERROR_LIMIT)
|
||||
{
|
||||
LOG(INFO) << "Lost of frame sync SAT " << this->d_satellite;
|
||||
d_flag_frame_sync = false;
|
||||
d_stat = 0;
|
||||
flag_bit_start = false;
|
||||
d_nav.flag_TOW_set = false;
|
||||
d_TOW_at_current_symbol_ms = 0;
|
||||
d_TOW_at_Preamble_ms = 0;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
new_symbol = false;
|
||||
|
||||
// UPDATE GNSS SYNCHRO DATA
|
||||
// Add the telemetry decoder information
|
||||
if (d_flag_preamble and d_nav.flag_TOW_set)
|
||||
// update TOW at the preamble instant
|
||||
// We expect a preamble each 10 seconds (FNAV page period)
|
||||
{
|
||||
if (d_nav.flag_TOW_1 == true)
|
||||
{
|
||||
d_TOW_at_Preamble_ms = static_cast<uint32_t>(d_nav.FNAV_TOW_1 * 1000.0);
|
||||
d_TOW_at_current_symbol_ms = d_TOW_at_Preamble_ms + static_cast<uint32_t>((GALILEO_FNAV_CODES_PER_PAGE + GALILEO_FNAV_CODES_PER_PREAMBLE) * GALILEO_E5a_CODE_PERIOD_MS);
|
||||
d_nav.flag_TOW_1 = false;
|
||||
}
|
||||
else if (d_nav.flag_TOW_2 == true)
|
||||
{
|
||||
d_TOW_at_Preamble_ms = static_cast<uint32_t>(d_nav.FNAV_TOW_2 * 1000.0);
|
||||
d_TOW_at_current_symbol_ms = d_TOW_at_Preamble_ms + static_cast<uint32_t>((GALILEO_FNAV_CODES_PER_PAGE + GALILEO_FNAV_CODES_PER_PREAMBLE) * GALILEO_E5a_CODE_PERIOD_MS);
|
||||
d_nav.flag_TOW_2 = false;
|
||||
}
|
||||
else if (d_nav.flag_TOW_3 == true)
|
||||
{
|
||||
d_TOW_at_Preamble_ms = static_cast<uint32_t>(d_nav.FNAV_TOW_3 * 1000.0);
|
||||
d_TOW_at_current_symbol_ms = d_TOW_at_Preamble_ms + static_cast<uint32_t>((GALILEO_FNAV_CODES_PER_PAGE + GALILEO_FNAV_CODES_PER_PREAMBLE) * GALILEO_E5a_CODE_PERIOD_MS);
|
||||
d_nav.flag_TOW_3 = false;
|
||||
}
|
||||
else if (d_nav.flag_TOW_4 == true)
|
||||
{
|
||||
d_TOW_at_Preamble_ms = static_cast<uint32_t>(d_nav.FNAV_TOW_4 * 1000.0);
|
||||
d_TOW_at_current_symbol_ms = d_TOW_at_Preamble_ms + static_cast<uint32_t>((GALILEO_FNAV_CODES_PER_PAGE + GALILEO_FNAV_CODES_PER_PREAMBLE) * GALILEO_E5a_CODE_PERIOD_MS);
|
||||
d_nav.flag_TOW_4 = false;
|
||||
}
|
||||
else
|
||||
{
|
||||
d_TOW_at_current_symbol_ms += static_cast<uint32_t>(GALILEO_E5a_CODE_PERIOD_MS);
|
||||
}
|
||||
}
|
||||
else // if there is not a new preamble, we define the TOW of the current symbol
|
||||
{
|
||||
if (d_nav.flag_TOW_set == true)
|
||||
{
|
||||
d_TOW_at_current_symbol_ms += static_cast<uint32_t>(GALILEO_E5a_CODE_PERIOD_MS);
|
||||
}
|
||||
}
|
||||
|
||||
// remove used symbols from history
|
||||
// todo: Use circular buffer here
|
||||
while (d_symbol_history.size() > required_symbols)
|
||||
{
|
||||
d_symbol_history.pop_front();
|
||||
}
|
||||
|
||||
if (d_nav.flag_TOW_set)
|
||||
{
|
||||
current_sample.Flag_valid_word = true;
|
||||
current_sample.TOW_at_current_symbol_ms = d_TOW_at_current_symbol_ms;
|
||||
if (d_dump)
|
||||
{
|
||||
// MULTIPLEXED FILE RECORDING - Record results to file
|
||||
try
|
||||
{
|
||||
double tmp_double;
|
||||
uint64_t tmp_ulong_int;
|
||||
tmp_double = static_cast<double>(d_TOW_at_current_symbol_ms) / 1000.0;
|
||||
d_dump_file.write(reinterpret_cast<char *>(&tmp_double), sizeof(double));
|
||||
tmp_ulong_int = current_sample.Tracking_sample_counter;
|
||||
d_dump_file.write(reinterpret_cast<char *>(&tmp_ulong_int), sizeof(uint64_t));
|
||||
tmp_double = static_cast<double>(d_TOW_at_Preamble_ms) / 1000.0;
|
||||
d_dump_file.write(reinterpret_cast<char *>(&tmp_double), sizeof(double));
|
||||
}
|
||||
catch (const std::ifstream::failure &e)
|
||||
{
|
||||
LOG(WARNING) << "Exception writing Galileo E5a Telemetry Decoder dump file " << e.what();
|
||||
}
|
||||
}
|
||||
// 3. Make the output
|
||||
out[0] = current_sample;
|
||||
return 1;
|
||||
}
|
||||
else
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
}
|
||||
|
|
@ -1,127 +0,0 @@
|
|||
/*!
|
||||
* \file galileo_e5a_telemetry_decoder_cc.cc
|
||||
* \brief Implementation of a Galileo FNAV message demodulator block
|
||||
* \author Marc Sales, 2014. marcsales92(at)gmail.com
|
||||
* Javier Arribas, 2017. jarribas(at)cttc.es
|
||||
* \based on work from:
|
||||
* <ul>
|
||||
* <li> Javier Arribas, 2011. jarribas(at)cttc.es
|
||||
* </ul>
|
||||
*
|
||||
*
|
||||
* -------------------------------------------------------------------------
|
||||
*
|
||||
* Copyright (C) 2010-2018 (see AUTHORS file for a list of contributors)
|
||||
*
|
||||
* GNSS-SDR is a software defined Global Navigation
|
||||
* Satellite Systems receiver
|
||||
*
|
||||
* This file is part of GNSS-SDR.
|
||||
*
|
||||
* GNSS-SDR is free software: you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation, either version 3 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* GNSS-SDR is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with GNSS-SDR. If not, see <https://www.gnu.org/licenses/>.
|
||||
*
|
||||
* -------------------------------------------------------------------------
|
||||
*/
|
||||
|
||||
#ifndef GNSS_SDR_GALILEO_E5A_TELEMETRY_DECODER_CC_H_
|
||||
#define GNSS_SDR_GALILEO_E5A_TELEMETRY_DECODER_CC_H_
|
||||
|
||||
#include "Galileo_E5a.h"
|
||||
#include "gnss_satellite.h"
|
||||
#include "galileo_fnav_message.h"
|
||||
#include "galileo_ephemeris.h"
|
||||
#include "galileo_almanac.h"
|
||||
#include "galileo_iono.h"
|
||||
#include "galileo_utc_model.h"
|
||||
#include "gnss_synchro.h"
|
||||
#include <gnuradio/block.h>
|
||||
#include <deque>
|
||||
#include <fstream>
|
||||
#include <string>
|
||||
|
||||
|
||||
class galileo_e5a_telemetry_decoder_cc;
|
||||
|
||||
typedef boost::shared_ptr<galileo_e5a_telemetry_decoder_cc> galileo_e5a_telemetry_decoder_cc_sptr;
|
||||
|
||||
galileo_e5a_telemetry_decoder_cc_sptr galileo_e5a_make_telemetry_decoder_cc(const Gnss_Satellite &satellite, bool dump);
|
||||
|
||||
|
||||
/*!
|
||||
* \brief This class implements a block that decodes the FNAV data defined in Galileo ICD
|
||||
*
|
||||
*/
|
||||
class galileo_e5a_telemetry_decoder_cc : public gr::block
|
||||
{
|
||||
public:
|
||||
~galileo_e5a_telemetry_decoder_cc();
|
||||
void set_satellite(const Gnss_Satellite &satellite); //!< Set satellite PRN
|
||||
void set_channel(int32_t channel); //!< Set receiver's channel
|
||||
/*!
|
||||
* \brief This is where all signal processing takes place
|
||||
*/
|
||||
int general_work(int noutput_items, gr_vector_int &ninput_items,
|
||||
gr_vector_const_void_star &input_items, gr_vector_void_star &output_items);
|
||||
|
||||
private:
|
||||
friend galileo_e5a_telemetry_decoder_cc_sptr
|
||||
galileo_e5a_make_telemetry_decoder_cc(const Gnss_Satellite &satellite, bool dump);
|
||||
galileo_e5a_telemetry_decoder_cc(const Gnss_Satellite &satellite, bool dump);
|
||||
|
||||
void viterbi_decoder(double *page_part_symbols, int32_t *page_part_bits);
|
||||
|
||||
void deinterleaver(int32_t rows, int32_t cols, double *in, double *out);
|
||||
|
||||
void decode_word(double *page_symbols, int32_t frame_length);
|
||||
|
||||
int32_t d_preambles_bits[GALILEO_FNAV_PREAMBLE_LENGTH_BITS];
|
||||
int32_t d_preamble_samples[GALILEO_FNAV_CODES_PER_PREAMBLE];
|
||||
std::deque<int> d_preamble_init;
|
||||
int32_t d_stat;
|
||||
int32_t d_CRC_error_counter;
|
||||
int32_t d_channel;
|
||||
int32_t d_symbol_counter;
|
||||
int32_t corr_value;
|
||||
uint32_t required_symbols;
|
||||
uint64_t d_sample_counter;
|
||||
uint64_t d_preamble_index;
|
||||
bool d_flag_frame_sync;
|
||||
bool d_flag_preamble;
|
||||
bool d_dump;
|
||||
bool flag_TOW_set;
|
||||
bool flag_bit_start;
|
||||
bool new_symbol;
|
||||
double d_prompt_acum;
|
||||
double page_symbols[GALILEO_FNAV_SYMBOLS_PER_PAGE - GALILEO_FNAV_PREAMBLE_LENGTH_BITS];
|
||||
uint32_t d_TOW_at_Preamble_ms;
|
||||
uint32_t d_TOW_at_current_symbol_ms;
|
||||
double delta_t; //GPS-GALILEO time offset
|
||||
std::string d_dump_filename;
|
||||
std::ofstream d_dump_file;
|
||||
std::deque<Gnss_Synchro> d_symbol_history;
|
||||
Gnss_Satellite d_satellite;
|
||||
// navigation message vars
|
||||
Galileo_Fnav_Message d_nav;
|
||||
|
||||
// vars for Viterbi decoder
|
||||
int32_t *out0, *out1, *state0, *state1;
|
||||
int32_t g_encoder[2];
|
||||
const int32_t nn = 2; // Coding rate 1/n
|
||||
const int32_t KK = 7; // Constraint Length
|
||||
int32_t mm = KK - 1;
|
||||
const int32_t CodeLength = 488;
|
||||
int32_t DataLength = (CodeLength / nn) - mm;
|
||||
};
|
||||
|
||||
#endif /* GNSS_SDR_GALILEO_E5A_TELEMETRY_DECODER_CC_H_ */
|
||||
|
|
@ -0,0 +1,780 @@
|
|||
/*!
|
||||
* \file galileo_telemetry_decoder_cc.cc
|
||||
* \brief Implementation of a Galileo unified INAV and FNAV message demodulator block
|
||||
* \author Javier Arribas 2018. jarribas(at)cttc.es
|
||||
*
|
||||
* -------------------------------------------------------------------------
|
||||
*
|
||||
* Copyright (C) 2010-2018 (see AUTHORS file for a list of contributors)
|
||||
*
|
||||
* GNSS-SDR is a software defined Global Navigation
|
||||
* Satellite Systems receiver
|
||||
*
|
||||
* This file is part of GNSS-SDR.
|
||||
*
|
||||
* GNSS-SDR is free software: you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation, either version 3 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* GNSS-SDR is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with GNSS-SDR. If not, see <https://www.gnu.org/licenses/>.
|
||||
*
|
||||
* -------------------------------------------------------------------------
|
||||
*/
|
||||
|
||||
|
||||
#include "galileo_telemetry_decoder_cc.h"
|
||||
#include "control_message_factory.h"
|
||||
#include "convolutional.h"
|
||||
#include "display.h"
|
||||
#include "gnss_synchro.h"
|
||||
#include <boost/lexical_cast.hpp>
|
||||
#include <gnuradio/io_signature.h>
|
||||
#include <glog/logging.h>
|
||||
#include <volk_gnsssdr/volk_gnsssdr.h>
|
||||
#include <iostream>
|
||||
|
||||
|
||||
#define CRC_ERROR_LIMIT 6
|
||||
|
||||
using google::LogMessage;
|
||||
|
||||
|
||||
galileo_telemetry_decoder_cc_sptr
|
||||
galileo_make_telemetry_decoder_cc(const Gnss_Satellite &satellite, int frame_type, bool dump)
|
||||
{
|
||||
return galileo_telemetry_decoder_cc_sptr(new galileo_telemetry_decoder_cc(satellite, frame_type, dump));
|
||||
}
|
||||
|
||||
|
||||
void galileo_telemetry_decoder_cc::viterbi_decoder(double *page_part_symbols, int32_t *page_part_bits)
|
||||
{
|
||||
Viterbi(page_part_bits, out0, state0, out1, state1,
|
||||
page_part_symbols, KK, nn, DataLength);
|
||||
}
|
||||
|
||||
|
||||
void galileo_telemetry_decoder_cc::deinterleaver(int32_t rows, int32_t cols, double *in, double *out)
|
||||
{
|
||||
for (int32_t r = 0; r < rows; r++)
|
||||
{
|
||||
for (int32_t c = 0; c < cols; c++)
|
||||
{
|
||||
out[c * rows + r] = in[r * cols + c];
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
galileo_telemetry_decoder_cc::galileo_telemetry_decoder_cc(
|
||||
const Gnss_Satellite &satellite, int frame_type,
|
||||
bool dump) : gr::block("galileo_telemetry_decoder_cc", gr::io_signature::make(1, 1, sizeof(Gnss_Synchro)),
|
||||
gr::io_signature::make(1, 1, sizeof(Gnss_Synchro)))
|
||||
{
|
||||
// Ephemeris data port out
|
||||
this->message_port_register_out(pmt::mp("telemetry"));
|
||||
// initialize internal vars
|
||||
d_dump = dump;
|
||||
d_satellite = Gnss_Satellite(satellite.get_system(), satellite.get_PRN());
|
||||
d_frame_type = frame_type;
|
||||
LOG(INFO) << "Initializing GALILEO UNIFIED TELEMETRY DECODER";
|
||||
|
||||
switch (d_frame_type)
|
||||
{
|
||||
case 1: //INAV
|
||||
{
|
||||
d_PRN_code_period_ms = static_cast<uint32_t>(GALILEO_E1_CODE_PERIOD_MS);
|
||||
d_samples_per_symbol = Galileo_E1_B_SAMPLES_PER_SYMBOL;
|
||||
d_bits_per_preamble = GALILEO_INAV_PREAMBLE_LENGTH_BITS;
|
||||
// set the preamble
|
||||
d_samples_per_preamble = GALILEO_INAV_PREAMBLE_LENGTH_BITS * d_samples_per_symbol;
|
||||
d_preamble_period_symbols = GALILEO_INAV_PREAMBLE_PERIOD_SYMBOLS;
|
||||
d_required_symbols = static_cast<uint32_t>(GALILEO_INAV_PAGE_SYMBOLS) + d_samples_per_preamble;
|
||||
// preamble bits to sampled symbols
|
||||
d_preamble_samples = static_cast<int32_t *>(volk_gnsssdr_malloc(d_samples_per_preamble * sizeof(int32_t), volk_gnsssdr_get_alignment()));
|
||||
d_frame_length_symbols = GALILEO_INAV_PAGE_PART_SYMBOLS - GALILEO_INAV_PREAMBLE_LENGTH_BITS;
|
||||
CodeLength = GALILEO_INAV_PAGE_PART_SYMBOLS - GALILEO_INAV_PREAMBLE_LENGTH_BITS;
|
||||
DataLength = (CodeLength / nn) - mm;
|
||||
break;
|
||||
}
|
||||
case 2: //FNAV
|
||||
{
|
||||
d_PRN_code_period_ms = static_cast<uint32_t>(GALILEO_E5a_CODE_PERIOD_MS);
|
||||
d_samples_per_symbol = GALILEO_FNAV_CODES_PER_SYMBOL;
|
||||
d_bits_per_preamble = GALILEO_FNAV_PREAMBLE_LENGTH_BITS;
|
||||
// set the preamble
|
||||
d_samples_per_preamble = GALILEO_FNAV_PREAMBLE_LENGTH_BITS * d_samples_per_symbol;
|
||||
d_preamble_period_symbols = GALILEO_FNAV_CODES_PER_PAGE;
|
||||
d_required_symbols = static_cast<uint32_t>(GALILEO_FNAV_SYMBOLS_PER_PAGE) * d_samples_per_symbol + d_samples_per_preamble;
|
||||
// preamble bits to sampled symbols
|
||||
d_preamble_samples = static_cast<int32_t *>(volk_gnsssdr_malloc(d_samples_per_preamble * sizeof(int32_t), volk_gnsssdr_get_alignment()));
|
||||
|
||||
d_secondary_code_samples = static_cast<int32_t *>(volk_gnsssdr_malloc(Galileo_E5a_I_SECONDARY_CODE_LENGTH * sizeof(int32_t), volk_gnsssdr_get_alignment()));
|
||||
d_frame_length_symbols = GALILEO_FNAV_SYMBOLS_PER_PAGE - GALILEO_FNAV_PREAMBLE_LENGTH_BITS;
|
||||
CodeLength = GALILEO_FNAV_SYMBOLS_PER_PAGE - GALILEO_FNAV_PREAMBLE_LENGTH_BITS;
|
||||
DataLength = (CodeLength / nn) - mm;
|
||||
for (int32_t i = 0; i < Galileo_E5a_I_SECONDARY_CODE_LENGTH; i++)
|
||||
{
|
||||
if (Galileo_E5a_I_SECONDARY_CODE.at(i) == '1')
|
||||
{
|
||||
d_secondary_code_samples[i] = 1;
|
||||
}
|
||||
else
|
||||
{
|
||||
d_secondary_code_samples[i] = -1;
|
||||
}
|
||||
}
|
||||
break;
|
||||
}
|
||||
default:
|
||||
std::cout << "Galileo unified telemetry decoder error: Unknown frame type " << std::endl;
|
||||
}
|
||||
|
||||
d_page_part_symbols = static_cast<double *>(volk_gnsssdr_malloc(d_frame_length_symbols * sizeof(double), volk_gnsssdr_get_alignment()));
|
||||
int32_t n = 0;
|
||||
for (int32_t i = 0; i < d_bits_per_preamble; i++)
|
||||
{
|
||||
switch (d_frame_type)
|
||||
{
|
||||
case 1: //INAV
|
||||
{
|
||||
if (GALILEO_INAV_PREAMBLE.at(i) == '1')
|
||||
{
|
||||
for (uint32_t j = 0; j < d_samples_per_symbol; j++)
|
||||
{
|
||||
d_preamble_samples[n] = 1;
|
||||
n++;
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
for (uint32_t j = 0; j < d_samples_per_symbol; j++)
|
||||
{
|
||||
d_preamble_samples[n] = -1;
|
||||
n++;
|
||||
}
|
||||
}
|
||||
break;
|
||||
}
|
||||
case 2: //FNAV for E5a-I
|
||||
{
|
||||
// Galileo E5a data channel (E5a-I) still has a secondary code
|
||||
int m = 0;
|
||||
if (GALILEO_FNAV_PREAMBLE.at(i) == '1')
|
||||
{
|
||||
for (uint32_t j = 0; j < d_samples_per_symbol; j++)
|
||||
{
|
||||
d_preamble_samples[n] = d_secondary_code_samples[m];
|
||||
n++;
|
||||
m++;
|
||||
m = m % Galileo_E5a_I_SECONDARY_CODE_LENGTH;
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
for (uint32_t j = 0; j < d_samples_per_symbol; j++)
|
||||
{
|
||||
d_preamble_samples[n] = -d_secondary_code_samples[m];
|
||||
n++;
|
||||
m++;
|
||||
m = m % Galileo_E5a_I_SECONDARY_CODE_LENGTH;
|
||||
}
|
||||
}
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
d_sample_counter = 0ULL;
|
||||
d_stat = 0;
|
||||
d_preamble_index = 0ULL;
|
||||
|
||||
d_flag_frame_sync = false;
|
||||
|
||||
d_flag_parity = false;
|
||||
d_TOW_at_current_symbol_ms = 0;
|
||||
d_TOW_at_Preamble_ms = 0;
|
||||
delta_t = 0;
|
||||
d_CRC_error_counter = 0;
|
||||
flag_even_word_arrived = 0;
|
||||
d_flag_preamble = false;
|
||||
d_channel = 0;
|
||||
flag_TOW_set = false;
|
||||
|
||||
// vars for Viterbi decoder
|
||||
int32_t max_states = 1 << mm; // 2^mm
|
||||
g_encoder[0] = 121; // Polynomial G1
|
||||
g_encoder[1] = 91; // Polynomial G2
|
||||
out0 = static_cast<int32_t *>(volk_gnsssdr_malloc(max_states * sizeof(int32_t), volk_gnsssdr_get_alignment()));
|
||||
out1 = static_cast<int32_t *>(volk_gnsssdr_malloc(max_states * sizeof(int32_t), volk_gnsssdr_get_alignment()));
|
||||
state0 = static_cast<int32_t *>(volk_gnsssdr_malloc(max_states * sizeof(int32_t), volk_gnsssdr_get_alignment()));
|
||||
state1 = static_cast<int32_t *>(volk_gnsssdr_malloc(max_states * sizeof(int32_t), volk_gnsssdr_get_alignment()));
|
||||
// create appropriate transition matrices
|
||||
nsc_transit(out0, state0, 0, g_encoder, KK, nn);
|
||||
nsc_transit(out1, state1, 1, g_encoder, KK, nn);
|
||||
}
|
||||
|
||||
|
||||
galileo_telemetry_decoder_cc::~galileo_telemetry_decoder_cc()
|
||||
{
|
||||
volk_gnsssdr_free(d_preamble_samples);
|
||||
if (d_frame_type == 2)
|
||||
{
|
||||
volk_gnsssdr_free(d_secondary_code_samples);
|
||||
}
|
||||
volk_gnsssdr_free(d_page_part_symbols);
|
||||
volk_gnsssdr_free(out0);
|
||||
volk_gnsssdr_free(out1);
|
||||
volk_gnsssdr_free(state0);
|
||||
volk_gnsssdr_free(state1);
|
||||
if (d_dump_file.is_open() == true)
|
||||
{
|
||||
try
|
||||
{
|
||||
d_dump_file.close();
|
||||
}
|
||||
catch (const std::exception &ex)
|
||||
{
|
||||
LOG(WARNING) << "Exception in destructor closing the dump file " << ex.what();
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
void galileo_telemetry_decoder_cc::decode_INAV_word(double *page_part_symbols, int32_t frame_length)
|
||||
{
|
||||
// 1. De-interleave
|
||||
double *page_part_symbols_deint = static_cast<double *>(volk_gnsssdr_malloc(frame_length * sizeof(double), volk_gnsssdr_get_alignment()));
|
||||
deinterleaver(GALILEO_INAV_INTERLEAVER_ROWS, GALILEO_INAV_INTERLEAVER_COLS, page_part_symbols, page_part_symbols_deint);
|
||||
|
||||
// 2. Viterbi decoder
|
||||
// 2.1 Take into account the NOT gate in G2 polynomial (Galileo ICD Figure 13, FEC encoder)
|
||||
// 2.2 Take into account the possible inversion of the polarity due to PLL lock at 180º
|
||||
for (int32_t i = 0; i < frame_length; i++)
|
||||
{
|
||||
if ((i + 1) % 2 == 0)
|
||||
{
|
||||
page_part_symbols_deint[i] = -page_part_symbols_deint[i];
|
||||
}
|
||||
}
|
||||
|
||||
int32_t *page_part_bits = static_cast<int32_t *>(volk_gnsssdr_malloc((frame_length / 2) * sizeof(int32_t), volk_gnsssdr_get_alignment()));
|
||||
viterbi_decoder(page_part_symbols_deint, page_part_bits);
|
||||
volk_gnsssdr_free(page_part_symbols_deint);
|
||||
|
||||
// 3. Call the Galileo page decoder
|
||||
std::string page_String;
|
||||
for (int32_t i = 0; i < (frame_length / 2); i++)
|
||||
{
|
||||
if (page_part_bits[i] > 0)
|
||||
{
|
||||
page_String.push_back('1');
|
||||
}
|
||||
else
|
||||
{
|
||||
page_String.push_back('0');
|
||||
}
|
||||
}
|
||||
|
||||
if (page_part_bits[0] == 1)
|
||||
{
|
||||
// DECODE COMPLETE WORD (even + odd) and TEST CRC
|
||||
d_inav_nav.split_page(page_String, flag_even_word_arrived);
|
||||
if (d_inav_nav.flag_CRC_test == true)
|
||||
{
|
||||
LOG(INFO) << "Galileo E1 CRC correct in channel " << d_channel << " from satellite " << d_satellite;
|
||||
}
|
||||
else
|
||||
{
|
||||
LOG(INFO) << "Galileo E1 CRC error in channel " << d_channel << " from satellite " << d_satellite;
|
||||
}
|
||||
flag_even_word_arrived = 0;
|
||||
}
|
||||
else
|
||||
{
|
||||
// STORE HALF WORD (even page)
|
||||
d_inav_nav.split_page(page_String.c_str(), flag_even_word_arrived);
|
||||
flag_even_word_arrived = 1;
|
||||
}
|
||||
volk_gnsssdr_free(page_part_bits);
|
||||
|
||||
// 4. Push the new navigation data to the queues
|
||||
if (d_inav_nav.have_new_ephemeris() == true)
|
||||
{
|
||||
// get object for this SV (mandatory)
|
||||
std::shared_ptr<Galileo_Ephemeris> tmp_obj = std::make_shared<Galileo_Ephemeris>(d_inav_nav.get_ephemeris());
|
||||
std::cout << "New Galileo E1 I/NAV message received in channel " << d_channel << ": ephemeris from satellite " << d_satellite << std::endl;
|
||||
this->message_port_pub(pmt::mp("telemetry"), pmt::make_any(tmp_obj));
|
||||
}
|
||||
if (d_inav_nav.have_new_iono_and_GST() == true)
|
||||
{
|
||||
// get object for this SV (mandatory)
|
||||
std::shared_ptr<Galileo_Iono> tmp_obj = std::make_shared<Galileo_Iono>(d_inav_nav.get_iono());
|
||||
std::cout << "New Galileo E1 I/NAV message received in channel " << d_channel << ": iono/GST model parameters from satellite " << d_satellite << std::endl;
|
||||
this->message_port_pub(pmt::mp("telemetry"), pmt::make_any(tmp_obj));
|
||||
}
|
||||
if (d_inav_nav.have_new_utc_model() == true)
|
||||
{
|
||||
// get object for this SV (mandatory)
|
||||
std::shared_ptr<Galileo_Utc_Model> tmp_obj = std::make_shared<Galileo_Utc_Model>(d_inav_nav.get_utc_model());
|
||||
std::cout << "New Galileo E1 I/NAV message received in channel " << d_channel << ": UTC model parameters from satellite " << d_satellite << std::endl;
|
||||
this->message_port_pub(pmt::mp("telemetry"), pmt::make_any(tmp_obj));
|
||||
}
|
||||
if (d_inav_nav.have_new_almanac() == true)
|
||||
{
|
||||
std::shared_ptr<Galileo_Almanac> tmp_obj = std::make_shared<Galileo_Almanac>(d_inav_nav.get_almanac());
|
||||
this->message_port_pub(pmt::mp("telemetry"), pmt::make_any(tmp_obj));
|
||||
//debug
|
||||
std::cout << "Galileo E1 I/NAV almanac received in channel " << d_channel << " from satellite " << d_satellite << std::endl;
|
||||
DLOG(INFO) << "GPS_to_Galileo time conversion:";
|
||||
DLOG(INFO) << "A0G=" << tmp_obj->A_0G_10;
|
||||
DLOG(INFO) << "A1G=" << tmp_obj->A_1G_10;
|
||||
DLOG(INFO) << "T0G=" << tmp_obj->t_0G_10;
|
||||
DLOG(INFO) << "WN_0G_10=" << tmp_obj->WN_0G_10;
|
||||
DLOG(INFO) << "Current parameters:";
|
||||
DLOG(INFO) << "d_TOW_at_current_symbol_ms=" << d_TOW_at_current_symbol_ms;
|
||||
DLOG(INFO) << "d_nav.WN_0=" << d_inav_nav.WN_0;
|
||||
delta_t = tmp_obj->A_0G_10 + tmp_obj->A_1G_10 * (static_cast<double>(d_TOW_at_current_symbol_ms) / 1000.0 - tmp_obj->t_0G_10 + 604800 * (fmod((d_inav_nav.WN_0 - tmp_obj->WN_0G_10), 64)));
|
||||
DLOG(INFO) << "delta_t=" << delta_t << "[s]";
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
void galileo_telemetry_decoder_cc::decode_FNAV_word(double *page_symbols, int32_t frame_length)
|
||||
{
|
||||
// 1. De-interleave
|
||||
double *page_symbols_deint = static_cast<double *>(volk_gnsssdr_malloc(frame_length * sizeof(double), volk_gnsssdr_get_alignment()));
|
||||
deinterleaver(GALILEO_FNAV_INTERLEAVER_ROWS, GALILEO_FNAV_INTERLEAVER_COLS, page_symbols, page_symbols_deint);
|
||||
|
||||
// 2. Viterbi decoder
|
||||
// 2.1 Take into account the NOT gate in G2 polynomial (Galileo ICD Figure 13, FEC encoder)
|
||||
// 2.2 Take into account the possible inversion of the polarity due to PLL lock at 180<38>
|
||||
for (int32_t i = 0; i < frame_length; i++)
|
||||
{
|
||||
if ((i + 1) % 2 == 0)
|
||||
{
|
||||
page_symbols_deint[i] = -page_symbols_deint[i];
|
||||
}
|
||||
}
|
||||
int32_t *page_bits = static_cast<int32_t *>(volk_gnsssdr_malloc((frame_length / 2) * sizeof(int32_t), volk_gnsssdr_get_alignment()));
|
||||
viterbi_decoder(page_symbols_deint, page_bits);
|
||||
volk_gnsssdr_free(page_symbols_deint);
|
||||
|
||||
// 3. Call the Galileo page decoder
|
||||
std::string page_String;
|
||||
for (int32_t i = 0; i < frame_length; i++)
|
||||
{
|
||||
if (page_bits[i] > 0)
|
||||
{
|
||||
page_String.push_back('1');
|
||||
}
|
||||
else
|
||||
{
|
||||
page_String.push_back('0');
|
||||
}
|
||||
}
|
||||
volk_gnsssdr_free(page_bits);
|
||||
|
||||
// DECODE COMPLETE WORD (even + odd) and TEST CRC
|
||||
d_fnav_nav.split_page(page_String);
|
||||
if (d_fnav_nav.flag_CRC_test == true)
|
||||
{
|
||||
LOG(INFO) << "Galileo E5a CRC correct in channel " << d_channel << " from satellite " << d_satellite;
|
||||
}
|
||||
else
|
||||
{
|
||||
LOG(INFO) << "Galileo E5a CRC error in channel " << d_channel << " from satellite " << d_satellite;
|
||||
}
|
||||
|
||||
// 4. Push the new navigation data to the queues
|
||||
if (d_fnav_nav.have_new_ephemeris() == true)
|
||||
{
|
||||
std::shared_ptr<Galileo_Ephemeris> tmp_obj = std::make_shared<Galileo_Ephemeris>(d_fnav_nav.get_ephemeris());
|
||||
std::cout << TEXT_MAGENTA << "New Galileo E5a F/NAV message received in channel " << d_channel << ": ephemeris from satellite " << d_satellite << TEXT_RESET << std::endl;
|
||||
this->message_port_pub(pmt::mp("telemetry"), pmt::make_any(tmp_obj));
|
||||
}
|
||||
if (d_fnav_nav.have_new_iono_and_GST() == true)
|
||||
{
|
||||
std::shared_ptr<Galileo_Iono> tmp_obj = std::make_shared<Galileo_Iono>(d_fnav_nav.get_iono());
|
||||
std::cout << TEXT_MAGENTA << "New Galileo E5a F/NAV message received in channel " << d_channel << ": iono/GST model parameters from satellite " << d_satellite << TEXT_RESET << std::endl;
|
||||
this->message_port_pub(pmt::mp("telemetry"), pmt::make_any(tmp_obj));
|
||||
}
|
||||
if (d_fnav_nav.have_new_utc_model() == true)
|
||||
{
|
||||
std::shared_ptr<Galileo_Utc_Model> tmp_obj = std::make_shared<Galileo_Utc_Model>(d_fnav_nav.get_utc_model());
|
||||
std::cout << TEXT_MAGENTA << "New Galileo E5a F/NAV message received in channel " << d_channel << ": UTC model parameters from satellite " << d_satellite << TEXT_RESET << std::endl;
|
||||
this->message_port_pub(pmt::mp("telemetry"), pmt::make_any(tmp_obj));
|
||||
}
|
||||
}
|
||||
|
||||
void galileo_telemetry_decoder_cc::set_satellite(const Gnss_Satellite &satellite)
|
||||
{
|
||||
d_satellite = Gnss_Satellite(satellite.get_system(), satellite.get_PRN());
|
||||
DLOG(INFO) << "Setting decoder Finite State Machine to satellite " << d_satellite;
|
||||
DLOG(INFO) << "Navigation Satellite set to " << d_satellite;
|
||||
}
|
||||
|
||||
|
||||
void galileo_telemetry_decoder_cc::set_channel(int32_t channel)
|
||||
{
|
||||
d_channel = channel;
|
||||
LOG(INFO) << "Navigation channel set to " << channel;
|
||||
// ############# ENABLE DATA FILE LOG #################
|
||||
if (d_dump == true)
|
||||
{
|
||||
if (d_dump_file.is_open() == false)
|
||||
{
|
||||
try
|
||||
{
|
||||
d_dump_filename = "telemetry";
|
||||
d_dump_filename.append(boost::lexical_cast<std::string>(d_channel));
|
||||
d_dump_filename.append(".dat");
|
||||
d_dump_file.exceptions(std::ifstream::failbit | std::ifstream::badbit);
|
||||
d_dump_file.open(d_dump_filename.c_str(), std::ios::out | std::ios::binary);
|
||||
LOG(INFO) << "Telemetry decoder dump enabled on channel " << d_channel << " Log file: " << d_dump_filename.c_str();
|
||||
}
|
||||
catch (const std::ifstream::failure &e)
|
||||
{
|
||||
LOG(WARNING) << "channel " << d_channel << " Exception opening trk dump file " << e.what();
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
int galileo_telemetry_decoder_cc::general_work(int noutput_items __attribute__((unused)), gr_vector_int &ninput_items __attribute__((unused)),
|
||||
gr_vector_const_void_star &input_items, gr_vector_void_star &output_items)
|
||||
{
|
||||
int32_t corr_value = 0;
|
||||
int32_t preamble_diff = 0;
|
||||
|
||||
Gnss_Synchro **out = reinterpret_cast<Gnss_Synchro **>(&output_items[0]); // Get the output buffer pointer
|
||||
const Gnss_Synchro **in = reinterpret_cast<const Gnss_Synchro **>(&input_items[0]); // Get the input buffer pointer
|
||||
|
||||
Gnss_Synchro current_symbol; // structure to save the synchronization information and send the output object to the next block
|
||||
// 1. Copy the current tracking output
|
||||
current_symbol = in[0][0];
|
||||
// add new symbol to the symbol queue
|
||||
d_symbol_history.push_back(current_symbol.Prompt_I);
|
||||
d_sample_counter++; // count for the processed samples
|
||||
consume_each(1);
|
||||
d_flag_preamble = false;
|
||||
|
||||
if (d_symbol_history.size() > d_required_symbols)
|
||||
{
|
||||
// TODO Optimize me!
|
||||
// ******* preamble correlation ********
|
||||
for (int32_t i = 0; i < d_samples_per_preamble; i++)
|
||||
{
|
||||
if (d_symbol_history.at(i) < 0.0) // symbols clipping
|
||||
{
|
||||
corr_value -= d_preamble_samples[i];
|
||||
}
|
||||
else
|
||||
{
|
||||
corr_value += d_preamble_samples[i];
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// ******* frame sync ******************
|
||||
switch (d_stat)
|
||||
{
|
||||
case 0: // no preamble information
|
||||
{
|
||||
if (abs(corr_value) >= d_samples_per_preamble)
|
||||
{
|
||||
d_preamble_index = d_sample_counter; // record the preamble sample stamp
|
||||
LOG(INFO) << "Preamble detection for Galileo satellite " << this->d_satellite;
|
||||
d_stat = 1; // enter into frame pre-detection status
|
||||
}
|
||||
break;
|
||||
}
|
||||
case 1: // possible preamble lock
|
||||
{
|
||||
if (abs(corr_value) >= d_samples_per_preamble)
|
||||
{
|
||||
// check preamble separation
|
||||
preamble_diff = static_cast<int32_t>(d_sample_counter - d_preamble_index);
|
||||
if (abs(preamble_diff - d_preamble_period_symbols) == 0)
|
||||
{
|
||||
// try to decode frame
|
||||
LOG(INFO) << "Starting page decoder for Galileo satellite " << this->d_satellite;
|
||||
d_preamble_index = d_sample_counter; // record the preamble sample stamp
|
||||
d_stat = 2;
|
||||
}
|
||||
else
|
||||
{
|
||||
if (preamble_diff > d_preamble_period_symbols)
|
||||
{
|
||||
d_stat = 0; // start again
|
||||
}
|
||||
}
|
||||
}
|
||||
break;
|
||||
}
|
||||
case 2: //preamble acquired
|
||||
{
|
||||
if (d_sample_counter == d_preamble_index + static_cast<uint64_t>(d_preamble_period_symbols))
|
||||
{
|
||||
// call the decoder
|
||||
switch (d_frame_type)
|
||||
{
|
||||
case 1: //INAV
|
||||
// NEW Galileo page part is received
|
||||
// 0. fetch the symbols into an array
|
||||
if (corr_value > 0) //normal PLL lock
|
||||
{
|
||||
for (uint32_t i = 0; i < d_frame_length_symbols; i++)
|
||||
{
|
||||
d_page_part_symbols[i] = d_symbol_history.at(i + d_samples_per_preamble); // because last symbol of the preamble is just received now!
|
||||
}
|
||||
}
|
||||
else //180 deg. inverted carrier phase PLL lock
|
||||
{
|
||||
for (uint32_t i = 0; i < d_frame_length_symbols; i++)
|
||||
{
|
||||
d_page_part_symbols[i] = d_symbol_history.at(i + d_samples_per_preamble); // because last symbol of the preamble is just received now!
|
||||
}
|
||||
}
|
||||
decode_INAV_word(d_page_part_symbols, d_frame_length_symbols);
|
||||
break;
|
||||
case 2: //FNAV
|
||||
// NEW Galileo page part is received
|
||||
// 0. fetch the symbols into an array
|
||||
if (corr_value > 0) //normal PLL lock
|
||||
{
|
||||
int k = 0;
|
||||
for (uint32_t i = 0; i < d_frame_length_symbols; i++)
|
||||
{
|
||||
d_page_part_symbols[i] = 0;
|
||||
for (uint32_t m = 0; m < d_samples_per_symbol; m++)
|
||||
{
|
||||
d_page_part_symbols[i] += static_cast<float>(d_secondary_code_samples[k]) * d_symbol_history.at(i * d_samples_per_symbol + d_samples_per_preamble + m); // because last symbol of the preamble is just received now!
|
||||
k++;
|
||||
k = k % Galileo_E5a_I_SECONDARY_CODE_LENGTH;
|
||||
}
|
||||
}
|
||||
}
|
||||
else //180 deg. inverted carrier phase PLL lock
|
||||
{
|
||||
int k = 0;
|
||||
for (uint32_t i = 0; i < d_frame_length_symbols; i++)
|
||||
{
|
||||
d_page_part_symbols[i] = 0;
|
||||
for (uint32_t m = 0; m < d_samples_per_symbol; m++) //integrate samples into symbols
|
||||
{
|
||||
d_page_part_symbols[i] -= static_cast<float>(d_secondary_code_samples[k]) * d_symbol_history.at(i * d_samples_per_symbol + d_samples_per_preamble + m); // because last symbol of the preamble is just received now!
|
||||
k++;
|
||||
k = k % Galileo_E5a_I_SECONDARY_CODE_LENGTH;
|
||||
}
|
||||
}
|
||||
}
|
||||
decode_FNAV_word(d_page_part_symbols, d_frame_length_symbols);
|
||||
break;
|
||||
default:
|
||||
return -1;
|
||||
break;
|
||||
}
|
||||
|
||||
if (d_inav_nav.flag_CRC_test == true or d_fnav_nav.flag_CRC_test == true)
|
||||
{
|
||||
d_CRC_error_counter = 0;
|
||||
d_flag_preamble = true; // valid preamble indicator (initialized to false every work())
|
||||
d_preamble_index = d_sample_counter; // record the preamble sample stamp (t_P)
|
||||
if (!d_flag_frame_sync)
|
||||
{
|
||||
d_flag_frame_sync = true;
|
||||
DLOG(INFO) << " Frame sync SAT " << this->d_satellite;
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
d_CRC_error_counter++;
|
||||
d_preamble_index = d_sample_counter; // record the preamble sample stamp
|
||||
if (d_CRC_error_counter > CRC_ERROR_LIMIT)
|
||||
{
|
||||
LOG(INFO) << "Lost of frame sync SAT " << this->d_satellite;
|
||||
d_flag_frame_sync = false;
|
||||
d_stat = 0;
|
||||
d_TOW_at_current_symbol_ms = 0;
|
||||
d_TOW_at_Preamble_ms = 0;
|
||||
d_fnav_nav.flag_TOW_set = false;
|
||||
d_inav_nav.flag_TOW_set = false;
|
||||
}
|
||||
}
|
||||
}
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
// UPDATE GNSS SYNCHRO DATA
|
||||
// 2. Add the telemetry decoder information
|
||||
if (this->d_flag_preamble == true)
|
||||
// update TOW at the preamble instant
|
||||
{
|
||||
switch (d_frame_type)
|
||||
{
|
||||
case 1: //INAV
|
||||
{
|
||||
if (d_inav_nav.flag_TOW_set == true)
|
||||
{
|
||||
if (d_inav_nav.flag_TOW_5 == true) // page 5 arrived and decoded, so we are in the odd page (since Tow refers to the even page, we have to add 1 sec)
|
||||
{
|
||||
// TOW_5 refers to the even preamble, but when we decode it we are in the odd part, so 1 second later plus the decoding delay
|
||||
d_TOW_at_Preamble_ms = static_cast<uint32_t>(d_inav_nav.TOW_5 * 1000.0);
|
||||
d_TOW_at_current_symbol_ms = d_TOW_at_Preamble_ms + static_cast<uint32_t>(GALILEO_INAV_PAGE_PART_MS + (d_required_symbols + 1) * GALILEO_E1_CODE_PERIOD_MS);
|
||||
d_inav_nav.flag_TOW_5 = false;
|
||||
}
|
||||
|
||||
else if (d_inav_nav.flag_TOW_6 == true) // page 6 arrived and decoded, so we are in the odd page (since Tow refers to the even page, we have to add 1 sec)
|
||||
{
|
||||
// TOW_6 refers to the even preamble, but when we decode it we are in the odd part, so 1 second later plus the decoding delay
|
||||
d_TOW_at_Preamble_ms = static_cast<uint32_t>(d_inav_nav.TOW_6 * 1000.0);
|
||||
d_TOW_at_current_symbol_ms = d_TOW_at_Preamble_ms + static_cast<uint32_t>(GALILEO_INAV_PAGE_PART_MS + (d_required_symbols + 1) * GALILEO_E1_CODE_PERIOD_MS);
|
||||
d_inav_nav.flag_TOW_6 = false;
|
||||
}
|
||||
else
|
||||
{
|
||||
// this page has no timing information
|
||||
d_TOW_at_current_symbol_ms += static_cast<uint32_t>(GALILEO_E1_CODE_PERIOD_MS); // + GALILEO_INAV_PAGE_PART_SYMBOLS*GALILEO_E1_CODE_PERIOD;
|
||||
}
|
||||
}
|
||||
break;
|
||||
}
|
||||
case 2: //FNAV
|
||||
{
|
||||
if (d_fnav_nav.flag_TOW_set == true)
|
||||
{
|
||||
if (d_fnav_nav.flag_TOW_1 == true)
|
||||
{
|
||||
d_TOW_at_Preamble_ms = static_cast<uint32_t>(d_fnav_nav.FNAV_TOW_1 * 1000.0);
|
||||
d_TOW_at_current_symbol_ms = d_TOW_at_Preamble_ms + static_cast<uint32_t>((d_required_symbols + 1) * GALILEO_E5a_CODE_PERIOD_MS);
|
||||
//d_TOW_at_current_symbol_ms = d_TOW_at_Preamble_ms + static_cast<uint32_t>((GALILEO_FNAV_CODES_PER_PAGE + GALILEO_FNAV_CODES_PER_PREAMBLE) * GALILEO_E5a_CODE_PERIOD_MS);
|
||||
d_fnav_nav.flag_TOW_1 = false;
|
||||
}
|
||||
else if (d_fnav_nav.flag_TOW_2 == true)
|
||||
{
|
||||
d_TOW_at_Preamble_ms = static_cast<uint32_t>(d_fnav_nav.FNAV_TOW_2 * 1000.0);
|
||||
//d_TOW_at_current_symbol_ms = d_TOW_at_Preamble_ms + static_cast<uint32_t>((GALILEO_FNAV_CODES_PER_PAGE + GALILEO_FNAV_CODES_PER_PREAMBLE) * GALILEO_E5a_CODE_PERIOD_MS);
|
||||
d_TOW_at_current_symbol_ms = d_TOW_at_Preamble_ms + static_cast<uint32_t>((d_required_symbols + 1) * GALILEO_E5a_CODE_PERIOD_MS);
|
||||
d_fnav_nav.flag_TOW_2 = false;
|
||||
}
|
||||
else if (d_fnav_nav.flag_TOW_3 == true)
|
||||
{
|
||||
d_TOW_at_Preamble_ms = static_cast<uint32_t>(d_fnav_nav.FNAV_TOW_3 * 1000.0);
|
||||
//d_TOW_at_current_symbol_ms = d_TOW_at_Preamble_ms + static_cast<uint32_t>((GALILEO_FNAV_CODES_PER_PAGE + GALILEO_FNAV_CODES_PER_PREAMBLE) * GALILEO_E5a_CODE_PERIOD_MS);
|
||||
d_TOW_at_current_symbol_ms = d_TOW_at_Preamble_ms + static_cast<uint32_t>((d_required_symbols + 1) * GALILEO_E5a_CODE_PERIOD_MS);
|
||||
d_fnav_nav.flag_TOW_3 = false;
|
||||
}
|
||||
else if (d_fnav_nav.flag_TOW_4 == true)
|
||||
{
|
||||
d_TOW_at_Preamble_ms = static_cast<uint32_t>(d_fnav_nav.FNAV_TOW_4 * 1000.0);
|
||||
//d_TOW_at_current_symbol_ms = d_TOW_at_Preamble_ms + static_cast<uint32_t>((GALILEO_FNAV_CODES_PER_PAGE + GALILEO_FNAV_CODES_PER_PREAMBLE) * GALILEO_E5a_CODE_PERIOD_MS);
|
||||
d_TOW_at_current_symbol_ms = d_TOW_at_Preamble_ms + static_cast<uint32_t>((d_required_symbols + 1) * GALILEO_E5a_CODE_PERIOD_MS);
|
||||
d_fnav_nav.flag_TOW_4 = false;
|
||||
}
|
||||
else
|
||||
{
|
||||
d_TOW_at_current_symbol_ms += static_cast<uint32_t>(GALILEO_E5a_CODE_PERIOD_MS);
|
||||
}
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
else // if there is not a new preamble, we define the TOW of the current symbol
|
||||
{
|
||||
switch (d_frame_type)
|
||||
{
|
||||
case 1: //INAV
|
||||
{
|
||||
if (d_inav_nav.flag_TOW_set == true)
|
||||
{
|
||||
d_TOW_at_current_symbol_ms += d_PRN_code_period_ms;
|
||||
}
|
||||
break;
|
||||
}
|
||||
case 2: //FNAV
|
||||
{
|
||||
if (d_fnav_nav.flag_TOW_set == true)
|
||||
{
|
||||
d_TOW_at_current_symbol_ms += d_PRN_code_period_ms;
|
||||
}
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// remove used symbols from history
|
||||
// todo: Use circular buffer here
|
||||
if (d_symbol_history.size() > d_required_symbols)
|
||||
{
|
||||
d_symbol_history.pop_front();
|
||||
}
|
||||
|
||||
switch (d_frame_type)
|
||||
{
|
||||
case 1: //INAV
|
||||
{
|
||||
if (d_inav_nav.flag_TOW_set)
|
||||
{
|
||||
if (d_inav_nav.flag_GGTO_1 == true and d_inav_nav.flag_GGTO_2 == true and d_inav_nav.flag_GGTO_3 == true and d_inav_nav.flag_GGTO_4 == true) // all GGTO parameters arrived
|
||||
{
|
||||
delta_t = d_inav_nav.A_0G_10 + d_inav_nav.A_1G_10 * (static_cast<double>(d_TOW_at_current_symbol_ms) / 1000.0 - d_inav_nav.t_0G_10 + 604800.0 * (fmod((d_inav_nav.WN_0 - d_inav_nav.WN_0G_10), 64.0)));
|
||||
}
|
||||
|
||||
current_symbol.Flag_valid_word = true;
|
||||
}
|
||||
break;
|
||||
}
|
||||
|
||||
case 2: //FNAV
|
||||
{
|
||||
if (d_fnav_nav.flag_TOW_set)
|
||||
{
|
||||
current_symbol.Flag_valid_word = true;
|
||||
}
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
if (d_inav_nav.flag_TOW_set or d_fnav_nav.flag_TOW_set)
|
||||
{
|
||||
current_symbol.TOW_at_current_symbol_ms = d_TOW_at_current_symbol_ms;
|
||||
// todo: Galileo to GPS time conversion should be moved to observable block.
|
||||
// current_symbol.TOW_at_current_symbol_ms -= delta_t; //Galileo to GPS TOW
|
||||
|
||||
if (d_dump == true)
|
||||
{
|
||||
// MULTIPLEXED FILE RECORDING - Record results to file
|
||||
try
|
||||
{
|
||||
double tmp_double;
|
||||
uint64_t tmp_ulong_int;
|
||||
tmp_double = static_cast<double>(d_TOW_at_current_symbol_ms) / 1000.0;
|
||||
d_dump_file.write(reinterpret_cast<char *>(&tmp_double), sizeof(double));
|
||||
tmp_ulong_int = current_symbol.Tracking_sample_counter;
|
||||
d_dump_file.write(reinterpret_cast<char *>(&tmp_ulong_int), sizeof(uint64_t));
|
||||
tmp_double = static_cast<double>(d_TOW_at_Preamble_ms) / 1000.0;
|
||||
d_dump_file.write(reinterpret_cast<char *>(&tmp_double), sizeof(double));
|
||||
}
|
||||
catch (const std::ifstream::failure &e)
|
||||
{
|
||||
LOG(WARNING) << "Exception writing observables dump file " << e.what();
|
||||
}
|
||||
}
|
||||
// 3. Make the output (copy the object contents to the GNURadio reserved memory)
|
||||
*out[0] = current_symbol;
|
||||
return 1;
|
||||
}
|
||||
else
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
}
|
||||
|
|
@ -1,8 +1,7 @@
|
|||
/*!
|
||||
* \file galileo_e1b_telemetry_decoder_cc.h
|
||||
* \brief Interface of a Galileo INAV message demodulator block
|
||||
* \author Javier Arribas 2013 jarribas(at)cttc.es,
|
||||
* Mara Branzanti 2013 mara.branzanti(at)gmail.com
|
||||
* \file galileo_telemetry_decoder_cc.h
|
||||
* \brief Implementation of a Galileo unified INAV and FNAV message demodulator block
|
||||
* \author Javier Arribas 2018. jarribas(at)cttc.es
|
||||
*
|
||||
* -------------------------------------------------------------------------
|
||||
*
|
||||
|
|
@ -29,12 +28,15 @@
|
|||
* -------------------------------------------------------------------------
|
||||
*/
|
||||
|
||||
#ifndef GNSS_SDR_GALILEO_E1B_TELEMETRY_DECODER_CC_H
|
||||
#define GNSS_SDR_GALILEO_E1B_TELEMETRY_DECODER_CC_H
|
||||
|
||||
#ifndef GNSS_SDR_galileo_telemetry_decoder_cc_H
|
||||
#define GNSS_SDR_galileo_telemetry_decoder_cc_H
|
||||
|
||||
|
||||
#include "Galileo_E1.h"
|
||||
#include "Galileo_E5a.h"
|
||||
#include "galileo_navigation_message.h"
|
||||
#include "galileo_fnav_message.h"
|
||||
#include "galileo_ephemeris.h"
|
||||
#include "galileo_almanac.h"
|
||||
#include "galileo_iono.h"
|
||||
|
|
@ -46,20 +48,20 @@
|
|||
#include <string>
|
||||
|
||||
|
||||
class galileo_e1b_telemetry_decoder_cc;
|
||||
class galileo_telemetry_decoder_cc;
|
||||
|
||||
typedef boost::shared_ptr<galileo_e1b_telemetry_decoder_cc> galileo_e1b_telemetry_decoder_cc_sptr;
|
||||
typedef boost::shared_ptr<galileo_telemetry_decoder_cc> galileo_telemetry_decoder_cc_sptr;
|
||||
|
||||
galileo_e1b_telemetry_decoder_cc_sptr galileo_e1b_make_telemetry_decoder_cc(const Gnss_Satellite &satellite, bool dump);
|
||||
galileo_telemetry_decoder_cc_sptr galileo_make_telemetry_decoder_cc(const Gnss_Satellite &satellite, int frame_type, bool dump);
|
||||
|
||||
/*!
|
||||
* \brief This class implements a block that decodes the INAV data defined in Galileo ICD
|
||||
* \brief This class implements a block that decodes the INAV and FNAV data defined in Galileo ICD
|
||||
*
|
||||
*/
|
||||
class galileo_e1b_telemetry_decoder_cc : public gr::block
|
||||
class galileo_telemetry_decoder_cc : public gr::block
|
||||
{
|
||||
public:
|
||||
~galileo_e1b_telemetry_decoder_cc();
|
||||
~galileo_telemetry_decoder_cc();
|
||||
void set_satellite(const Gnss_Satellite &satellite); //!< Set satellite PRN
|
||||
void set_channel(int32_t channel); //!< Set receiver's channel
|
||||
int32_t flag_even_word_arrived;
|
||||
|
|
@ -71,23 +73,30 @@ public:
|
|||
gr_vector_const_void_star &input_items, gr_vector_void_star &output_items);
|
||||
|
||||
private:
|
||||
friend galileo_e1b_telemetry_decoder_cc_sptr
|
||||
galileo_e1b_make_telemetry_decoder_cc(const Gnss_Satellite &satellite, bool dump);
|
||||
galileo_e1b_telemetry_decoder_cc(const Gnss_Satellite &satellite, bool dump);
|
||||
friend galileo_telemetry_decoder_cc_sptr
|
||||
galileo_make_telemetry_decoder_cc(const Gnss_Satellite &satellite, int frame_type, bool dump);
|
||||
galileo_telemetry_decoder_cc(const Gnss_Satellite &satellite, int frame_type, bool dump);
|
||||
|
||||
void viterbi_decoder(double *page_part_symbols, int32_t *page_part_bits);
|
||||
|
||||
void deinterleaver(int32_t rows, int32_t cols, double *in, double *out);
|
||||
|
||||
void decode_word(double *symbols, int32_t frame_length);
|
||||
void decode_INAV_word(double *symbols, int32_t frame_length);
|
||||
void decode_FNAV_word(double *page_symbols, int32_t frame_length);
|
||||
|
||||
uint16_t d_preambles_bits[GALILEO_INAV_PREAMBLE_LENGTH_BITS];
|
||||
|
||||
int32_t *d_preambles_symbols;
|
||||
int d_frame_type;
|
||||
int32_t d_bits_per_preamble;
|
||||
int32_t d_samples_per_preamble;
|
||||
int32_t d_preamble_period_symbols;
|
||||
int32_t *d_preamble_samples;
|
||||
int32_t *d_secondary_code_samples;
|
||||
uint32_t d_samples_per_symbol;
|
||||
int32_t d_symbols_per_preamble;
|
||||
uint32_t d_PRN_code_period_ms;
|
||||
uint32_t d_required_symbols;
|
||||
uint32_t d_frame_length_symbols;
|
||||
double *d_page_part_symbols;
|
||||
|
||||
std::deque<Gnss_Synchro> d_symbol_history;
|
||||
std::deque<float> d_symbol_history;
|
||||
|
||||
uint64_t d_sample_counter;
|
||||
uint64_t d_preamble_index;
|
||||
|
|
@ -99,7 +108,8 @@ private:
|
|||
int32_t d_CRC_error_counter;
|
||||
|
||||
// navigation message vars
|
||||
Galileo_Navigation_Message d_nav;
|
||||
Galileo_Navigation_Message d_inav_nav;
|
||||
Galileo_Fnav_Message d_fnav_nav;
|
||||
|
||||
bool d_dump;
|
||||
Gnss_Satellite d_satellite;
|
||||
|
|
@ -120,8 +130,8 @@ private:
|
|||
const int32_t nn = 2; // Coding rate 1/n
|
||||
const int32_t KK = 7; // Constraint Length
|
||||
int32_t mm = KK - 1;
|
||||
const int32_t CodeLength = 240;
|
||||
int32_t DataLength = (CodeLength / nn) - mm;
|
||||
int32_t CodeLength;
|
||||
int32_t DataLength;
|
||||
};
|
||||
|
||||
#endif
|
||||
|
|
@ -110,7 +110,7 @@ GpsL5DllPllTracking::GpsL5DllPllTracking(
|
|||
int max_lock_fail = configuration->property(role + ".max_lock_fail", 50);
|
||||
if (FLAGS_max_lock_fail != 50) max_lock_fail = FLAGS_max_lock_fail;
|
||||
trk_param.max_lock_fail = max_lock_fail;
|
||||
double carrier_lock_th = configuration->property(role + ".carrier_lock_th", 0.85);
|
||||
double carrier_lock_th = configuration->property(role + ".carrier_lock_th", 0.75);
|
||||
if (FLAGS_carrier_lock_th != 0.85) carrier_lock_th = FLAGS_carrier_lock_th;
|
||||
trk_param.carrier_lock_th = carrier_lock_th;
|
||||
|
||||
|
|
|
|||
|
|
@ -238,17 +238,18 @@ dll_pll_veml_tracking::dll_pll_veml_tracking(const Dll_Pll_Conf &conf_) : gr::bl
|
|||
d_correlation_length_ms = 1;
|
||||
d_code_samples_per_chip = 1;
|
||||
d_code_length_chips = static_cast<uint32_t>(Galileo_E5a_CODE_LENGTH_CHIPS);
|
||||
d_secondary = true;
|
||||
|
||||
if (trk_parameters.track_pilot)
|
||||
{
|
||||
d_secondary = true;
|
||||
d_secondary_code_length = static_cast<uint32_t>(Galileo_E5a_Q_SECONDARY_CODE_LENGTH);
|
||||
signal_pretty_name = signal_pretty_name + "Q";
|
||||
interchange_iq = true;
|
||||
}
|
||||
else
|
||||
{
|
||||
d_secondary_code_length = static_cast<uint32_t>(Galileo_E5a_I_SECONDARY_CODE_LENGTH);
|
||||
d_secondary_code_string = const_cast<std::string *>(&Galileo_E5a_I_SECONDARY_CODE);
|
||||
//Do not acquire secondary code in data component. It is done in telemetry decoder
|
||||
d_secondary = false;
|
||||
signal_pretty_name = signal_pretty_name + "I";
|
||||
interchange_iq = false;
|
||||
}
|
||||
|
|
@ -362,7 +363,7 @@ dll_pll_veml_tracking::dll_pll_veml_tracking(const Dll_Pll_Conf &conf_) : gr::bl
|
|||
}
|
||||
|
||||
// --- Initializations ---
|
||||
multicorrelator_cpu.set_fast_resampler(trk_parameters.use_fast_resampler);
|
||||
multicorrelator_cpu.set_high_dynamics_resampler(trk_parameters.use_high_dynamics_resampler);
|
||||
// Initial code frequency basis of NCO
|
||||
d_code_freq_chips = d_code_chip_rate;
|
||||
// Residual code phase (in chips)
|
||||
|
|
@ -497,7 +498,7 @@ void dll_pll_veml_tracking::start_tracking()
|
|||
for (uint32_t i = 0; i < d_code_length_chips; i++)
|
||||
{
|
||||
d_tracking_code[i] = aux_code[i].imag();
|
||||
d_data_code[i] = aux_code[i].real();
|
||||
d_data_code[i] = aux_code[i].real(); //the same because it is generated the full signal (E5aI + E5aQ)
|
||||
}
|
||||
d_Prompt_Data[0] = gr_complex(0.0, 0.0);
|
||||
correlator_data_cpu.set_local_code_and_taps(d_code_length_chips, d_data_code, d_prompt_data_shift);
|
||||
|
|
|
|||
|
|
@ -1,6 +1,6 @@
|
|||
/*!
|
||||
* \file cpu_multicorrelator_real_codes.cc
|
||||
* \brief High optimized CPU vector multiTAP correlator class with real-valued local codes
|
||||
* \brief Highly optimized CPU vector multiTAP correlator class with real-valued local codes
|
||||
* \authors <ul>
|
||||
* <li> Javier Arribas, 2015. jarribas(at)cttc.es
|
||||
* <li> Cillian O'Driscoll, 2017. cillian.odriscoll(at)gmail.com
|
||||
|
|
@ -46,7 +46,7 @@ cpu_multicorrelator_real_codes::cpu_multicorrelator_real_codes()
|
|||
d_local_codes_resampled = nullptr;
|
||||
d_code_length_chips = 0;
|
||||
d_n_correlators = 0;
|
||||
d_use_fast_resampler = true;
|
||||
d_use_high_dynamics_resampler = true;
|
||||
}
|
||||
|
||||
|
||||
|
|
@ -100,9 +100,9 @@ bool cpu_multicorrelator_real_codes::set_input_output_vectors(std::complex<float
|
|||
|
||||
void cpu_multicorrelator_real_codes::update_local_code(int correlator_length_samples, float rem_code_phase_chips, float code_phase_step_chips, float code_phase_rate_step_chips)
|
||||
{
|
||||
if (d_use_fast_resampler)
|
||||
if (d_use_high_dynamics_resampler)
|
||||
{
|
||||
volk_gnsssdr_32f_xn_fast_resampler_32f_xn(d_local_codes_resampled,
|
||||
volk_gnsssdr_32f_xn_high_dynamics_resampler_32f_xn(d_local_codes_resampled,
|
||||
d_local_code_in,
|
||||
rem_code_phase_chips,
|
||||
code_phase_step_chips,
|
||||
|
|
@ -159,8 +159,9 @@ bool cpu_multicorrelator_real_codes::free()
|
|||
return true;
|
||||
}
|
||||
|
||||
void cpu_multicorrelator_real_codes::set_fast_resampler(
|
||||
bool use_fast_resampler)
|
||||
|
||||
void cpu_multicorrelator_real_codes::set_high_dynamics_resampler(
|
||||
bool use_high_dynamics_resampler)
|
||||
{
|
||||
d_use_fast_resampler = use_fast_resampler;
|
||||
d_use_high_dynamics_resampler = use_high_dynamics_resampler;
|
||||
}
|
||||
|
|
|
|||
|
|
@ -1,6 +1,6 @@
|
|||
/*!
|
||||
* \file cpu_multicorrelator_real_codes.h
|
||||
* \brief High optimized CPU vector multiTAP correlator class using real-valued local codes
|
||||
* \brief Highly optimized CPU vector multiTAP correlator class using real-valued local codes
|
||||
* \authors <ul>
|
||||
* <li> Javier Arribas, 2015. jarribas(at)cttc.es
|
||||
* <li> Cillian O'Driscoll, 2017, cillian.odriscoll(at)gmail.com
|
||||
|
|
@ -46,7 +46,7 @@ class cpu_multicorrelator_real_codes
|
|||
{
|
||||
public:
|
||||
cpu_multicorrelator_real_codes();
|
||||
void set_fast_resampler(bool use_fast_resampler);
|
||||
void set_high_dynamics_resampler(bool use_high_dynamics_resampler);
|
||||
~cpu_multicorrelator_real_codes();
|
||||
bool init(int max_signal_length_samples, int n_correlators);
|
||||
bool set_local_code_and_taps(int code_length_chips, const float *local_code_in, float *shifts_chips);
|
||||
|
|
@ -62,7 +62,7 @@ private:
|
|||
const float *d_local_code_in;
|
||||
std::complex<float> *d_corr_out;
|
||||
float *d_shifts_chips;
|
||||
bool d_use_fast_resampler;
|
||||
bool d_use_high_dynamics_resampler;
|
||||
int d_code_length_chips;
|
||||
int d_n_correlators;
|
||||
};
|
||||
|
|
|
|||
|
|
@ -36,7 +36,7 @@
|
|||
Dll_Pll_Conf::Dll_Pll_Conf()
|
||||
{
|
||||
/* DLL/PLL tracking configuration */
|
||||
use_fast_resampler = true;
|
||||
use_high_dynamics_resampler = true;
|
||||
fs_in = 0.0;
|
||||
vector_length = 0U;
|
||||
dump = false;
|
||||
|
|
|
|||
|
|
@ -56,7 +56,7 @@ public:
|
|||
float early_late_space_narrow_chips;
|
||||
float very_early_late_space_narrow_chips;
|
||||
int32_t extend_correlation_symbols;
|
||||
bool use_fast_resampler;
|
||||
bool use_high_dynamics_resampler;
|
||||
int32_t cn0_samples;
|
||||
int32_t carrier_lock_det_mav_samples;
|
||||
int32_t cn0_min;
|
||||
|
|
|
|||
|
|
@ -1,6 +1,9 @@
|
|||
/*!
|
||||
* \file gnss_synchro_monitor.cc
|
||||
* \brief Interface of a Position Velocity and Time computation block
|
||||
* \brief Implementation of a receiver monitoring block which allows sending
|
||||
* a data stream with the receiver internal parameters (Gnss_Synchro objects)
|
||||
* to local or remote clients over UDP.
|
||||
*
|
||||
* \author Álvaro Cebrián Juan, 2018. acebrianjuan(at)gmail.com
|
||||
*
|
||||
* -------------------------------------------------------------------------
|
||||
|
|
@ -61,6 +64,8 @@ gnss_synchro_monitor::gnss_synchro_monitor(unsigned int n_channels,
|
|||
d_nchannels = n_channels;
|
||||
|
||||
udp_sink_ptr = std::unique_ptr<Gnss_Synchro_Udp_Sink>(new Gnss_Synchro_Udp_Sink(udp_addresses, udp_port));
|
||||
|
||||
count = 0;
|
||||
}
|
||||
|
||||
|
||||
|
|
@ -75,17 +80,16 @@ int gnss_synchro_monitor::work(int noutput_items, gr_vector_const_void_star& inp
|
|||
const Gnss_Synchro** in = reinterpret_cast<const Gnss_Synchro**>(&input_items[0]); // Get the input buffer pointer
|
||||
for (int epoch = 0; epoch < noutput_items; epoch++)
|
||||
{
|
||||
// ############ 1. READ PSEUDORANGES ####
|
||||
for (unsigned int i = 0; i < d_nchannels; i++)
|
||||
count++;
|
||||
if (count >= d_output_rate_ms)
|
||||
{
|
||||
//if (in[i][epoch].Flag_valid_pseudorange)
|
||||
// {
|
||||
// }
|
||||
//todo: send the gnss_synchro objects
|
||||
|
||||
std::vector<Gnss_Synchro> stocks;
|
||||
stocks.push_back(in[i][epoch]);
|
||||
udp_sink_ptr->write_gnss_synchro(stocks);
|
||||
for (unsigned int i = 0; i < d_nchannels; i++)
|
||||
{
|
||||
std::vector<Gnss_Synchro> stocks;
|
||||
stocks.push_back(in[i][epoch]);
|
||||
udp_sink_ptr->write_gnss_synchro(stocks);
|
||||
}
|
||||
count = 0;
|
||||
}
|
||||
}
|
||||
return noutput_items;
|
||||
|
|
|
|||
|
|
@ -1,6 +1,9 @@
|
|||
/*!
|
||||
* \file gnss_synchro_monitor.h
|
||||
* \brief Interface of a Position Velocity and Time computation block
|
||||
* \brief Interface of a receiver monitoring block which allows sending
|
||||
* a data stream with the receiver internal parameters (Gnss_Synchro objects)
|
||||
* to local or remote clients over UDP.
|
||||
*
|
||||
* \author Álvaro Cebrián Juan, 2018. acebrianjuan(at)gmail.com
|
||||
*
|
||||
* -------------------------------------------------------------------------
|
||||
|
|
@ -65,6 +68,8 @@ private:
|
|||
|
||||
std::unique_ptr<Gnss_Synchro_Udp_Sink> udp_sink_ptr;
|
||||
|
||||
int count;
|
||||
|
||||
|
||||
public:
|
||||
gnss_synchro_monitor(unsigned int nchannels,
|
||||
|
|
|
|||
|
|
@ -59,6 +59,7 @@ const double Galileo_E1_SUB_CARRIER_A_RATE_HZ = 1.023e6; //!< Galileo E1 sub-ca
|
|||
const double Galileo_E1_SUB_CARRIER_B_RATE_HZ = 6.138e6; //!< Galileo E1 sub-carrier 'b' rate [Hz]
|
||||
const double Galileo_E1_B_CODE_LENGTH_CHIPS = 4092.0; //!< Galileo E1-B code length [chips]
|
||||
const double Galileo_E1_B_SYMBOL_RATE_BPS = 250.0; //!< Galileo E1-B symbol rate [bits/second]
|
||||
const int32_t Galileo_E1_B_SAMPLES_PER_SYMBOL = 1; //!< (Galileo_E1_CODE_CHIP_RATE_HZ / Galileo_E1_B_CODE_LENGTH_CHIPS) / Galileo_E1_B_SYMBOL_RATE_BPS
|
||||
const int32_t Galileo_E1_C_SECONDARY_CODE_LENGTH = 25; //!< Galileo E1-C secondary code length [chips]
|
||||
const int32_t Galileo_E1_NUMBER_OF_CODES = 50;
|
||||
|
||||
|
|
@ -70,10 +71,7 @@ const int32_t GALILEO_E1_HISTORY_DEEP = 100;
|
|||
|
||||
// Galileo INAV Telemetry structure
|
||||
|
||||
#define GALILEO_INAV_PREAMBLE \
|
||||
{ \
|
||||
0, 1, 0, 1, 1, 0, 0, 0, 0, 0 \
|
||||
}
|
||||
const std::string GALILEO_INAV_PREAMBLE = {"0101100000"};
|
||||
|
||||
const int32_t GALILEO_INAV_PREAMBLE_LENGTH_BITS = 10;
|
||||
const double GALILEO_INAV_PAGE_PART_WITH_PREABLE_SECONDS = 2.0 + GALILEO_INAV_PREAMBLE_LENGTH_BITS * Galileo_E1_CODE_PERIOD;
|
||||
|
|
|
|||
|
|
@ -35,7 +35,7 @@
|
|||
#include <limits>
|
||||
|
||||
DEFINE_double(skip_obs_transitory_s, 30.0, "Skip the initial observable outputs to avoid transitory results [s]");
|
||||
DEFINE_bool(compute_single_diffs, false, "Compute also the signel difference errors for Accumulated Carrier Phase and Carrier Doppler (requires LO synchronization between receivers)");
|
||||
|
||||
DEFINE_bool(compute_single_diffs, false, "Compute also the single difference errors for Accumulated Carrier Phase and Carrier Doppler (requires LO synchronization between receivers)");
|
||||
DEFINE_bool(compare_with_5X, false, "Compare the E5a Doppler and Carrier Phases with the E5 full bw in RINEX (expect discrepancy due to the center frequencies differences");
|
||||
|
||||
#endif
|
||||
|
|
|
|||
|
|
@ -158,6 +158,7 @@ DECLARE_string(log_dir);
|
|||
#include "unit-tests/signal-processing-blocks/observables/hybrid_observables_test.cc"
|
||||
#endif
|
||||
|
||||
#include "unit-tests/signal-processing-blocks/telemetry_decoder/galileo_fnav_inav_decoder_test.cc"
|
||||
#include "unit-tests/system-parameters/glonass_gnav_ephemeris_test.cc"
|
||||
#include "unit-tests/system-parameters/glonass_gnav_nav_message_test.cc"
|
||||
|
||||
|
|
|
|||
|
|
@ -64,7 +64,7 @@ DEFINE_int32(acq_test_second_doppler_step, 10, "If --acq_test_make_two_steps is
|
|||
|
||||
DEFINE_int32(acq_test_signal_duration_s, 2, "Generated signal duration, in s");
|
||||
DEFINE_int32(acq_test_num_meas, 0, "Number of measurements per run. 0 means the complete file.");
|
||||
DEFINE_double(acq_test_cn0_init, 33.0, "Initial CN0, in dBHz.");
|
||||
DEFINE_double(acq_test_cn0_init, 30.0, "Initial CN0, in dBHz.");
|
||||
DEFINE_double(acq_test_cn0_final, 45.0, "Final CN0, in dBHz.");
|
||||
DEFINE_double(acq_test_cn0_step, 3.0, "CN0 step, in dB.");
|
||||
|
||||
|
|
|
|||
|
|
@ -53,7 +53,6 @@
|
|||
#include "telemetry_decoder_interface.h"
|
||||
#include "in_memory_configuration.h"
|
||||
#include "gnss_synchro.h"
|
||||
#include "gps_l1_ca_telemetry_decoder.h"
|
||||
#include "tracking_true_obs_reader.h"
|
||||
#include "true_observables_reader.h"
|
||||
#include "tracking_dump_reader.h"
|
||||
|
|
@ -326,7 +325,8 @@ bool HybridObservablesTest::acquire_signal()
|
|||
{
|
||||
tmp_gnss_synchro.System = 'G';
|
||||
std::string signal = "1C";
|
||||
signal.copy(tmp_gnss_synchro.Signal, 2, 0);
|
||||
const char* str = signal.c_str(); // get a C style null terminated string
|
||||
std::memcpy(static_cast<void*>(tmp_gnss_synchro.Signal), str, 3); // copy string into synchro char array: 2 char + null
|
||||
tmp_gnss_synchro.PRN = SV_ID;
|
||||
System_and_Signal = "GPS L1 CA";
|
||||
config->set_property("Acquisition.max_dwells", std::to_string(FLAGS_external_signal_acquisition_dwells));
|
||||
|
|
@ -337,7 +337,8 @@ bool HybridObservablesTest::acquire_signal()
|
|||
{
|
||||
tmp_gnss_synchro.System = 'E';
|
||||
std::string signal = "1B";
|
||||
signal.copy(tmp_gnss_synchro.Signal, 2, 0);
|
||||
const char* str = signal.c_str(); // get a C style null terminated string
|
||||
std::memcpy(static_cast<void*>(tmp_gnss_synchro.Signal), str, 3); // copy string into synchro char array: 2 char + null
|
||||
tmp_gnss_synchro.PRN = SV_ID;
|
||||
System_and_Signal = "Galileo E1B";
|
||||
config->set_property("Acquisition.max_dwells", std::to_string(FLAGS_external_signal_acquisition_dwells));
|
||||
|
|
@ -347,7 +348,8 @@ bool HybridObservablesTest::acquire_signal()
|
|||
{
|
||||
tmp_gnss_synchro.System = 'G';
|
||||
std::string signal = "2S";
|
||||
signal.copy(tmp_gnss_synchro.Signal, 2, 0);
|
||||
const char* str = signal.c_str(); // get a C style null terminated string
|
||||
std::memcpy(static_cast<void*>(tmp_gnss_synchro.Signal), str, 3); // copy string into synchro char array: 2 char + null
|
||||
tmp_gnss_synchro.PRN = SV_ID;
|
||||
System_and_Signal = "GPS L2CM";
|
||||
config->set_property("Acquisition.max_dwells", std::to_string(FLAGS_external_signal_acquisition_dwells));
|
||||
|
|
@ -357,7 +359,8 @@ bool HybridObservablesTest::acquire_signal()
|
|||
{
|
||||
tmp_gnss_synchro.System = 'E';
|
||||
std::string signal = "5X";
|
||||
signal.copy(tmp_gnss_synchro.Signal, 2, 0);
|
||||
const char* str = signal.c_str(); // get a C style null terminated string
|
||||
std::memcpy(static_cast<void*>(tmp_gnss_synchro.Signal), str, 3); // copy string into synchro char array: 2 char + null
|
||||
tmp_gnss_synchro.PRN = SV_ID;
|
||||
System_and_Signal = "Galileo E5a";
|
||||
config->set_property("Acquisition_5X.coherent_integration_time_ms", "1");
|
||||
|
|
@ -372,7 +375,8 @@ bool HybridObservablesTest::acquire_signal()
|
|||
{
|
||||
tmp_gnss_synchro.System = 'E';
|
||||
std::string signal = "5X";
|
||||
signal.copy(tmp_gnss_synchro.Signal, 2, 0);
|
||||
const char* str = signal.c_str(); // get a C style null terminated string
|
||||
std::memcpy(static_cast<void*>(tmp_gnss_synchro.Signal), str, 3); // copy string into synchro char array: 2 char + null
|
||||
tmp_gnss_synchro.PRN = SV_ID;
|
||||
System_and_Signal = "Galileo E5a";
|
||||
config->set_property("Acquisition.max_dwells", std::to_string(FLAGS_external_signal_acquisition_dwells));
|
||||
|
|
@ -382,7 +386,8 @@ bool HybridObservablesTest::acquire_signal()
|
|||
{
|
||||
tmp_gnss_synchro.System = 'G';
|
||||
std::string signal = "L5";
|
||||
signal.copy(tmp_gnss_synchro.Signal, 2, 0);
|
||||
const char* str = signal.c_str(); // get a C style null terminated string
|
||||
std::memcpy(static_cast<void*>(tmp_gnss_synchro.Signal), str, 3); // copy string into synchro char array: 2 char + null
|
||||
tmp_gnss_synchro.PRN = SV_ID;
|
||||
System_and_Signal = "GPS L5I";
|
||||
config->set_property("Acquisition.max_dwells", std::to_string(FLAGS_external_signal_acquisition_dwells));
|
||||
|
|
@ -579,7 +584,7 @@ void HybridObservablesTest::configure_receiver(
|
|||
std::memcpy(static_cast<void*>(gnss_synchro_master.Signal), str, 3); // copy string into synchro char array: 2 char + null
|
||||
|
||||
config->set_property("Tracking.early_late_space_chips", "0.5");
|
||||
config->set_property("Tracking.track_pilot", "false");
|
||||
config->set_property("Tracking.track_pilot", "true");
|
||||
|
||||
config->set_property("TelemetryDecoder.implementation", "GPS_L2C_Telemetry_Decoder");
|
||||
}
|
||||
|
|
@ -596,7 +601,7 @@ void HybridObservablesTest::configure_receiver(
|
|||
config->supersede_property("Tracking.implementation", std::string("Galileo_E5a_DLL_PLL_Tracking"));
|
||||
}
|
||||
config->set_property("Tracking.early_late_space_chips", "0.5");
|
||||
config->set_property("Tracking.track_pilot", "false");
|
||||
config->set_property("Tracking.track_pilot", "true");
|
||||
config->set_property("Tracking.order", "2");
|
||||
|
||||
config->set_property("TelemetryDecoder.implementation", "Galileo_E5a_Telemetry_Decoder");
|
||||
|
|
@ -610,7 +615,7 @@ void HybridObservablesTest::configure_receiver(
|
|||
std::memcpy(static_cast<void*>(gnss_synchro_master.Signal), str, 3); // copy string into synchro char array: 2 char + null
|
||||
|
||||
config->set_property("Tracking.early_late_space_chips", "0.5");
|
||||
config->set_property("Tracking.track_pilot", "false");
|
||||
config->set_property("Tracking.track_pilot", "true");
|
||||
config->set_property("Tracking.order", "2");
|
||||
|
||||
config->set_property("TelemetryDecoder.implementation", "GPS_L5_Telemetry_Decoder");
|
||||
|
|
@ -888,9 +893,9 @@ void HybridObservablesTest::check_results_carrier_doppler_double_diff(
|
|||
ASSERT_LT(error_mean, 5);
|
||||
ASSERT_GT(error_mean, -5);
|
||||
//assuming PLL BW=35
|
||||
ASSERT_LT(error_var, 200);
|
||||
ASSERT_LT(max_error, 70);
|
||||
ASSERT_GT(min_error, -70);
|
||||
ASSERT_LT(error_var, 250);
|
||||
ASSERT_LT(max_error, 100);
|
||||
ASSERT_GT(min_error, -100);
|
||||
ASSERT_LT(rmse, 30);
|
||||
}
|
||||
|
||||
|
|
@ -967,9 +972,9 @@ void HybridObservablesTest::check_results_carrier_doppler(
|
|||
ASSERT_LT(error_mean_ch0, 5);
|
||||
ASSERT_GT(error_mean_ch0, -5);
|
||||
//assuming PLL BW=35
|
||||
ASSERT_LT(error_var_ch0, 200);
|
||||
ASSERT_LT(max_error_ch0, 70);
|
||||
ASSERT_GT(min_error_ch0, -70);
|
||||
ASSERT_LT(error_var_ch0, 250);
|
||||
ASSERT_LT(max_error_ch0, 100);
|
||||
ASSERT_GT(min_error_ch0, -100);
|
||||
ASSERT_LT(rmse_ch0, 30);
|
||||
}
|
||||
|
||||
|
|
@ -1195,7 +1200,7 @@ bool HybridObservablesTest::ReadRinexObs(std::vector<arma::mat>* obs_vec, Gnss_S
|
|||
dataobj = r_ref_data.getObs(prn, "L5I", r_ref_header);
|
||||
obs_vec->at(n)(obs_vec->at(n).n_rows - 1, 3) = dataobj.data;
|
||||
}
|
||||
else if (strcmp("5X\0", gnss.Signal) == 0) //Simulator gives RINEX with E5a+E5b
|
||||
else if (strcmp("5X\0", gnss.Signal) == 0) //Simulator gives RINEX with E5a+E5b. Doppler and accumulated Carrier phase WILL differ
|
||||
{
|
||||
obs_vec->at(n)(obs_vec->at(n).n_rows - 1, 0) = sow;
|
||||
dataobj = r_ref_data.getObs(prn, "C8I", r_ref_header);
|
||||
|
|
@ -1579,8 +1584,8 @@ TEST_F(HybridObservablesTest, ValidationOfResults)
|
|||
}
|
||||
|
||||
arma::vec receiver_time_offset_ref_channel_s;
|
||||
receiver_time_offset_ref_channel_s = true_obs_vec.at(min_pr_ch_id).col(1) / GPS_C_m_s - GPS_STARTOFFSET_ms / 1000.0;
|
||||
std::cout << "Ref channel initial Receiver time offset " << receiver_time_offset_ref_channel_s(0) * 1e3 << " [ms]" << std::endl;
|
||||
receiver_time_offset_ref_channel_s = (true_obs_vec.at(min_pr_ch_id).col(1)(0) - measured_obs_vec.at(min_pr_ch_id).col(4)(0)) / GPS_C_m_s;
|
||||
std::cout << "Ref. channel initial Receiver time offset " << receiver_time_offset_ref_channel_s(0) * 1e3 << " [ms]" << std::endl;
|
||||
|
||||
for (unsigned int n = 0; n < measured_obs_vec.size(); n++)
|
||||
{
|
||||
|
|
@ -1624,21 +1629,28 @@ TEST_F(HybridObservablesTest, ValidationOfResults)
|
|||
measured_obs_vec.at(n),
|
||||
measured_obs_vec.at(min_pr_ch_id),
|
||||
"[CH " + std::to_string(n) + "] PRN " + std::to_string(gnss_synchro_vec.at(n).PRN) + " ");
|
||||
check_results_carrier_phase_double_diff(true_obs_vec.at(n),
|
||||
true_obs_vec.at(min_pr_ch_id),
|
||||
true_TOW_ch_s,
|
||||
true_TOW_ref_ch_s,
|
||||
measured_obs_vec.at(n),
|
||||
measured_obs_vec.at(min_pr_ch_id),
|
||||
"[CH " + std::to_string(n) + "] PRN " + std::to_string(gnss_synchro_vec.at(n).PRN) + " ");
|
||||
|
||||
check_results_carrier_doppler_double_diff(true_obs_vec.at(n),
|
||||
true_obs_vec.at(min_pr_ch_id),
|
||||
true_TOW_ch_s,
|
||||
true_TOW_ref_ch_s,
|
||||
measured_obs_vec.at(n),
|
||||
measured_obs_vec.at(min_pr_ch_id),
|
||||
"[CH " + std::to_string(n) + "] PRN " + std::to_string(gnss_synchro_vec.at(n).PRN) + " ");
|
||||
//Do not compare E5a with E5 RINEX due to the Doppler frequency discrepancy caused by the different center frequencies
|
||||
//E5a_fc=1176.45e6, E5b_fc=1207.14e6, E5_fc=1191.795e6;
|
||||
std::cout << "s:" << gnss_synchro_vec.at(n).Signal << std::endl;
|
||||
if (strcmp("5X\0", gnss_synchro_vec.at(n).Signal) != 0 or FLAGS_compare_with_5X)
|
||||
{
|
||||
check_results_carrier_phase_double_diff(true_obs_vec.at(n),
|
||||
true_obs_vec.at(min_pr_ch_id),
|
||||
true_TOW_ch_s,
|
||||
true_TOW_ref_ch_s,
|
||||
measured_obs_vec.at(n),
|
||||
measured_obs_vec.at(min_pr_ch_id),
|
||||
"[CH " + std::to_string(n) + "] PRN " + std::to_string(gnss_synchro_vec.at(n).PRN) + " ");
|
||||
|
||||
check_results_carrier_doppler_double_diff(true_obs_vec.at(n),
|
||||
true_obs_vec.at(min_pr_ch_id),
|
||||
true_TOW_ch_s,
|
||||
true_TOW_ref_ch_s,
|
||||
measured_obs_vec.at(n),
|
||||
measured_obs_vec.at(min_pr_ch_id),
|
||||
"[CH " + std::to_string(n) + "] PRN " + std::to_string(gnss_synchro_vec.at(n).PRN) + " ");
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
|
|
|
|||
|
|
@ -0,0 +1,288 @@
|
|||
/*!
|
||||
* \file galileo_fnav_inav_decoder_test.cc
|
||||
* \brief This class implements the unit test for the Galileo FNAV and INAV frames
|
||||
* according to the Galileo ICD
|
||||
* \author Javier Arribas, 2018. jarribas(at)cttc.es
|
||||
*
|
||||
*
|
||||
* -------------------------------------------------------------------------
|
||||
*
|
||||
* Copyright (C) 2012-2018 (see AUTHORS file for a list of contributors)
|
||||
*
|
||||
* GNSS-SDR is a software defined Global Navigation
|
||||
* Satellite Systems receiver
|
||||
*
|
||||
* This file is part of GNSS-SDR.
|
||||
*
|
||||
* GNSS-SDR is free software: you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation, either version 3 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* GNSS-SDR is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with GNSS-SDR. If not, see <https://www.gnu.org/licenses/>.
|
||||
*
|
||||
* -------------------------------------------------------------------------
|
||||
*/
|
||||
|
||||
#include "galileo_navigation_message.h"
|
||||
#include "galileo_fnav_message.h"
|
||||
#include "convolutional.h"
|
||||
#include <unistd.h>
|
||||
#include <chrono>
|
||||
#include <exception>
|
||||
#include <string>
|
||||
#include <armadillo>
|
||||
#include <volk_gnsssdr/volk_gnsssdr.h>
|
||||
#include <gtest/gtest.h>
|
||||
|
||||
|
||||
class Galileo_FNAV_INAV_test : public ::testing::Test
|
||||
{
|
||||
public:
|
||||
Galileo_Navigation_Message INAV_decoder;
|
||||
Galileo_Fnav_Message FNAV_decoder;
|
||||
// vars for Viterbi decoder
|
||||
int32_t *out0, *out1, *state0, *state1;
|
||||
int32_t g_encoder[2];
|
||||
const int32_t nn = 2; // Coding rate 1/n
|
||||
const int32_t KK = 7; // Constraint Length
|
||||
int32_t mm = KK - 1;
|
||||
int32_t flag_even_word_arrived;
|
||||
void viterbi_decoder(double *page_part_symbols, int32_t *page_part_bits, int32_t _datalength)
|
||||
{
|
||||
Viterbi(page_part_bits, out0, state0, out1, state1,
|
||||
page_part_symbols, KK, nn, _datalength);
|
||||
}
|
||||
|
||||
|
||||
void deinterleaver(int32_t rows, int32_t cols, double *in, double *out)
|
||||
{
|
||||
for (int32_t r = 0; r < rows; r++)
|
||||
{
|
||||
for (int32_t c = 0; c < cols; c++)
|
||||
{
|
||||
out[c * rows + r] = in[r * cols + c];
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
bool decode_INAV_word(double *page_part_symbols, int32_t frame_length)
|
||||
{
|
||||
// 1. De-interleave
|
||||
double *page_part_symbols_deint = static_cast<double *>(volk_gnsssdr_malloc(frame_length * sizeof(double), volk_gnsssdr_get_alignment()));
|
||||
deinterleaver(GALILEO_INAV_INTERLEAVER_ROWS, GALILEO_INAV_INTERLEAVER_COLS, page_part_symbols, page_part_symbols_deint);
|
||||
|
||||
// 2. Viterbi decoder
|
||||
// 2.1 Take into account the NOT gate in G2 polynomial (Galileo ICD Figure 13, FEC encoder)
|
||||
// 2.2 Take into account the possible inversion of the polarity due to PLL lock at 180º
|
||||
for (int32_t i = 0; i < frame_length; i++)
|
||||
{
|
||||
if ((i + 1) % 2 == 0)
|
||||
{
|
||||
page_part_symbols_deint[i] = -page_part_symbols_deint[i];
|
||||
}
|
||||
}
|
||||
|
||||
int32_t *page_part_bits = static_cast<int32_t *>(volk_gnsssdr_malloc((frame_length / 2) * sizeof(int32_t), volk_gnsssdr_get_alignment()));
|
||||
|
||||
const int32_t CodeLength = 240;
|
||||
int32_t DataLength = (CodeLength / nn) - mm;
|
||||
viterbi_decoder(page_part_symbols_deint, page_part_bits, DataLength);
|
||||
volk_gnsssdr_free(page_part_symbols_deint);
|
||||
|
||||
// 3. Call the Galileo page decoder
|
||||
std::string page_String;
|
||||
for (int32_t i = 0; i < (frame_length / 2); i++)
|
||||
{
|
||||
if (page_part_bits[i] > 0)
|
||||
{
|
||||
page_String.push_back('1');
|
||||
}
|
||||
else
|
||||
{
|
||||
page_String.push_back('0');
|
||||
}
|
||||
}
|
||||
|
||||
bool crc_ok = false;
|
||||
if (page_part_bits[0] == 1)
|
||||
{
|
||||
// DECODE COMPLETE WORD (even + odd) and TEST CRC
|
||||
INAV_decoder.split_page(page_String, flag_even_word_arrived);
|
||||
if (INAV_decoder.flag_CRC_test == true)
|
||||
{
|
||||
std::cout << "Galileo E1 INAV PAGE CRC correct \n";
|
||||
//std::cout << "Galileo E1 CRC correct on channel " << d_channel << " from satellite " << d_satellite << std::endl;
|
||||
crc_ok = true;
|
||||
}
|
||||
flag_even_word_arrived = 0;
|
||||
}
|
||||
else
|
||||
{
|
||||
// STORE HALF WORD (even page)
|
||||
INAV_decoder.split_page(page_String.c_str(), flag_even_word_arrived);
|
||||
flag_even_word_arrived = 1;
|
||||
}
|
||||
volk_gnsssdr_free(page_part_bits);
|
||||
return crc_ok;
|
||||
}
|
||||
|
||||
bool decode_FNAV_word(double *page_symbols, int32_t frame_length)
|
||||
{
|
||||
// 1. De-interleave
|
||||
double *page_symbols_deint = static_cast<double *>(volk_gnsssdr_malloc(frame_length * sizeof(double), volk_gnsssdr_get_alignment()));
|
||||
deinterleaver(GALILEO_FNAV_INTERLEAVER_ROWS, GALILEO_FNAV_INTERLEAVER_COLS, page_symbols, page_symbols_deint);
|
||||
|
||||
// 2. Viterbi decoder
|
||||
// 2.1 Take into account the NOT gate in G2 polynomial (Galileo ICD Figure 13, FEC encoder)
|
||||
// 2.2 Take into account the possible inversion of the polarity due to PLL lock at 180
|
||||
for (int32_t i = 0; i < frame_length; i++)
|
||||
{
|
||||
if ((i + 1) % 2 == 0)
|
||||
{
|
||||
page_symbols_deint[i] = -page_symbols_deint[i];
|
||||
}
|
||||
}
|
||||
int32_t *page_bits = static_cast<int32_t *>(volk_gnsssdr_malloc((frame_length / 2) * sizeof(int32_t), volk_gnsssdr_get_alignment()));
|
||||
|
||||
const int32_t CodeLength = 488;
|
||||
int32_t DataLength = (CodeLength / nn) - mm;
|
||||
viterbi_decoder(page_symbols_deint, page_bits, DataLength);
|
||||
|
||||
volk_gnsssdr_free(page_symbols_deint);
|
||||
|
||||
// 3. Call the Galileo page decoder
|
||||
std::string page_String;
|
||||
for (int32_t i = 0; i < frame_length; i++)
|
||||
{
|
||||
if (page_bits[i] > 0)
|
||||
{
|
||||
page_String.push_back('1');
|
||||
}
|
||||
else
|
||||
{
|
||||
page_String.push_back('0');
|
||||
}
|
||||
}
|
||||
volk_gnsssdr_free(page_bits);
|
||||
|
||||
// DECODE COMPLETE WORD (even + odd) and TEST CRC
|
||||
FNAV_decoder.split_page(page_String);
|
||||
if (FNAV_decoder.flag_CRC_test == true)
|
||||
{
|
||||
std::cout << "Galileo E5a FNAV PAGE CRC correct \n";
|
||||
return true;
|
||||
}
|
||||
else
|
||||
{
|
||||
return false;
|
||||
}
|
||||
}
|
||||
|
||||
Galileo_FNAV_INAV_test()
|
||||
{
|
||||
// vars for Viterbi decoder
|
||||
int32_t max_states = 1 << mm; // 2^mm
|
||||
g_encoder[0] = 121; // Polynomial G1
|
||||
g_encoder[1] = 91; // Polynomial G2
|
||||
out0 = static_cast<int32_t *>(volk_gnsssdr_malloc(max_states * sizeof(int32_t), volk_gnsssdr_get_alignment()));
|
||||
out1 = static_cast<int32_t *>(volk_gnsssdr_malloc(max_states * sizeof(int32_t), volk_gnsssdr_get_alignment()));
|
||||
state0 = static_cast<int32_t *>(volk_gnsssdr_malloc(max_states * sizeof(int32_t), volk_gnsssdr_get_alignment()));
|
||||
state1 = static_cast<int32_t *>(volk_gnsssdr_malloc(max_states * sizeof(int32_t), volk_gnsssdr_get_alignment()));
|
||||
// create appropriate transition matrices
|
||||
nsc_transit(out0, state0, 0, g_encoder, KK, nn);
|
||||
nsc_transit(out1, state1, 1, g_encoder, KK, nn);
|
||||
flag_even_word_arrived = 0;
|
||||
}
|
||||
|
||||
~Galileo_FNAV_INAV_test()
|
||||
{
|
||||
volk_gnsssdr_free(out0);
|
||||
volk_gnsssdr_free(out1);
|
||||
volk_gnsssdr_free(state0);
|
||||
volk_gnsssdr_free(state1);
|
||||
}
|
||||
};
|
||||
|
||||
TEST_F(Galileo_FNAV_INAV_test, ValidationOfResults)
|
||||
{
|
||||
std::chrono::time_point<std::chrono::system_clock> start, end;
|
||||
std::chrono::duration<double> elapsed_seconds(0);
|
||||
|
||||
int repetitions = 10;
|
||||
// FNAV FULLY ENCODED FRAME
|
||||
double FNAV_frame[488] = {-1, 1, -1, -1, 1, -1, 1, 1, 1, -1, -1, 1, 1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
|
||||
1, -1, -1, 1, -1, -1, 1, 1, 1, -1, 1, -1, 1, 1, -1, 1, -1, -1, -1, -1, 1, -1, -1, 1, -1, -1, -1, -1, 1, 1, 1, 1, 1, 1,
|
||||
-1, 1, -1, 1, -1, 1, 1, -1, -1, 1, -1, 1, -1, 1, -1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, -1, 1, 1, -1, 1, -1, 1, -1,
|
||||
-1, 1, 1, -1, 1, 1, 1, 1, -1, 1, 1, 1, -1, 1, -1, 1, 1, -1, 1, -1, 1, 1, -1, 1, 1, 1, -1, -1, 1, 1, -1, -1, -1, -1,
|
||||
-1, -1, -1, -1, 1, 1, 1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 1, -1, 1, 1, 1, 1, -1, -1, -1, -1, -1, 1, 1,
|
||||
-1, -1, -1, 1, -1, -1, -1, -1, -1, 1, -1, 1, 1, 1, 1, 1, -1, -1, 1, -1, -1, 1, 1, 1, 1, -1, -1, -1, -1, 1, -1, -1, -1,
|
||||
-1, 1, -1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, -1, 1, 1, -1, -1, -1, -1, -1, 1, -1, -1, 1, 1, 1, 1, 1, 1, -1,
|
||||
-1, 1, -1, 1, -1, -1, 1, -1, 1, -1, -1, -1, -1, 1, -1, 1, 1, -1, 1, -1, -1, -1, 1, -1, 1, 1, -1, -1, -1, -1, -1, -1, -1,
|
||||
-1, -1, -1, -1, -1, -1, -1, -1, 1, 1, 1, -1, 1, -1, -1, 1, 1, 1, 1, 1, -1, -1, 1, 1, -1, -1, -1, 1, -1, 1, -1, 1, 1, -1,
|
||||
1, -1, 1, 1, -1, -1, -1, 1, 1, -1, 1, 1, 1, -1, -1, -1, -1, 1, -1, -1, -1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, -1,
|
||||
-1, 1, -1, 1, -1, -1, -1, -1, -1, 1, -1, 1, 1, -1, -1, 1, 1, 1, 1, 1, -1, 1, 1, 1, 1, 1, 1, -1, -1, -1, 1, -1, -1, -1, 1,
|
||||
1, -1, 1, -1, -1, 1, 1, -1, -1, -1, 1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 1, -1, 1, 1, 1, -1,
|
||||
-1, 1, -1, -1, -1, -1, 1, -1, -1, -1, -1, 1, 1, 1, -1, 1, -1, 1, -1, 1, 1, -1, -1, 1, -1, -1, 1, -1, 1, 1, 1, 1, -1, -1, 1,
|
||||
1, -1, -1, -1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, -1, 1, -1, -1, -1, 1, 1, 1, -1, 1, 1, 1, 1, -1, -1, -1, 1, 1, 1, 1, 1,
|
||||
1, -1, 1, -1, -1, 1, 1, 1, -1, -1, 1, -1, 1, 1};
|
||||
|
||||
ASSERT_NO_THROW({
|
||||
for (int n = 0; n < repetitions; n++)
|
||||
{
|
||||
EXPECT_EQ(decode_FNAV_word(&FNAV_frame[0], 488), true);
|
||||
}
|
||||
}) << "Exception during FNAV frame decoding";
|
||||
|
||||
|
||||
// INAV FULLY ENCODED FRAME
|
||||
double INAV_frame_even[240] = {-1, -1, 1, 1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
|
||||
-1, -1, -1, -1, -1, -1, -1, -1, -1, 1, 1, -1, -1, -1, 1, 1,
|
||||
-1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
|
||||
1, 1, 1, 1, 1, 1, 1, 1, -1, -1, 1, -1, -1, -1, 1, -1,
|
||||
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
|
||||
1, 1, 1, 1, 1, -1, 1, 1, -1, 1, 1, 1, 1, -1, -1, -1,
|
||||
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
|
||||
-1, -1, -1, 1, -1, 1, -1, -1, -1, -1, 1, 1, -1, -1, -1, -1,
|
||||
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
|
||||
-1, 1, -1, -1, -1, -1, 1, 1, -1, 1, 1, 1, 1, 1, 1, 1,
|
||||
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, -1,
|
||||
1, -1, 1, 1, -1, -1, -1, -1, 1, 1, 1, 1, 1, 1, 1, 1,
|
||||
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, -1, -1, -1, 1,
|
||||
-1, -1, 1, 1, 1, 1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
|
||||
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 1, 1, -1, 1, 1, 1};
|
||||
|
||||
double INAV_frame_odd[240] = {1, -1, 1, 1, 1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
|
||||
1, 1, 1, 1, -1, 1, -1, -1, 1, -1, 1, -1, -1, 1, -1, 1,
|
||||
1, 1, -1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, -1, -1,
|
||||
-1, -1, 1, 1, -1, 1, 1, 1, -1, 1, 1, 1, 1, -1, -1, 1,
|
||||
1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
|
||||
-1, 1, -1, 1, -1, 1, 1, -1, -1, 1, 1, 1, 1, -1, -1, -1,
|
||||
1, 1, 1, 1, 1, 1, 1, 1, 1, -1, 1, 1, 1, 1, -1, -1,
|
||||
1, -1, 1, -1, -1, -1, 1, 1, -1, -1, 1, -1, 1, 1, -1, -1,
|
||||
-1, -1, -1, -1, -1, -1, 1, -1, 1, 1, 1, 1, -1, 1, -1, 1,
|
||||
1, 1, -1, 1, 1, 1, 1, 1, -1, -1, -1, 1, 1, 1, 1, 1,
|
||||
1, 1, 1, 1, -1, 1, -1, -1, -1, -1, -1, 1, -1, 1, -1, 1,
|
||||
-1, -1, -1, -1, -1, -1, 1, 1, 1, 1, -1, -1, -1, -1, -1, -1,
|
||||
-1, -1, 1, -1, -1, -1, -1, -1, -1, 1, -1, 1, 1, 1, 1, 1,
|
||||
1, -1, -1, -1, -1, 1, 1, -1, 1, 1, 1, 1, 1, 1, 1, 1,
|
||||
1, 1, 1, 1, 1, 1, -1, -1, -1, -1, 1, 1, -1, -1, 1, 1};
|
||||
|
||||
ASSERT_NO_THROW({
|
||||
for (int n = 0; n < repetitions; n++)
|
||||
{
|
||||
decode_INAV_word(&INAV_frame_even[0], 240);
|
||||
EXPECT_EQ(decode_INAV_word(&INAV_frame_odd[0], 240), true);
|
||||
}
|
||||
}) << "Exception during INAV frame decoding";
|
||||
|
||||
|
||||
std::cout << "Galileo FNAV/INAV Test completed in " << elapsed_seconds.count() * 1e6 << " microseconds" << std::endl;
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user