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Merge branch 'next' of https://github.com/gnss-sdr/gnss-sdr into fpga

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This commit is contained in:
Marc Majoral 2018-10-17 15:49:58 +02:00
commit 17ddab1c3e
29 changed files with 1521 additions and 417 deletions
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8
cmake/Modules/FindGPSTK.cmake
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@ -24,10 +24,10 @@
# also defined, but not for general use are
# GPSTK_LIBRARY, where to find the GPSTK library.
FIND_PATH(GPSTK_INCLUDE_DIR Rinex3ObsBase.hpp
HINTS /usr/include/gpstk
/usr/local/include/gpstk
/opt/local/include/gpstk )
FIND_PATH(GPSTK_INCLUDE_DIR gpstk/Rinex3ObsBase.hpp
HINTS /usr/include
/usr/local/include
/opt/local/include )
SET(GPSTK_NAMES ${GPSTK_NAMES} gpstk libgpstk)
FIND_LIBRARY(GPSTK_LIBRARY NAMES ${GPSTK_NAMES}

2
src/algorithms/libs/rtklib/rtklib_pntpos.cc
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@ -246,7 +246,7 @@ double prange(const obsd_t *obs, const nav_t *nav, const double *azel,
else if (obs->code[i] != CODE_NONE and obs->code[j] == CODE_NONE)
{
P1 += P1_C1; /* C1->P1 */
PC = P1 + P1_P2;
PC = P1 - P1_P2;
}
else if (obs->code[i] == CODE_NONE and obs->code[j] != CODE_NONE)
{

122
src/algorithms/libs/volk_gnsssdr_module/volk_gnsssdr/kernels/volk_gnsssdr/volk_gnsssdr_32fc_32f_high_dynamic_rotator_dot_prod_32fc_xn.h Normal file
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@ -0,0 +1,122 @@
/*!
* \file volk_gnsssdr_32fc_32f_high_dynamic_rotator_dot_prod_32fc_xn.h
* \brief VOLK_GNSSSDR kernel: multiplies N complex (32-bit float per component) vectors
* by a common vector, phase rotated and accumulates the results in N float complex outputs.
* \authors <ul>
* <li> Antonio Ramos 2018. antonio.ramosdet(at)gmail.com
* </ul>
*
* VOLK_GNSSSDR kernel that multiplies N 32 bits complex vectors by a common vector, which is
* phase-rotated by phase offset and phase increment, and accumulates the results
* in N 32 bits float complex outputs.
* It is optimized to perform the N tap correlation process in GNSS receivers.
*
* -------------------------------------------------------------------------
*
* 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/>.
*
* -------------------------------------------------------------------------
*/
/*!
* \page volk_gnsssdr_32fc_32f_high_dynamic_rotator_dot_prod_32fc_xn
*
* \b Overview
*
* Rotates and multiplies the reference complex vector with an arbitrary number of other real vectors,
* accumulates the results and stores them in the output vector.
* The rotation is done at a fixed rate per sample, from an initial \p phase offset.
* This function can be used for Doppler wipe-off and multiple correlator.
*
* <b>Dispatcher Prototype</b>
* \code
* void volk_gnsssdr_32fc_32f_high_dynamic_rotator_dot_prod_32fc_xn(lv_32fc_t* result, const lv_32fc_t* in_common, const lv_32fc_t phase_inc, const lv_32fc_t phase_inc_rate, lv_32fc_t* phase, const float** in_a, int num_a_vectors, unsigned int num_points);
* \endcode
*
* \b Inputs
* \li in_common: Pointer to one of the vectors to be rotated, multiplied and accumulated (reference vector).
* \li phase_inc: Phase increment = lv_cmake(cos(phase_step_rad), sin(phase_step_rad))
* \li phase_inc_rate: Phase increment rate = lv_cmake(cos(phase_step_rate_rad), sin(phase_step_rate_rad))
* \li phase: Initial phase = lv_cmake(cos(initial_phase_rad), sin(initial_phase_rad))
* \li in_a: Pointer to an array of pointers to multiple vectors to be multiplied and accumulated.
* \li num_a_vectors: Number of vectors to be multiplied by the reference vector and accumulated.
* \li num_points: Number of complex values to be multiplied together, accumulated and stored into \p result.
*
* \b Outputs
* \li phase: Final phase.
* \li result: Vector of \p num_a_vectors components with the multiple vectors of \p in_a rotated, multiplied by \p in_common and accumulated.
*
*/
#ifndef INCLUDED_volk_gnsssdr_32fc_32f_high_dynamic_rotator_dot_prod_32fc_xn_H
#define INCLUDED_volk_gnsssdr_32fc_32f_high_dynamic_rotator_dot_prod_32fc_xn_H
#include <volk_gnsssdr/volk_gnsssdr.h>
#include <volk_gnsssdr/volk_gnsssdr_malloc.h>
#include <volk_gnsssdr/volk_gnsssdr_complex.h>
#include <volk_gnsssdr/saturation_arithmetic.h>
#include <math.h>
#ifdef LV_HAVE_GENERIC
static inline void volk_gnsssdr_32fc_32f_high_dynamic_rotator_dot_prod_32fc_xn_generic(lv_32fc_t* result, const lv_32fc_t* in_common, const lv_32fc_t phase_inc, const lv_32fc_t phase_inc_rate, lv_32fc_t* phase, const float** in_a, int num_a_vectors, unsigned int num_points)
{
lv_32fc_t tmp32_1;
#ifdef __cplusplus
lv_32fc_t half_phase_inc_rate = std::sqrt(phase_inc_rate);
#else
lv_32fc_t half_phase_inc_rate = csqrtf(phase_inc_rate);
#endif
lv_32fc_t constant_rotation = phase_inc * half_phase_inc_rate;
lv_32fc_t delta_phase_rate = lv_cmake(1.0f, 0.0f);
int n_vec;
unsigned int n;
for (n_vec = 0; n_vec < num_a_vectors; n_vec++)
{
result[n_vec] = lv_cmake(0.0f, 0.0f);
}
for (n = 0; n < num_points; n++)
{
tmp32_1 = *in_common++ * (*phase);
// Regenerate phase
if (n % 256 == 0)
{
#ifdef __cplusplus
(*phase) /= std::abs((*phase));
delta_phase_rate /= std::abs(delta_phase_rate);
#else
(*phase) /= hypotf(lv_creal(*phase), lv_cimag(*phase));
delta_phase_rate /= hypotf(lv_creal(delta_phase_rate), lv_cimag(delta_phase_rate));
#endif
}
(*phase) *= (constant_rotation * delta_phase_rate);
delta_phase_rate *= phase_inc_rate;
for (n_vec = 0; n_vec < num_a_vectors; n_vec++)
{
result[n_vec] += (tmp32_1 * in_a[n_vec][n]);
}
}
}
#endif /*LV_HAVE_GENERIC*/
#endif /* INCLUDED_volk_gnsssdr_32fc_32f_high_dynamic_rotator_dot_prod_32fc_xn_H */

163
src/algorithms/libs/volk_gnsssdr_module/volk_gnsssdr/kernels/volk_gnsssdr/volk_gnsssdr_32fc_32f_high_dynamic_rotator_dotprodxnpuppet_32fc.h Normal file
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@ -0,0 +1,163 @@
/*!
* \file volk_gnsssdr_32fc_32f_rotator_dotprodxnpuppet_32fc.h
* \brief Volk puppet for the multiple 16-bit complex dot product kernel.
* \authors <ul>
* <li> Carles Fernandez Prades 2016 cfernandez at cttc dot cat
* </ul>
*
* Volk puppet for integrating the resampler into volk's test system
*
* -------------------------------------------------------------------------
*
* 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 INCLUDED_volk_gnsssdr_32fc_32f_high_dynamic_rotator_dotprodxnpuppet_32fc_H
#define INCLUDED_volk_gnsssdr_32fc_32f_high_dynamic_rotator_dotprodxnpuppet_32fc_H
#include "volk_gnsssdr/volk_gnsssdr_32fc_32f_high_dynamic_rotator_dot_prod_32fc_xn.h"
#include <volk_gnsssdr/volk_gnsssdr_malloc.h>
#include <volk_gnsssdr/volk_gnsssdr.h>
#include <string.h>
#ifdef LV_HAVE_GENERIC
static inline void volk_gnsssdr_32fc_32f_high_dynamic_rotator_dotprodxnpuppet_32fc_generic(lv_32fc_t* result, const lv_32fc_t* local_code, const float* in, unsigned int num_points)
{
// phases must be normalized. Phase rotator expects a complex exponential input!
float rem_carrier_phase_in_rad = 0.25;
float phase_step_rad = 0.1;
lv_32fc_t phase[1];
phase[0] = lv_cmake(cos(rem_carrier_phase_in_rad), sin(rem_carrier_phase_in_rad));
lv_32fc_t phase_inc[1];
phase_inc[0] = lv_cmake(cos(phase_step_rad), sin(phase_step_rad));
lv_32fc_t phase_inc_rate[1];
phase_inc_rate[0] = lv_cmake(cos(phase_step_rad * 0.001), sin(phase_step_rad * 0.001));
int n;
int num_a_vectors = 3;
float** in_a = (float**)volk_gnsssdr_malloc(sizeof(float*) * num_a_vectors, volk_gnsssdr_get_alignment());
for (n = 0; n < num_a_vectors; n++)
{
in_a[n] = (float*)volk_gnsssdr_malloc(sizeof(float) * num_points, volk_gnsssdr_get_alignment());
memcpy((float*)in_a[n], (float*)in, sizeof(float) * num_points);
}
volk_gnsssdr_32fc_32f_high_dynamic_rotator_dot_prod_32fc_xn_generic(result, local_code, phase_inc[0], phase_inc_rate[0], phase, (const float**)in_a, num_a_vectors, num_points);
for (n = 0; n < num_a_vectors; n++)
{
volk_gnsssdr_free(in_a[n]);
}
volk_gnsssdr_free(in_a);
}
#endif // Generic
//
//#ifdef LV_HAVE_GENERIC
//static inline void volk_gnsssdr_32fc_32f_rotator_dotprodxnpuppet_32fc_generic_reload(lv_32fc_t* result, const lv_32fc_t* local_code, const float* in, unsigned int num_points)
//{
// // phases must be normalized. Phase rotator expects a complex exponential input!
// float rem_carrier_phase_in_rad = 0.25;
// float phase_step_rad = 0.1;
// lv_32fc_t phase[1];
// phase[0] = lv_cmake(cos(rem_carrier_phase_in_rad), sin(rem_carrier_phase_in_rad));
// lv_32fc_t phase_inc[1];
// phase_inc[0] = lv_cmake(cos(phase_step_rad), sin(phase_step_rad));
// int n;
// int num_a_vectors = 3;
// float** in_a = (float**)volk_gnsssdr_malloc(sizeof(float*) * num_a_vectors, volk_gnsssdr_get_alignment());
// for (n = 0; n < num_a_vectors; n++)
// {
// in_a[n] = (float*)volk_gnsssdr_malloc(sizeof(float) * num_points, volk_gnsssdr_get_alignment());
// memcpy((float*)in_a[n], (float*)in, sizeof(float) * num_points);
// }
// volk_gnsssdr_32fc_32f_rotator_dot_prod_32fc_xn_generic_reload(result, local_code, phase_inc[0], phase, (const float**)in_a, num_a_vectors, num_points);
//
// for (n = 0; n < num_a_vectors; n++)
// {
// volk_gnsssdr_free(in_a[n]);
// }
// volk_gnsssdr_free(in_a);
//}
//
//#endif // Generic
//
//#ifdef LV_HAVE_AVX
//static inline void volk_gnsssdr_32fc_32f_rotator_dotprodxnpuppet_32fc_u_avx(lv_32fc_t* result, const lv_32fc_t* local_code, const float* in, unsigned int num_points)
//{
// // phases must be normalized. Phase rotator expects a complex exponential input!
// float rem_carrier_phase_in_rad = 0.25;
// float phase_step_rad = 0.1;
// lv_32fc_t phase[1];
// phase[0] = lv_cmake(cos(rem_carrier_phase_in_rad), sin(rem_carrier_phase_in_rad));
// lv_32fc_t phase_inc[1];
// phase_inc[0] = lv_cmake(cos(phase_step_rad), sin(phase_step_rad));
// int n;
// int num_a_vectors = 3;
// float** in_a = (float**)volk_gnsssdr_malloc(sizeof(float*) * num_a_vectors, volk_gnsssdr_get_alignment());
// for (n = 0; n < num_a_vectors; n++)
// {
// in_a[n] = (float*)volk_gnsssdr_malloc(sizeof(float) * num_points, volk_gnsssdr_get_alignment());
// memcpy((float*)in_a[n], (float*)in, sizeof(float) * num_points);
// }
// volk_gnsssdr_32fc_32f_rotator_dot_prod_32fc_xn_u_avx(result, local_code, phase_inc[0], phase, (const float**)in_a, num_a_vectors, num_points);
//
// for (n = 0; n < num_a_vectors; n++)
// {
// volk_gnsssdr_free(in_a[n]);
// }
// volk_gnsssdr_free(in_a);
//}
//
//#endif // AVX
//
//
//#ifdef LV_HAVE_AVX
//static inline void volk_gnsssdr_32fc_32f_rotator_dotprodxnpuppet_32fc_a_avx(lv_32fc_t* result, const lv_32fc_t* local_code, const float* in, unsigned int num_points)
//{
// // phases must be normalized. Phase rotator expects a complex exponential input!
// float rem_carrier_phase_in_rad = 0.25;
// float phase_step_rad = 0.1;
// lv_32fc_t phase[1];
// phase[0] = lv_cmake(cos(rem_carrier_phase_in_rad), sin(rem_carrier_phase_in_rad));
// lv_32fc_t phase_inc[1];
// phase_inc[0] = lv_cmake(cos(phase_step_rad), sin(phase_step_rad));
// int n;
// int num_a_vectors = 3;
// float** in_a = (float**)volk_gnsssdr_malloc(sizeof(float*) * num_a_vectors, volk_gnsssdr_get_alignment());
// for (n = 0; n < num_a_vectors; n++)
// {
// in_a[n] = (float*)volk_gnsssdr_malloc(sizeof(float) * num_points, volk_gnsssdr_get_alignment());
// memcpy((float*)in_a[n], (float*)in, sizeof(float) * num_points);
// }
// volk_gnsssdr_32fc_32f_rotator_dot_prod_32fc_xn_a_avx(result, local_code, phase_inc[0], phase, (const float**)in_a, num_a_vectors, num_points);
//
// for (n = 0; n < num_a_vectors; n++)
// {
// volk_gnsssdr_free(in_a[n]);
// }
// volk_gnsssdr_free(in_a);
//}
//
//#endif // AVX
#endif // INCLUDED_volk_gnsssdr_32fc_32f_high_dynamic_rotator_dotprodxnpuppet_32fc_H

1
src/algorithms/libs/volk_gnsssdr_module/volk_gnsssdr/lib/kernel_tests.h
View File

@ -99,6 +99,7 @@ std::vector<volk_gnsssdr_test_case_t> init_test_list(volk_gnsssdr_test_params_t
QA(VOLK_INIT_PUPP(volk_gnsssdr_16ic_16i_rotator_dotprodxnpuppet_16ic, volk_gnsssdr_16ic_16i_rotator_dot_prod_16ic_xn, test_params_int16))
QA(VOLK_INIT_PUPP(volk_gnsssdr_32fc_x2_rotator_dotprodxnpuppet_32fc, volk_gnsssdr_32fc_x2_rotator_dot_prod_32fc_xn, test_params_int1))
QA(VOLK_INIT_PUPP(volk_gnsssdr_32fc_32f_rotator_dotprodxnpuppet_32fc, volk_gnsssdr_32fc_32f_rotator_dot_prod_32fc_xn, test_params_int1));
QA(VOLK_INIT_PUPP(volk_gnsssdr_32fc_32f_high_dynamic_rotator_dotprodxnpuppet_32fc, volk_gnsssdr_32fc_32f_high_dynamic_rotator_dot_prod_32fc_xn, test_params_int1));
return test_cases;
}

2
src/algorithms/observables/gnuradio_blocks/hybrid_observables_cc.cc
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@ -484,7 +484,7 @@ int hybrid_observables_cc::general_work(int noutput_items __attribute__((unused)
if (T_rx_clock_step_samples == 0)
{
T_rx_clock_step_samples = std::round(static_cast<double>(in[d_nchannels_in - 1][0].fs) * 1e-3); // 1 ms
std::cout << "Observables clock step samples set to " << T_rx_clock_step_samples << std::endl;
LOG(INFO) << "Observables clock step samples set to " << T_rx_clock_step_samples;
usleep(1000000);
}

10
src/algorithms/tracking/adapters/galileo_e1_dll_pll_veml_tracking.cc
View File

@ -59,6 +59,16 @@ GalileoE1DllPllVemlTracking::GalileoE1DllPllVemlTracking(
trk_param.fs_in = fs_in;
bool dump = configuration->property(role + ".dump", false);
trk_param.dump = dump;
trk_param.high_dyn = configuration->property(role + ".high_dyn", false);
if (configuration->property(role + ".smoother_length", 10) < 1)
{
trk_param.smoother_length = 1;
std::cout << TEXT_RED << "WARNING: Gal. E1. smoother_length must be bigger than 0. It has been set to 1" << TEXT_RESET << std::endl;
}
else
{
trk_param.smoother_length = configuration->property(role + ".smoother_length", 10);
}
float pll_bw_hz = configuration->property(role + ".pll_bw_hz", 5.0);
if (FLAGS_pll_bw_hz != 0.0) pll_bw_hz = static_cast<float>(FLAGS_pll_bw_hz);
trk_param.pll_bw_hz = pll_bw_hz;

10
src/algorithms/tracking/adapters/galileo_e5a_dll_pll_tracking.cc
View File

@ -59,6 +59,16 @@ GalileoE5aDllPllTracking::GalileoE5aDllPllTracking(
trk_param.fs_in = fs_in;
bool dump = configuration->property(role + ".dump", false);
trk_param.dump = dump;
trk_param.high_dyn = configuration->property(role + ".high_dyn", false);
if (configuration->property(role + ".smoother_length", 10) < 1)
{
trk_param.smoother_length = 1;
std::cout << TEXT_RED << "WARNING: Gal. E5a. smoother_length must be bigger than 0. It has been set to 1" << TEXT_RESET << std::endl;
}
else
{
trk_param.smoother_length = configuration->property(role + ".smoother_length", 10);
}
float pll_bw_hz = configuration->property(role + ".pll_bw_hz", 20.0);
if (FLAGS_pll_bw_hz != 0.0) pll_bw_hz = static_cast<float>(FLAGS_pll_bw_hz);
trk_param.pll_bw_hz = pll_bw_hz;

10
src/algorithms/tracking/adapters/gps_l1_ca_dll_pll_tracking.cc
View File

@ -57,6 +57,16 @@ GpsL1CaDllPllTracking::GpsL1CaDllPllTracking(
int fs_in_deprecated = configuration->property("GNSS-SDR.internal_fs_hz", 2048000);
int fs_in = configuration->property("GNSS-SDR.internal_fs_sps", fs_in_deprecated);
trk_param.fs_in = fs_in;
trk_param.high_dyn = configuration->property(role + ".high_dyn", false);
if (configuration->property(role + ".smoother_length", 10) < 1)
{
trk_param.smoother_length = 1;
std::cout << TEXT_RED << "WARNING: GPS L1 C/A. smoother_length must be bigger than 0. It has been set to 1" << TEXT_RESET << std::endl;
}
else
{
trk_param.smoother_length = configuration->property(role + ".smoother_length", 10);
}
bool dump = configuration->property(role + ".dump", false);
trk_param.dump = dump;
float pll_bw_hz = configuration->property(role + ".pll_bw_hz", 50.0);

10
src/algorithms/tracking/adapters/gps_l5_dll_pll_tracking.cc
View File

@ -59,6 +59,16 @@ GpsL5DllPllTracking::GpsL5DllPllTracking(
trk_param.fs_in = fs_in;
bool dump = configuration->property(role + ".dump", false);
trk_param.dump = dump;
trk_param.high_dyn = configuration->property(role + ".high_dyn", false);
if (configuration->property(role + ".smoother_length", 10) < 1)
{
trk_param.smoother_length = 1;
std::cout << TEXT_RED << "WARNING: GPS L5. smoother_length must be bigger than 0. It has been set to 1" << TEXT_RESET << std::endl;
}
else
{
trk_param.smoother_length = configuration->property(role + ".smoother_length", 10);
}
float pll_bw_hz = configuration->property(role + ".pll_bw_hz", 50.0);
if (FLAGS_pll_bw_hz != 0.0) pll_bw_hz = static_cast<float>(FLAGS_pll_bw_hz);
trk_param.pll_bw_hz = pll_bw_hz;

102
src/algorithms/tracking/gnuradio_blocks/dll_pll_veml_tracking.cc
View File

@ -58,6 +58,7 @@
#include <cmath>
#include <iostream>
#include <sstream>
#include <numeric>
using google::LogMessage;
@ -355,6 +356,7 @@ dll_pll_veml_tracking::dll_pll_veml_tracking(const Dll_Pll_Conf &conf_) : gr::bl
{
// Extra correlator for the data component
correlator_data_cpu.init(2 * trk_parameters.vector_length, 1);
correlator_data_cpu.set_high_dynamics_resampler(trk_parameters.high_dyn);
d_data_code = static_cast<float *>(volk_gnsssdr_malloc(2 * d_code_length_chips * sizeof(float), volk_gnsssdr_get_alignment()));
}
else
@ -363,7 +365,7 @@ dll_pll_veml_tracking::dll_pll_veml_tracking(const Dll_Pll_Conf &conf_) : gr::bl
}
// --- Initializations ---
multicorrelator_cpu.set_high_dynamics_resampler(trk_parameters.use_high_dynamics_resampler);
multicorrelator_cpu.set_high_dynamics_resampler(trk_parameters.high_dyn);
// Initial code frequency basis of NCO
d_code_freq_chips = d_code_chip_rate;
// Residual code phase (in chips)
@ -397,12 +399,22 @@ dll_pll_veml_tracking::dll_pll_veml_tracking(const Dll_Pll_Conf &conf_) : gr::bl
d_code_phase_step_chips = 0.0;
d_code_phase_rate_step_chips = 0.0;
d_carrier_phase_step_rad = 0.0;
d_carrier_phase_rate_step_rad = 0.0;
d_rem_code_phase_chips = 0.0;
d_K_blk_samples = 0.0;
d_code_phase_samples = 0.0;
d_last_prompt = gr_complex(0.0, 0.0);
d_state = 0; // initial state: standby
clear_tracking_vars();
if (trk_parameters.smoother_length > 0)
{
d_carr_ph_history.resize(trk_parameters.smoother_length * 2);
d_code_ph_history.resize(trk_parameters.smoother_length * 2);
}
else
{
d_carr_ph_history.resize(1);
d_code_ph_history.resize(1);
}
}
@ -424,6 +436,7 @@ void dll_pll_veml_tracking::start_tracking()
// new chip and PRN sequence periods based on acq Doppler
d_code_freq_chips = radial_velocity * d_code_chip_rate;
d_code_phase_step_chips = d_code_freq_chips / trk_parameters.fs_in;
d_code_phase_rate_step_chips = 0.0;
double T_chip_mod_seconds = 1.0 / d_code_freq_chips;
double T_prn_mod_seconds = T_chip_mod_seconds * static_cast<double>(d_code_length_chips);
double T_prn_mod_samples = T_prn_mod_seconds * trk_parameters.fs_in;
@ -446,7 +459,9 @@ void dll_pll_veml_tracking::start_tracking()
d_carrier_doppler_hz = d_acq_carrier_doppler_hz;
d_carrier_phase_step_rad = PI_2 * d_carrier_doppler_hz / trk_parameters.fs_in;
d_carrier_phase_rate_step_rad = 0.0;
d_carr_ph_history.clear();
d_code_ph_history.clear();
// DLL/PLL filter initialization
d_carrier_loop_filter.initialize(); // initialize the carrier filter
d_code_loop_filter.initialize(); // initialize the code filter
@ -706,7 +721,7 @@ void dll_pll_veml_tracking::do_correlation_step(const gr_complex *input_samples)
multicorrelator_cpu.set_input_output_vectors(d_correlator_outs, input_samples);
multicorrelator_cpu.Carrier_wipeoff_multicorrelator_resampler(
d_rem_carr_phase_rad,
d_carrier_phase_step_rad,
d_carrier_phase_step_rad, d_carrier_phase_rate_step_rad,
static_cast<float>(d_rem_code_phase_chips) * static_cast<float>(d_code_samples_per_chip),
static_cast<float>(d_code_phase_step_chips) * static_cast<float>(d_code_samples_per_chip),
static_cast<float>(d_code_phase_rate_step_chips) * static_cast<float>(d_code_samples_per_chip),
@ -718,7 +733,7 @@ void dll_pll_veml_tracking::do_correlation_step(const gr_complex *input_samples)
correlator_data_cpu.set_input_output_vectors(d_Prompt_Data, input_samples);
correlator_data_cpu.Carrier_wipeoff_multicorrelator_resampler(
d_rem_carr_phase_rad,
d_carrier_phase_step_rad,
d_carrier_phase_step_rad, d_carrier_phase_rate_step_rad,
static_cast<float>(d_rem_code_phase_chips) * static_cast<float>(d_code_samples_per_chip),
static_cast<float>(d_code_phase_step_chips) * static_cast<float>(d_code_samples_per_chip),
static_cast<float>(d_code_phase_rate_step_chips) * static_cast<float>(d_code_samples_per_chip),
@ -777,6 +792,10 @@ void dll_pll_veml_tracking::clear_tracking_vars()
d_current_symbol = 0;
d_Prompt_buffer_deque.clear();
d_last_prompt = gr_complex(0.0, 0.0);
d_carrier_phase_rate_step_rad = 0.0;
d_code_phase_rate_step_chips = 0.0;
d_carr_ph_history.clear();
d_code_ph_history.clear();
}
@ -796,15 +815,60 @@ void dll_pll_veml_tracking::update_tracking_vars()
//################### PLL COMMANDS #################################################
// carrier phase step (NCO phase increment per sample) [rads/sample]
d_carrier_phase_step_rad = PI_2 * d_carrier_doppler_hz / trk_parameters.fs_in;
// carrier phase rate step (NCO phase increment rate per sample) [rads/sample^2]
if (trk_parameters.high_dyn)
{
d_carr_ph_history.push_back(std::pair<double, double>(d_carrier_phase_step_rad, static_cast<double>(d_current_prn_length_samples)));
if (d_carr_ph_history.full())
{
double tmp_cp1 = 0.0;
double tmp_cp2 = 0.0;
double tmp_samples = 0.0;
for (unsigned int k = 0; k < trk_parameters.smoother_length; k++)
{
tmp_cp1 += d_carr_ph_history.at(k).first;
tmp_cp2 += d_carr_ph_history.at(trk_parameters.smoother_length * 2 - k - 1).first;
tmp_samples += d_carr_ph_history.at(trk_parameters.smoother_length * 2 - k - 1).second;
}
tmp_cp1 /= static_cast<double>(trk_parameters.smoother_length);
tmp_cp2 /= static_cast<double>(trk_parameters.smoother_length);
d_carrier_phase_rate_step_rad = (tmp_cp2 - tmp_cp1) / tmp_samples;
}
}
//std::cout << d_carrier_phase_rate_step_rad * trk_parameters.fs_in * trk_parameters.fs_in / PI_2 << std::endl;
// remnant carrier phase to prevent overflow in the code NCO
d_rem_carr_phase_rad += d_carrier_phase_step_rad * static_cast<double>(d_current_prn_length_samples);
d_rem_carr_phase_rad += static_cast<float>(d_carrier_phase_step_rad * static_cast<double>(d_current_prn_length_samples) + 0.5 * d_carrier_phase_rate_step_rad * static_cast<double>(d_current_prn_length_samples) * static_cast<double>(d_current_prn_length_samples));
d_rem_carr_phase_rad = fmod(d_rem_carr_phase_rad, PI_2);
// carrier phase accumulator
d_acc_carrier_phase_rad -= d_carrier_phase_step_rad * static_cast<double>(d_current_prn_length_samples);
//double a = d_carrier_phase_step_rad * static_cast<double>(d_current_prn_length_samples);
//double b = 0.5 * d_carrier_phase_rate_step_rad * static_cast<double>(d_current_prn_length_samples) * static_cast<double>(d_current_prn_length_samples);
//std::cout << fmod(b, PI_2) / fmod(a, PI_2) << std::endl;
d_acc_carrier_phase_rad -= (d_carrier_phase_step_rad * static_cast<double>(d_current_prn_length_samples) + 0.5 * d_carrier_phase_rate_step_rad * static_cast<double>(d_current_prn_length_samples) * static_cast<double>(d_current_prn_length_samples));
//################### DLL COMMANDS #################################################
// code phase step (Code resampler phase increment per sample) [chips/sample]
d_code_phase_step_chips = d_code_freq_chips / trk_parameters.fs_in;
if (trk_parameters.high_dyn)
{
d_code_ph_history.push_back(std::pair<double, double>(d_code_phase_step_chips, static_cast<double>(d_current_prn_length_samples)));
if (d_code_ph_history.full())
{
double tmp_cp1 = 0.0;
double tmp_cp2 = 0.0;
double tmp_samples = 0.0;
for (unsigned int k = 0; k < trk_parameters.smoother_length; k++)
{
tmp_cp1 += d_code_ph_history.at(k).first;
tmp_cp2 += d_code_ph_history.at(trk_parameters.smoother_length * 2 - k - 1).first;
tmp_samples += d_code_ph_history.at(trk_parameters.smoother_length * 2 - k - 1).second;
}
tmp_cp1 /= static_cast<double>(trk_parameters.smoother_length);
tmp_cp2 /= static_cast<double>(trk_parameters.smoother_length);
d_code_phase_rate_step_chips = (tmp_cp2 - tmp_cp1) / tmp_samples;
}
}
// remnant code phase [chips]
d_rem_code_phase_samples = K_blk_samples - static_cast<double>(d_current_prn_length_samples); // rounding error < 1 sample
d_rem_code_phase_chips = d_code_freq_chips * d_rem_code_phase_samples / trk_parameters.fs_in;
@ -947,8 +1011,14 @@ void dll_pll_veml_tracking::log_data(bool integrating)
// carrier and code frequency
tmp_float = d_carrier_doppler_hz;
d_dump_file.write(reinterpret_cast<char *>(&tmp_float), sizeof(float));
// carrier phase rate [Hz/s]
tmp_float = d_carrier_phase_rate_step_rad * trk_parameters.fs_in * trk_parameters.fs_in / PI_2;
d_dump_file.write(reinterpret_cast<char *>(&tmp_float), sizeof(float));
tmp_float = d_code_freq_chips;
d_dump_file.write(reinterpret_cast<char *>(&tmp_float), sizeof(float));
// code phase rate [chips/s^2]
tmp_float = d_code_phase_rate_step_chips * trk_parameters.fs_in * trk_parameters.fs_in;
d_dump_file.write(reinterpret_cast<char *>(&tmp_float), sizeof(float));
// PLL commands
tmp_float = d_carr_error_hz;
d_dump_file.write(reinterpret_cast<char *>(&tmp_float), sizeof(float));
@ -986,7 +1056,7 @@ int32_t dll_pll_veml_tracking::save_matfile()
// READ DUMP FILE
std::ifstream::pos_type size;
int32_t number_of_double_vars = 1;
int32_t number_of_float_vars = 17;
int32_t number_of_float_vars = 19;
int32_t epoch_size_bytes = sizeof(uint64_t) + sizeof(double) * number_of_double_vars +
sizeof(float) * number_of_float_vars + sizeof(uint32_t);
std::ifstream dump_file;
@ -1022,7 +1092,9 @@ int32_t dll_pll_veml_tracking::save_matfile()
uint64_t *PRN_start_sample_count = new uint64_t[num_epoch];
float *acc_carrier_phase_rad = new float[num_epoch];
float *carrier_doppler_hz = new float[num_epoch];
float *carrier_doppler_rate_hz = new float[num_epoch];
float *code_freq_chips = new float[num_epoch];
float *code_freq_rate_chips = new float[num_epoch];
float *carr_error_hz = new float[num_epoch];
float *carr_error_filt_hz = new float[num_epoch];
float *code_error_chips = new float[num_epoch];
@ -1049,7 +1121,9 @@ int32_t dll_pll_veml_tracking::save_matfile()
dump_file.read(reinterpret_cast<char *>(&PRN_start_sample_count[i]), sizeof(uint64_t));
dump_file.read(reinterpret_cast<char *>(&acc_carrier_phase_rad[i]), sizeof(float));
dump_file.read(reinterpret_cast<char *>(&carrier_doppler_hz[i]), sizeof(float));
dump_file.read(reinterpret_cast<char *>(&carrier_doppler_rate_hz[i]), sizeof(float));
dump_file.read(reinterpret_cast<char *>(&code_freq_chips[i]), sizeof(float));
dump_file.read(reinterpret_cast<char *>(&code_freq_rate_chips[i]), sizeof(float));
dump_file.read(reinterpret_cast<char *>(&carr_error_hz[i]), sizeof(float));
dump_file.read(reinterpret_cast<char *>(&carr_error_filt_hz[i]), sizeof(float));
dump_file.read(reinterpret_cast<char *>(&code_error_chips[i]), sizeof(float));
@ -1076,7 +1150,9 @@ int32_t dll_pll_veml_tracking::save_matfile()
delete[] PRN_start_sample_count;
delete[] acc_carrier_phase_rad;
delete[] carrier_doppler_hz;
delete[] carrier_doppler_rate_hz;
delete[] code_freq_chips;
delete[] code_freq_rate_chips;
delete[] carr_error_hz;
delete[] carr_error_filt_hz;
delete[] code_error_chips;
@ -1139,10 +1215,18 @@ int32_t dll_pll_veml_tracking::save_matfile()
Mat_VarWrite(matfp, matvar, MAT_COMPRESSION_ZLIB); // or MAT_COMPRESSION_NONE
Mat_VarFree(matvar);
matvar = Mat_VarCreate("carrier_doppler_rate_hz", MAT_C_SINGLE, MAT_T_SINGLE, 2, dims, carrier_doppler_rate_hz, 0);
Mat_VarWrite(matfp, matvar, MAT_COMPRESSION_ZLIB); // or MAT_COMPRESSION_NONE
Mat_VarFree(matvar);
matvar = Mat_VarCreate("code_freq_chips", MAT_C_SINGLE, MAT_T_SINGLE, 2, dims, code_freq_chips, 0);
Mat_VarWrite(matfp, matvar, MAT_COMPRESSION_ZLIB); // or MAT_COMPRESSION_NONE
Mat_VarFree(matvar);
matvar = Mat_VarCreate("code_freq_rate_chips", MAT_C_SINGLE, MAT_T_SINGLE, 2, dims, code_freq_rate_chips, 0);
Mat_VarWrite(matfp, matvar, MAT_COMPRESSION_ZLIB); // or MAT_COMPRESSION_NONE
Mat_VarFree(matvar);
matvar = Mat_VarCreate("carr_error_hz", MAT_C_SINGLE, MAT_T_SINGLE, 2, dims, carr_error_hz, 0);
Mat_VarWrite(matfp, matvar, MAT_COMPRESSION_ZLIB); // or MAT_COMPRESSION_NONE
Mat_VarFree(matvar);
@ -1190,7 +1274,9 @@ int32_t dll_pll_veml_tracking::save_matfile()
delete[] PRN_start_sample_count;
delete[] acc_carrier_phase_rad;
delete[] carrier_doppler_hz;
delete[] carrier_doppler_rate_hz;
delete[] code_freq_chips;
delete[] code_freq_rate_chips;
delete[] carr_error_hz;
delete[] carr_error_filt_hz;
delete[] code_error_chips;

7
src/algorithms/tracking/gnuradio_blocks/dll_pll_veml_tracking.h
View File

@ -41,6 +41,7 @@
#include <string>
#include <map>
#include <queue>
#include <utility>
#include <boost/circular_buffer.hpp>
class dll_pll_veml_tracking;
@ -146,10 +147,13 @@ private:
double d_code_phase_step_chips;
double d_code_phase_rate_step_chips;
boost::circular_buffer<std::pair<double, double>> d_code_ph_history;
double d_carrier_phase_step_rad;
double d_carrier_phase_rate_step_rad;
boost::circular_buffer<std::pair<double, double>> d_carr_ph_history;
// remaining code phase and carrier phase between tracking loops
double d_rem_code_phase_samples;
double d_rem_carr_phase_rad;
float d_rem_carr_phase_rad;
// PLL and DLL filter library
Tracking_2nd_DLL_filter d_code_loop_filter;
@ -164,7 +168,6 @@ private:
double d_carr_error_filt_hz;
double d_code_error_chips;
double d_code_error_filt_chips;
double d_K_blk_samples;
double d_code_freq_chips;
double d_carrier_doppler_hz;
double d_acc_carrier_phase_rad;

27
src/algorithms/tracking/libs/cpu_multicorrelator_real_codes.cc
View File

@ -125,7 +125,32 @@ void cpu_multicorrelator_real_codes::update_local_code(int correlator_length_sam
}
}
// Overload Carrier_wipeoff_multicorrelator_resampler to ensure back compatibility
bool cpu_multicorrelator_real_codes::Carrier_wipeoff_multicorrelator_resampler(
float rem_carrier_phase_in_rad,
float phase_step_rad,
float phase_rate_step_rad,
float rem_code_phase_chips,
float code_phase_step_chips,
float code_phase_rate_step_chips,
int signal_length_samples)
{
update_local_code(signal_length_samples, rem_code_phase_chips, code_phase_step_chips, code_phase_rate_step_chips);
// Regenerate phase at each call in order to avoid numerical issues
lv_32fc_t phase_offset_as_complex[1];
phase_offset_as_complex[0] = lv_cmake(std::cos(rem_carrier_phase_in_rad), -std::sin(rem_carrier_phase_in_rad));
// call VOLK_GNSSSDR kernel
if (d_use_high_dynamics_resampler)
{
volk_gnsssdr_32fc_32f_high_dynamic_rotator_dot_prod_32fc_xn(d_corr_out, d_sig_in, std::exp(lv_32fc_t(0.0, -phase_step_rad)), std::exp(lv_32fc_t(0.0, -phase_rate_step_rad)), phase_offset_as_complex, const_cast<const float**>(d_local_codes_resampled), d_n_correlators, signal_length_samples);
}
else
{
volk_gnsssdr_32fc_32f_rotator_dot_prod_32fc_xn(d_corr_out, d_sig_in, std::exp(lv_32fc_t(0.0, -phase_step_rad)), phase_offset_as_complex, const_cast<const float**>(d_local_codes_resampled), d_n_correlators, signal_length_samples);
}
return true;
}
// Overload Carrier_wipeoff_multicorrelator_resampler to ensure back compatibility
bool cpu_multicorrelator_real_codes::Carrier_wipeoff_multicorrelator_resampler(
float rem_carrier_phase_in_rad,
float phase_step_rad,

2
src/algorithms/tracking/libs/cpu_multicorrelator_real_codes.h
View File

@ -52,6 +52,8 @@ public:
bool set_local_code_and_taps(int code_length_chips, const float *local_code_in, float *shifts_chips);
bool set_input_output_vectors(std::complex<float> *corr_out, const std::complex<float> *sig_in);
void update_local_code(int correlator_length_samples, float rem_code_phase_chips, float code_phase_step_chips, float code_phase_rate_step_chips = 0.0);
// Overload Carrier_wipeoff_multicorrelator_resampler to ensure back compatibility
bool Carrier_wipeoff_multicorrelator_resampler(float rem_carrier_phase_in_rad, float phase_step_rad, float phase_rate_step_rad, float rem_code_phase_chips, float code_phase_step_chips, float code_phase_rate_step_chips, int signal_length_samples);
bool Carrier_wipeoff_multicorrelator_resampler(float rem_carrier_phase_in_rad, float phase_step_rad, float rem_code_phase_chips, float code_phase_step_chips, float code_phase_rate_step_chips, int signal_length_samples);
bool free();

3
src/algorithms/tracking/libs/dll_pll_conf.cc
View File

@ -36,7 +36,8 @@
Dll_Pll_Conf::Dll_Pll_Conf()
{
/* DLL/PLL tracking configuration */
use_high_dynamics_resampler = true;
high_dyn = false;
smoother_length = 10;
fs_in = 0.0;
vector_length = 0U;
dump = false;

3
src/algorithms/tracking/libs/dll_pll_conf.h
View File

@ -56,11 +56,12 @@ public:
float early_late_space_narrow_chips;
float very_early_late_space_narrow_chips;
int32_t extend_correlation_symbols;
bool use_high_dynamics_resampler;
bool high_dyn;
int32_t cn0_samples;
int32_t carrier_lock_det_mav_samples;
int32_t cn0_min;
int32_t max_lock_fail;
uint32_t smoother_length;
double carrier_lock_th;
bool track_pilot;
char system;

6
src/tests/CMakeLists.txt
View File

@ -228,7 +228,10 @@ if(ENABLE_UNIT_TESTING_EXTRA OR ENABLE_SYSTEM_TESTING_EXTRA OR ENABLE_FPGA)
find_package(GPSTK)
if(NOT GPSTK_FOUND OR ENABLE_OWN_GPSTK)
message(STATUS "GPSTk v${GNSSSDR_GPSTK_LOCAL_VERSION} will be automatically downloaded and built when doing 'make'.")
if ("${TOOLCHAIN_ARG}" STREQUAL "")
set(TOOLCHAIN_ARG "-DCMAKE_CXX_FLAGS=\"-Wno-deprecated\"")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-deprecated")
endif("${TOOLCHAIN_ARG}" STREQUAL "")
# if(NOT ENABLE_FPGA)
if(CMAKE_VERSION VERSION_LESS 3.2)
ExternalProject_Add(
@ -403,6 +406,7 @@ if(ENABLE_UNIT_TESTING)
signal_generator_adapters
pvt_gr_blocks
signal_processing_testing_lib
system_testing_lib
${VOLK_GNSSSDR_LIBRARIES}
${MATIO_LIBRARIES}
${GNSS_SDR_TEST_OPTIONAL_LIBS}

4
src/tests/common-files/tracking_tests_flags.h
View File

@ -41,7 +41,7 @@ DEFINE_bool(enable_external_signal_file, false, "Use an external signal file cap
DEFINE_double(external_signal_acquisition_threshold, 2.5, "Threshold for satellite acquisition when external file is used");
DEFINE_int32(external_signal_acquisition_dwells, 5, "Maximum dwells count for satellite acquisition when external file is used");
DEFINE_double(external_signal_acquisition_doppler_max_hz, 5000.0, "Doppler max for satellite acquisition when external file is used");
DEFINE_double(external_signal_acquisition_doppler_step_hz, 125, "Doppler step for satellite acquisition when external file is used");
DEFINE_double(external_signal_acquisition_doppler_step_hz, 125.0, "Doppler step for satellite acquisition when external file is used");
DEFINE_string(signal_file, std::string("signal_out.bin"), "Path of the external signal capture file");
DEFINE_double(CN0_dBHz_start, std::numeric_limits<double>::infinity(), "Enable noise generator and set the CN0 start sweep value [dB-Hz]");
@ -77,6 +77,8 @@ DEFINE_double(skip_trk_transitory_s, 1.0, "Skip the initial tracking output sign
//Tracking configuration
DEFINE_int32(extend_correlation_symbols, 1, "Set the tracking coherent correlation to N symbols (up to 20 for GPS L1 C/A)");
DEFINE_int32(smoother_length, 10, "Set the moving average size for the carrier phase and code phase in case of high dynamics");
DEFINE_bool(high_dyn, false, "Activates the code resampler and NCO generator for high dynamics");
//Test output configuration
DEFINE_bool(plot_gps_l1_tracking_test, false, "Plots results of GpsL1CADllPllTrackingTest with gnuplot");

353
src/tests/system-tests/libs/geofunctions.cc
View File

@ -28,10 +28,10 @@
*
* -------------------------------------------------------------------------
*/
#include "geofunctions.h"
const double STRP_G_SI = 9.80665;
const double STRP_PI = 3.1415926535898; //!< Pi as defined in IS-GPS-200E
const double STRP_PI = 3.1415926535898; // Pi as defined in IS-GPS-200E
arma::mat Skew_symmetric(const arma::vec &a)
{
@ -205,7 +205,7 @@ int togeod(double *dphi, double *dlambda, double *h, double a, double finv, doub
cosphi = cos(*dphi);
// compute radius of curvature in prime vertical direction
N_phi = a / sqrt(1 - esq * sinphi * sinphi);
N_phi = a / sqrt(1.0 - esq * sinphi * sinphi);
// compute residuals in P and Z
dP = P - (N_phi + (*h)) * cosphi;
@ -233,7 +233,7 @@ int togeod(double *dphi, double *dlambda, double *h, double a, double finv, doub
arma::mat Gravity_ECEF(const arma::vec &r_eb_e)
{
// Parameters
const double R_0 = 6378137; // WGS84 Equatorial radius in meters
const double R_0 = 6378137.0; // WGS84 Equatorial radius in meters
const double mu = 3.986004418E14; // WGS84 Earth gravitational constant (m^3 s^-2)
const double J_2 = 1.082627E-3; // WGS84 Earth's second gravitational constant
const double omega_ie = 7.292115E-5; // Earth rotation rate (rad/s)
@ -259,12 +259,14 @@ arma::mat Gravity_ECEF(const arma::vec &r_eb_e)
}
arma::vec LLH_to_deg(arma::vec &LLH)
arma::vec LLH_to_deg(const arma::vec &LLH)
{
const double rtd = 180.0 / STRP_PI;
LLH(0) = LLH(0) * rtd;
LLH(1) = LLH(1) * rtd;
return LLH;
arma::vec deg = arma::zeros(3, 1);
deg(0) = LLH(0) * rtd;
deg(1) = LLH(1) * rtd;
deg(2) = LLH(2);
return deg;
}
@ -296,15 +298,16 @@ double mstokph(double MetersPerSeconds)
}
arma::vec CTM_to_Euler(arma::mat &C)
arma::vec CTM_to_Euler(const arma::mat &C)
{
// Calculate Euler angles using (2.23)
arma::mat CTM = C;
arma::vec eul = arma::zeros(3, 1);
eul(0) = atan2(C(1, 2), C(2, 2)); // roll
if (C(0, 2) < -1.0) C(0, 2) = -1.0;
if (C(0, 2) > 1.0) C(0, 2) = 1.0;
eul(1) = -asin(C(0, 2)); // pitch
eul(2) = atan2(C(0, 1), C(0, 0)); // yaw
eul(0) = atan2(CTM(1, 2), CTM(2, 2)); // roll
if (CTM(0, 2) < -1.0) CTM(0, 2) = -1.0;
if (CTM(0, 2) > 1.0) CTM(0, 2) = 1.0;
eul(1) = -asin(CTM(0, 2)); // pitch
eul(2) = atan2(CTM(0, 1), CTM(0, 0)); // yaw
return eul;
}
@ -353,7 +356,7 @@ arma::vec cart2geo(const arma::vec &XYZ, int elipsoid_selection)
do
{
oldh = h;
N = c / sqrt(1 + ex2 * (cos(phi) * cos(phi)));
N = c / sqrt(1.0 + ex2 * (cos(phi) * cos(phi)));
phi = atan(XYZ[2] / ((sqrt(XYZ[0] * XYZ[0] + XYZ[1] * XYZ[1]) * (1.0 - (2.0 - f[elipsoid_selection]) * f[elipsoid_selection] * N / (N + h)))));
h = sqrt(XYZ[0] * XYZ[0] + XYZ[1] * XYZ[1]) / cos(phi) - N;
iterations = iterations + 1;
@ -363,7 +366,7 @@ arma::vec cart2geo(const arma::vec &XYZ, int elipsoid_selection)
break;
}
}
while (std::abs(h - oldh) > 1.0e-12);
while (std::fabs(h - oldh) > 1.0e-12);
arma::vec LLH = {{phi, lambda, h}}; // radians
return LLH;
@ -398,11 +401,11 @@ void ECEF_to_Geo(const arma::vec &r_eb_e, const arma::vec &v_eb_e, const arma::m
void Geo_to_ECEF(const arma::vec &LLH, const arma::vec &v_eb_n, const arma::mat &C_b_n, arma::vec &r_eb_e, arma::vec &v_eb_e, arma::mat &C_b_e)
{
// Parameters
double R_0 = 6378137; // WGS84 Equatorial radius in meters
double R_0 = 6378137.0; // WGS84 Equatorial radius in meters
double e = 0.0818191908425; // WGS84 eccentricity
// Calculate transverse radius of curvature using (2.105)
double R_E = R_0 / sqrt(1 - (e * sin(LLH(0))) * (e * sin(LLH(0))));
double R_E = R_0 / sqrt(1.0 - (e * sin(LLH(0))) * (e * sin(LLH(0))));
// Convert position using (2.112)
double cos_lat = cos(LLH(0));
@ -434,7 +437,7 @@ void Geo_to_ECEF(const arma::vec &LLH, const arma::vec &v_eb_n, const arma::mat
void pv_Geo_to_ECEF(double L_b, double lambda_b, double h_b, const arma::vec &v_eb_n, arma::vec &r_eb_e, arma::vec &v_eb_e)
{
// Parameters
const double R_0 = 6378137; // WGS84 Equatorial radius in meters
const double R_0 = 6378137.0; // WGS84 Equatorial radius in meters
const double e = 0.0818191908425; // WGS84 eccentricity
// Calculate transverse radius of curvature using (2.105)
@ -458,3 +461,315 @@ void pv_Geo_to_ECEF(double L_b, double lambda_b, double h_b, const arma::vec &v_
// Transform velocity using (2.73)
v_eb_e = C_e_n.t() * v_eb_n;
}
double great_circle_distance(double lat1, double lon1, double lat2, double lon2)
{
// The Haversine formula determines the great-circle distance between two points on a sphere given their longitudes and latitudes.
// generally used geo measurement function
double R = 6378.137; // Radius of earth in KM
double dLat = lat2 * STRP_PI / 180.0 - lat1 * STRP_PI / 180.0;
double dLon = lon2 * STRP_PI / 180.0 - lon1 * STRP_PI / 180.0;
double a = sin(dLat / 2.0) * sin(dLat / 2.0) +
cos(lat1 * STRP_PI / 180.0) * cos(lat2 * STRP_PI / 180.0) *
sin(dLon / 2) * sin(dLon / 2.0);
double c = 2.0 * atan2(sqrt(a), sqrt(1.0 - a));
double d = R * c;
return d * 1000.0; // meters
}
void cart2utm(const arma::vec &r_eb_e, int zone, arma::vec &r_enu)
{
// Transformation of (X,Y,Z) to (E,N,U) in UTM, zone 'zone'
//
// Inputs:
// r_eb_e - Cartesian coordinates. Coordinates are referenced
// with respect to the International Terrestrial Reference
// Frame 1996 (ITRF96)
// zone - UTM zone of the given position
//
// Outputs:
// r_enu - UTM coordinates (Easting, Northing, Uping)
//
// Originally written in Matlab by Kai Borre, Nov. 1994
// Implemented in C++ by J.Arribas
//
// This implementation is based upon
// O. Andersson & K. Poder (1981) Koordinattransformationer
// ved Geod\ae{}tisk Institut. Landinspekt\oe{}ren
// Vol. 30: 552--571 and Vol. 31: 76
//
// An excellent, general reference (KW) is
// R. Koenig & K.H. Weise (1951) Mathematische Grundlagen der
// h\"oheren Geod\"asie und Kartographie.
// Erster Band, Springer Verlag
//
// Explanation of variables used:
// f flattening of ellipsoid
// a semi major axis in m
// m0 1 - scale at central meridian; for UTM 0.0004
// Q_n normalized meridian quadrant
// E0 Easting of central meridian
// L0 Longitude of central meridian
// bg constants for ellipsoidal geogr. to spherical geogr.
// gb constants for spherical geogr. to ellipsoidal geogr.
// gtu constants for ellipsoidal N, E to spherical N, E
// utg constants for spherical N, E to ellipoidal N, E
// tolutm tolerance for utm, 1.2E-10*meridian quadrant
// tolgeo tolerance for geographical, 0.00040 second of arc
//
// B, L refer to latitude and longitude. Southern latitude is negative
// International ellipsoid of 1924, valid for ED50
double a = 6378388.0;
double f = 1.0 / 297.0;
double ex2 = (2.0 - f) * f / ((1.0 - f) * (1.0 - f));
double c = a * sqrt(1.0 + ex2);
arma::vec vec = r_eb_e;
vec(2) = vec(2) - 4.5;
double alpha = 0.756e-6;
arma::mat R = {{1.0, -alpha, 0.0}, {alpha, 1.0, 0.0}, {0.0, 0.0, 1.0}};
arma::vec trans = {89.5, 93.8, 127.6};
double scale = 0.9999988;
arma::vec v = scale * R * vec + trans; // coordinate vector in ED50
double L = atan2(v(1), v(0));
double N1 = 6395000.0; // preliminary value
double B = atan2(v(2) / ((1.0 - f) * (1.0 - f) * N1), arma::norm(v.subvec(0, 1)) / N1); // preliminary value
double U = 0.1;
double oldU = 0.0;
int iterations = 0;
while (fabs(U - oldU) > 1.0E-4)
{
oldU = U;
N1 = c / sqrt(1.0 + ex2 * (cos(B) * cos(B)));
B = atan2(v(2) / ((1.0 - f) * (1.0 - f) * N1 + U), arma::norm(v.subvec(0, 1)) / (N1 + U));
U = arma::norm(v.subvec(0, 1)) / cos(B) - N1;
iterations = iterations + 1;
if (iterations > 100)
{
std::cout << "Failed to approximate U with desired precision. U-oldU:" << U - oldU << std::endl;
break;
}
}
// Normalized meridian quadrant, KW p. 50 (96), p. 19 (38b), p. 5 (21)
double m0 = 0.0004;
double n = f / (2.0 - f);
double m = n * n * (1.0 / 4.0 + n * n / 64.0);
double w = (a * (-n - m0 + m * (1.0 - m0))) / (1.0 + n);
double Q_n = a + w;
// Easting and longitude of central meridian
double E0 = 500000.0;
double L0 = (zone - 30) * 6.0 - 3.0;
// Check tolerance for reverse transformation
// double tolutm = STRP_PI / 2.0 * 1.2e-10 * Q_n;
// double tolgeo = 0.000040;
// Coefficients of trigonometric series
//
// ellipsoidal to spherical geographical, KW p .186 --187, (51) - (52)
// bg[1] = n * (-2 + n * (2 / 3 + n * (4 / 3 + n * (-82 / 45))));
// bg[2] = n ^ 2 * (5 / 3 + n * (-16 / 15 + n * (-13 / 9)));
// bg[3] = n ^ 3 * (-26 / 15 + n * 34 / 21);
// bg[4] = n ^ 4 * 1237 / 630;
//
// spherical to ellipsoidal geographical, KW p.190 --191, (61) - (62) % gb[1] = n * (2 + n * (-2 / 3 + n * (-2 + n * 116 / 45)));
// gb[2] = n ^ 2 * (7 / 3 + n * (-8 / 5 + n * (-227 / 45)));
// gb[3] = n ^ 3 * (56 / 15 + n * (-136 / 35));
// gb[4] = n ^ 4 * 4279 / 630;
//
// spherical to ellipsoidal N, E, KW p.196, (69) % gtu[1] = n * (1 / 2 + n * (-2 / 3 + n * (5 / 16 + n * 41 / 180)));
// gtu[2] = n ^ 2 * (13 / 48 + n * (-3 / 5 + n * 557 / 1440));
// gtu[3] = n ^ 3 * (61 / 240 + n * (-103 / 140));
// gtu[4] = n ^ 4 * 49561 / 161280;
//
// ellipsoidal to spherical N, E, KW p.194, (65) % utg[1] = n * (-1 / 2 + n * (2 / 3 + n * (-37 / 96 + n * 1 / 360)));
// utg[2] = n ^ 2 * (-1 / 48 + n * (-1 / 15 + n * 437 / 1440));
// utg[3] = n ^ 3 * (-17 / 480 + n * 37 / 840);
// utg[4] = n ^ 4 * (-4397 / 161280);
//
// With f = 1 / 297 we get
arma::colvec bg = {-3.37077907e-3,
4.73444769e-6,
-8.29914570e-9,
1.58785330e-11};
arma::colvec gb = {3.37077588e-3,
6.62769080e-6,
1.78718601e-8,
5.49266312e-11};
arma::colvec gtu = {8.41275991e-4,
7.67306686e-7,
1.21291230e-9,
2.48508228e-12};
arma::colvec utg = {-8.41276339e-4,
-5.95619298e-8,
-1.69485209e-10,
-2.20473896e-13};
// Ellipsoidal latitude, longitude to spherical latitude, longitude
bool neg_geo = false;
if (B < 0.0) neg_geo = true;
double Bg_r = fabs(B);
double res_clensin = clsin(bg, 4, 2.0 * Bg_r);
Bg_r = Bg_r + res_clensin;
L0 = L0 * STRP_PI / 180.0;
double Lg_r = L - L0;
// Spherical latitude, longitude to complementary spherical latitude % i.e.spherical N, E
double cos_BN = cos(Bg_r);
double Np = atan2(sin(Bg_r), cos(Lg_r) * cos_BN);
double Ep = atanh(sin(Lg_r) * cos_BN);
// Spherical normalized N, E to ellipsoidal N, E
Np = 2.0 * Np;
Ep = 2.0 * Ep;
double dN;
double dE;
clksin(gtu, 4, Np, Ep, &dN, &dE);
Np = Np / 2.0;
Ep = Ep / 2.0;
Np = Np + dN;
Ep = Ep + dE;
double N = Q_n * Np;
double E = Q_n * Ep + E0;
if (neg_geo)
{
N = -N + 20000000.0;
}
r_enu(0) = E;
r_enu(1) = N;
r_enu(2) = U;
}
double clsin(const arma::colvec &ar, int degree, double argument)
{
// Clenshaw summation of sinus of argument.
//
// result = clsin(ar, degree, argument);
//
// Originally written in Matlab by Kai Borre
// Implemented in C++ by J.Arribas
double cos_arg = 2.0 * cos(argument);
double hr1 = 0.0;
double hr = 0.0;
double hr2;
for (int t = degree; t > 0; t--)
{
hr2 = hr1;
hr1 = hr;
hr = ar(t - 1) + cos_arg * hr1 - hr2;
}
return (hr * sin(argument));
}
void clksin(const arma::colvec &ar, int degree, double arg_real, double arg_imag, double *re, double *im)
{
// Clenshaw summation of sinus with complex argument
// [re, im] = clksin(ar, degree, arg_real, arg_imag);
//
// Originally written in Matlab by Kai Borre
// Implemented in C++ by J.Arribas
double sin_arg_r = sin(arg_real);
double cos_arg_r = cos(arg_real);
double sinh_arg_i = sinh(arg_imag);
double cosh_arg_i = cosh(arg_imag);
double r = 2.0 * cos_arg_r * cosh_arg_i;
double i = -2.0 * sin_arg_r * sinh_arg_i;
double hr1 = 0.0;
double hr = 0.0;
double hi1 = 0.0;
double hi = 0.0;
double hi2;
double hr2;
for (int t = degree; t > 0; t--)
{
hr2 = hr1;
hr1 = hr;
hi2 = hi1;
hi1 = hi;
double z = ar(t - 1) + r * hr1 - i * hi - hr2;
hi = i * hr1 + r * hi1 - hi2;
hr = z;
}
r = sin_arg_r * cosh_arg_i;
i = cos_arg_r * sinh_arg_i;
*re = r * hr - i * hi;
*im = r * hi + i * hr;
}
int findUtmZone(double latitude_deg, double longitude_deg)
{
// Function finds the UTM zone number for given longitude and latitude.
// The longitude value must be between -180 (180 degree West) and 180 (180
// degree East) degree. The latitude must be within -80 (80 degree South) and
// 84 (84 degree North).
//
// utmZone = findUtmZone(latitude, longitude);
//
// Latitude and longitude must be in decimal degrees (e.g. 15.5 degrees not
// 15 deg 30 min).
//
// Originally written in Matlab by Darius Plausinaitis
// Implemented in C++ by J.Arribas
// Check value bounds
if ((longitude_deg > 180.0) || (longitude_deg < -180.0))
std::cout << "Longitude value exceeds limits (-180:180).\n";
if ((latitude_deg > 84.0) || (latitude_deg < -80.0))
std::cout << "Latitude value exceeds limits (-80:84).\n";
//
// Find zone
//
// Start at 180 deg west = -180 deg
int utmZone = floor((180 + longitude_deg) / 6) + 1;
// Correct zone numbers for particular areas
if (latitude_deg > 72.0)
{
// Corrections for zones 31 33 35 37
if ((longitude_deg >= 0.0) && (longitude_deg < 9.0))
{
utmZone = 31;
}
else if ((longitude_deg >= 9.0) && (longitude_deg < 21.0))
{
utmZone = 33;
}
else if ((longitude_deg >= 21.0) && (longitude_deg < 33.0))
{
utmZone = 35;
}
else if ((longitude_deg >= 33.0) && (longitude_deg < 42.0))
{
utmZone = 37;
}
}
else if ((latitude_deg >= 56.0) && (latitude_deg < 64.0))
{
// Correction for zone 32
if ((longitude_deg >= 3.0) && (longitude_deg < 12.0))
utmZone = 32;
}
return utmZone;
}

34
src/tests/system-tests/libs/geofunctions.h
View File

@ -94,7 +94,7 @@ arma::mat Gravity_ECEF(const arma::vec &r_eb_e); //!< Calculates acceleration d
*/
arma::vec cart2geo(const arma::vec &XYZ, int elipsoid_selection);
arma::vec LLH_to_deg(arma::vec &LLH);
arma::vec LLH_to_deg(const arma::vec &LLH);
double degtorad(double angleInDegrees);
@ -104,7 +104,7 @@ double mstoknotsh(double MetersPerSeconds);
double mstokph(double Kph);
arma::vec CTM_to_Euler(arma::mat &C);
arma::vec CTM_to_Euler(const arma::mat &C);
arma::mat Euler_to_CTM(const arma::vec &eul);
@ -151,4 +151,34 @@ void Geo_to_ECEF(const arma::vec &LLH, const arma::vec &v_eb_n, const arma::mat
*/
void pv_Geo_to_ECEF(double L_b, double lambda_b, double h_b, const arma::vec &v_eb_n, arma::vec &r_eb_e, arma::vec &v_eb_e);
/*!
* \brief The Haversine formula determines the great-circle distance between two points on a sphere given their longitudes and latitudes.
*/
double great_circle_distance(double lat1, double lon1, double lat2, double lon2);
/*!
* \brief Transformation of ECEF (X,Y,Z) to (E,N,U) in UTM, zone 'zone'.
*/
void cart2utm(const arma::vec &r_eb_e, int zone, arma::vec &r_enu);
/*!
* \brief Function finds the UTM zone number for given longitude and latitude.
*/
int findUtmZone(double latitude_deg, double longitude_deg);
/*!
* \brief Clenshaw summation of sinus of argument.
*/
double clsin(const arma::colvec &ar, int degree, double argument);
/*!
* \brief Clenshaw summation of sinus with complex argument.
*/
void clksin(const arma::colvec &ar, int degree, double arg_real, double arg_imag, double *re, double *im);
#endif

369
src/tests/system-tests/position_test.cc
View File

@ -32,6 +32,7 @@
* -------------------------------------------------------------------------
*/
#include "geofunctions.h"
#include "position_test_flags.h"
#include "rtklib_solver_dump_reader.h"
#include "spirent_motion_csv_dump_reader.h"
@ -54,6 +55,7 @@
#include <fstream>
#include <numeric>
#include <thread>
#include <armadillo>
// For GPS NAVIGATION (L1)
concurrent_queue<Gps_Acq_Assist> global_gps_acq_assist_queue;
@ -82,118 +84,13 @@ private:
std::string filename_rinex_obs = FLAGS_filename_rinex_obs;
std::string filename_raw_data = FLAGS_filename_raw_data;
void print_results(const std::vector<double>& east,
const std::vector<double>& north,
const std::vector<double>& up);
double compute_stdev_precision(const std::vector<double>& vec);
double compute_stdev_accuracy(const std::vector<double>& vec, double ref);
void geodetic2Enu(const double latitude, const double longitude, const double altitude,
double* east, double* north, double* up);
void geodetic2Ecef(const double latitude, const double longitude, const double altitude,
double* x, double* y, double* z);
void print_results(arma::mat R_eb_enu);
std::shared_ptr<InMemoryConfiguration> config;
std::shared_ptr<FileConfiguration> config_f;
std::string generated_kml_file;
};
void PositionSystemTest::geodetic2Ecef(const double latitude, const double longitude, const double altitude,
double* x, double* y, double* z)
{
const double a = 6378137.0; // WGS84
const double b = 6356752.314245; // WGS84
double aux_x, aux_y, aux_z;
// Convert to ECEF (See https://en.wikipedia.org/wiki/Geographic_coordinate_conversion#From_geodetic_to_ECEF_coordinates )
const double cLat = cos(latitude);
const double cLon = cos(longitude);
const double sLon = sin(longitude);
const double sLat = sin(latitude);
double N = std::pow(a, 2.0) / sqrt(std::pow(a, 2.0) * std::pow(cLat, 2.0) + std::pow(b, 2.0) * std::pow(sLat, 2.0));
aux_x = (N + altitude) * cLat * cLon;
aux_y = (N + altitude) * cLat * sLon;
aux_z = ((std::pow(b, 2.0) / std::pow(a, 2.0)) * N + altitude) * sLat;
*x = aux_x;
*y = aux_y;
*z = aux_z;
}
void PositionSystemTest::geodetic2Enu(double latitude, double longitude, double altitude,
double* east, double* north, double* up)
{
double x, y, z;
const double d2r = PI / 180.0;
geodetic2Ecef(latitude * d2r, longitude * d2r, altitude, &x, &y, &z);
double aux_north, aux_east, aux_down;
std::istringstream iss2(FLAGS_static_position);
std::string str_aux;
std::getline(iss2, str_aux, ',');
double ref_long = std::stod(str_aux);
std::getline(iss2, str_aux, ',');
double ref_lat = std::stod(str_aux);
std::getline(iss2, str_aux, '\n');
double ref_h = std::stod(str_aux);
double ref_x, ref_y, ref_z;
geodetic2Ecef(ref_lat * d2r, ref_long * d2r, ref_h, &ref_x, &ref_y, &ref_z);
double aux_x = x; // - ref_x;
double aux_y = y; // - ref_y;
double aux_z = z; // - ref_z;
// ECEF to NED matrix
double phiP = atan2(ref_z, sqrt(std::pow(ref_x, 2.0) + std::pow(ref_y, 2.0)));
const double sLat = sin(phiP);
const double sLon = sin(ref_long * d2r);
const double cLat = cos(phiP);
const double cLon = cos(ref_long * d2r);
aux_north = -aux_x * sLat * cLon - aux_y * sLon + aux_z * cLat * cLon;
aux_east = -aux_x * sLat * sLon + aux_y * cLon + aux_z * cLat * sLon;
aux_down = aux_x * cLat + aux_z * sLat;
*east = aux_east;
*north = aux_north;
*up = -aux_down;
}
double PositionSystemTest::compute_stdev_precision(const std::vector<double>& vec)
{
double sum__ = std::accumulate(vec.begin(), vec.end(), 0.0);
double mean__ = sum__ / vec.size();
double accum__ = 0.0;
std::for_each(std::begin(vec), std::end(vec), [&](const double d) {
accum__ += (d - mean__) * (d - mean__);
});
double stdev__ = std::sqrt(accum__ / (vec.size() - 1));
return stdev__;
}
double PositionSystemTest::compute_stdev_accuracy(const std::vector<double>& vec, const double ref)
{
const double mean__ = ref;
double accum__ = 0.0;
std::for_each(std::begin(vec), std::end(vec), [&](const double d) {
accum__ += (d - mean__) * (d - mean__);
});
double stdev__ = std::sqrt(accum__ / (vec.size() - 1));
return stdev__;
}
int PositionSystemTest::configure_generator()
{
// Configure signal generator
@ -261,23 +158,23 @@ int PositionSystemTest::configure_receiver()
const int grid_density = 16;
const float zero = 0.0;
const int number_of_channels = 12;
const int number_of_channels = 11;
const int in_acquisition = 1;
const float threshold = 0.01;
const float doppler_max = 8000.0;
const float doppler_step = 500.0;
const int max_dwells = 1;
const float threshold = 2.5;
const float doppler_max = 5000.0;
const float doppler_step = 250.0;
const int max_dwells = 10;
const int tong_init_val = 2;
const int tong_max_val = 10;
const int tong_max_dwells = 30;
const int coherent_integration_time_ms = 1;
const float pll_bw_hz = 30.0;
const float dll_bw_hz = 4.0;
const float pll_bw_hz = 35.0;
const float dll_bw_hz = 1.5;
const float early_late_space_chips = 0.5;
const float pll_bw_narrow_hz = 20.0;
const float dll_bw_narrow_hz = 2.0;
const float pll_bw_narrow_hz = 1.0;
const float dll_bw_narrow_hz = 0.1;
const int extend_correlation_ms = 1;
const int display_rate_ms = 500;
@ -307,7 +204,7 @@ int PositionSystemTest::configure_receiver()
// Set the Signal Conditioner
config->set_property("SignalConditioner.implementation", "Signal_Conditioner");
config->set_property("DataTypeAdapter.implementation", "Ibyte_To_Complex");
config->set_property("InputFilter.implementation", "Fir_Filter");
config->set_property("InputFilter.implementation", "Freq_Xlating_Fir_Filter");
config->set_property("InputFilter.dump", "false");
config->set_property("InputFilter.input_item_type", "gr_complex");
config->set_property("InputFilter.output_item_type", "gr_complex");
@ -324,7 +221,7 @@ int PositionSystemTest::configure_receiver()
config->set_property("InputFilter.ampl2_end", std::to_string(ampl2_end));
config->set_property("InputFilter.band1_error", std::to_string(band1_error));
config->set_property("InputFilter.band2_error", std::to_string(band2_error));
config->set_property("InputFilter.filter_type", "bandpass");
config->set_property("InputFilter.filter_type", "lowpass");
config->set_property("InputFilter.grid_density", std::to_string(grid_density));
config->set_property("InputFilter.sampling_frequency", std::to_string(sampling_rate_internal));
config->set_property("InputFilter.IF", std::to_string(zero));
@ -358,7 +255,6 @@ int PositionSystemTest::configure_receiver()
// Set Tracking
config->set_property("Tracking_1C.implementation", "GPS_L1_CA_DLL_PLL_Tracking");
//config->set_property("Tracking_1C.implementation", "GPS_L1_CA_DLL_PLL_C_Aid_Tracking");
config->set_property("Tracking_1C.item_type", "gr_complex");
config->set_property("Tracking_1C.dump", "false");
config->set_property("Tracking_1C.dump_filename", "./tracking_ch_");
@ -369,6 +265,8 @@ int PositionSystemTest::configure_receiver()
config->set_property("Tracking_1C.pll_bw_narrow_hz", std::to_string(pll_bw_narrow_hz));
config->set_property("Tracking_1C.dll_bw_narrow_hz", std::to_string(dll_bw_narrow_hz));
config->set_property("Tracking_1C.extend_correlation_symbols", std::to_string(extend_correlation_ms));
//config->set_property("Tracking_1C.high_dyn", "true");
//config->set_property("Tracking_1C.smoother_length", "200");
// Set Telemetry
config->set_property("TelemetryDecoder_1C.implementation", "GPS_L1_CA_Telemetry_Decoder");
@ -381,7 +279,7 @@ int PositionSystemTest::configure_receiver()
// Set PVT
config->set_property("PVT.implementation", "RTKLIB_PVT");
config->set_property("PVT.positioning_mode", "Single");
config->set_property("PVT.positioning_mode", "PPP_Static");
config->set_property("PVT.output_rate_ms", std::to_string(output_rate_ms));
config->set_property("PVT.display_rate_ms", std::to_string(display_rate_ms));
config->set_property("PVT.dump_filename", "./PVT");
@ -460,11 +358,8 @@ int PositionSystemTest::run_receiver()
void PositionSystemTest::check_results()
{
std::vector<double> pos_e;
std::vector<double> pos_n;
std::vector<double> pos_u;
arma::mat R_eb_e; //ECEF position (x,y,z) estimation in the Earth frame (Nx3)
arma::mat R_eb_enu; //ENU position (N,E,U) estimation in UTM (Nx3)
arma::mat V_eb_e; //ECEF velocity (x,y,z) estimation in the Earth frame (Nx3)
arma::mat LLH; //Geodetic coordinates (latitude, longitude, height) estimation in WGS84 datum
arma::vec receiver_time_s;
@ -482,10 +377,15 @@ void PositionSystemTest::check_results()
double ref_long = std::stod(str_aux);
std::getline(iss2, str_aux, '\n');
double ref_h = std::stod(str_aux);
double ref_e, ref_n, ref_u;
geodetic2Enu(ref_lat, ref_long, ref_h,
&ref_e, &ref_n, &ref_u);
int utm_zone = findUtmZone(ref_lat, ref_long);
arma::vec v_eb_n = {0.0, 0.0, 0.0};
arma::vec true_r_eb_e = {0.0, 0.0, 0.0};
arma::vec true_v_eb_e = {0.0, 0.0, 0.0};
pv_Geo_to_ECEF(degtorad(ref_lat), degtorad(ref_long), ref_h, v_eb_n, true_r_eb_e, true_v_eb_e);
ref_R_eb_e.insert_cols(0, true_r_eb_e);
arma::vec ref_r_enu = {0, 0, 0};
cart2utm(true_r_eb_e, utm_zone, ref_r_enu);
if (!FLAGS_use_pvt_solver_dump)
{
//fall back to read receiver KML output (position only)
@ -503,8 +403,8 @@ void PositionSystemTest::check_results()
if (found != std::string::npos) is_header = false;
}
bool is_data = true;
//read data
int64_t current_epoch = 0;
while (is_data)
{
if (!std::getline(myfile, line))
@ -532,18 +432,20 @@ void PositionSystemTest::check_results()
if (i == 2) h = value;
}
double north, east, up;
geodetic2Enu(lat, longitude, h, &east, &north, &up);
arma::vec tmp_v_ecef;
arma::vec tmp_r_ecef;
pv_Geo_to_ECEF(degtorad(lat), degtorad(longitude), h, arma::vec{0, 0, 0}, tmp_r_ecef, tmp_v_ecef);
R_eb_e.insert_cols(current_epoch, tmp_r_ecef);
arma::vec tmp_r_enu = {0, 0, 0};
cart2utm(tmp_r_ecef, utm_zone, tmp_r_enu);
R_eb_enu.insert_cols(current_epoch, tmp_r_enu);
// std::cout << "lat = " << lat << ", longitude = " << longitude << " h = " << h << std::endl;
// std::cout << "E = " << east << ", N = " << north << " U = " << up << std::endl;
pos_e.push_back(east);
pos_n.push_back(north);
pos_u.push_back(up);
// getchar();
}
}
myfile.close();
ASSERT_FALSE(pos_e.size() == 0) << "KML file is empty";
ASSERT_FALSE(R_eb_e.n_cols == 0) << "KML file is empty";
}
else
{
@ -551,33 +453,27 @@ void PositionSystemTest::check_results()
rtklib_solver_dump_reader pvt_reader;
pvt_reader.open_obs_file(FLAGS_pvt_solver_dump_filename);
int64_t n_epochs = pvt_reader.num_epochs();
R_eb_e = arma::zeros(n_epochs, 3);
V_eb_e = arma::zeros(n_epochs, 3);
LLH = arma::zeros(n_epochs, 3);
R_eb_e = arma::zeros(3, n_epochs);
V_eb_e = arma::zeros(3, n_epochs);
LLH = arma::zeros(3, n_epochs);
receiver_time_s = arma::zeros(n_epochs, 1);
int64_t current_epoch = 0;
while (pvt_reader.read_binary_obs())
{
double north, east, up;
geodetic2Enu(pvt_reader.latitude, pvt_reader.longitude, pvt_reader.height, &east, &north, &up);
// std::cout << "lat = " << pvt_reader.latitude << ", longitude = " << pvt_reader.longitude << " h = " << pvt_reader.height << std::endl;
// std::cout << "E = " << east << ", N = " << north << " U = " << up << std::endl;
pos_e.push_back(east);
pos_n.push_back(north);
pos_u.push_back(up);
// getchar();
// receiver_time_s(current_epoch) = static_cast<double>(pvt_reader.TOW_at_current_symbol_ms) / 1000.0;
receiver_time_s(current_epoch) = pvt_reader.RX_time - pvt_reader.clk_offset_s;
R_eb_e(current_epoch, 0) = pvt_reader.rr[0];
R_eb_e(current_epoch, 1) = pvt_reader.rr[1];
R_eb_e(current_epoch, 2) = pvt_reader.rr[2];
V_eb_e(current_epoch, 0) = pvt_reader.rr[3];
V_eb_e(current_epoch, 1) = pvt_reader.rr[4];
V_eb_e(current_epoch, 2) = pvt_reader.rr[5];
LLH(current_epoch, 0) = pvt_reader.latitude;
LLH(current_epoch, 1) = pvt_reader.longitude;
LLH(current_epoch, 2) = pvt_reader.height;
R_eb_e(0, current_epoch) = pvt_reader.rr[0];
R_eb_e(1, current_epoch) = pvt_reader.rr[1];
R_eb_e(2, current_epoch) = pvt_reader.rr[2];
V_eb_e(0, current_epoch) = pvt_reader.rr[3];
V_eb_e(1, current_epoch) = pvt_reader.rr[4];
V_eb_e(2, current_epoch) = pvt_reader.rr[5];
LLH(0, current_epoch) = pvt_reader.latitude;
LLH(1, current_epoch) = pvt_reader.longitude;
LLH(2, current_epoch) = pvt_reader.height;
arma::vec tmp_r_enu = {0, 0, 0};
cart2utm(R_eb_e.col(current_epoch), utm_zone, tmp_r_enu);
R_eb_enu.insert_cols(current_epoch, tmp_r_enu);
//debug check
// std::cout << "t1: " << pvt_reader.RX_time << std::endl;
@ -593,20 +489,21 @@ void PositionSystemTest::check_results()
if (FLAGS_static_scenario)
{
double sigma_E_2_precision = std::pow(compute_stdev_precision(pos_e), 2.0);
double sigma_N_2_precision = std::pow(compute_stdev_precision(pos_n), 2.0);
double sigma_U_2_precision = std::pow(compute_stdev_precision(pos_u), 2.0);
double sigma_E_2_precision = arma::var(R_eb_enu.row(0));
double sigma_N_2_precision = arma::var(R_eb_enu.row(1));
double sigma_U_2_precision = arma::var(R_eb_enu.row(2));
double sigma_E_2_accuracy = std::pow(compute_stdev_accuracy(pos_e, ref_e), 2.0);
double sigma_N_2_accuracy = std::pow(compute_stdev_accuracy(pos_n, ref_n), 2.0);
double sigma_U_2_accuracy = std::pow(compute_stdev_accuracy(pos_u, ref_u), 2.0);
arma::rowvec tmp_vec;
tmp_vec = R_eb_enu.row(0) - ref_r_enu(0);
double sigma_E_2_accuracy = sqrt(arma::sum(arma::square(tmp_vec)) / tmp_vec.n_cols);
tmp_vec = R_eb_enu.row(1) - ref_r_enu(1);
double sigma_N_2_accuracy = sqrt(arma::sum(arma::square(tmp_vec)) / tmp_vec.n_cols);
tmp_vec = R_eb_enu.row(2) - ref_r_enu(2);
double sigma_U_2_accuracy = sqrt(arma::sum(arma::square(tmp_vec)) / tmp_vec.n_cols);
double sum__e = std::accumulate(pos_e.begin(), pos_e.end(), 0.0);
double mean__e = sum__e / pos_e.size();
double sum__n = std::accumulate(pos_n.begin(), pos_n.end(), 0.0);
double mean__n = sum__n / pos_n.size();
double sum__u = std::accumulate(pos_u.begin(), pos_u.end(), 0.0);
double mean__u = sum__u / pos_u.size();
double mean__e = arma::mean(R_eb_enu.row(0));
double mean__n = arma::mean(R_eb_enu.row(1));
double mean__u = arma::mean(R_eb_enu.row(2));
std::stringstream stm;
std::ofstream position_test_file;
@ -614,25 +511,23 @@ void PositionSystemTest::check_results()
{
stm << "Configuration file: " << FLAGS_config_file_ptest << std::endl;
}
if (FLAGS_static_scenario)
{
stm << "---- ACCURACY ----" << std::endl;
stm << "2DRMS = " << 2 * sqrt(sigma_E_2_accuracy + sigma_N_2_accuracy) << " [m]" << std::endl;
stm << "DRMS = " << sqrt(sigma_E_2_accuracy + sigma_N_2_accuracy) << " [m]" << std::endl;
stm << "CEP = " << 0.62 * compute_stdev_accuracy(pos_n, ref_n) + 0.56 * compute_stdev_accuracy(pos_e, ref_e) << " [m]" << std::endl;
stm << "CEP = " << 0.62 * sqrt(sigma_N_2_accuracy) + 0.56 * sqrt(sigma_E_2_accuracy) << " [m]" << std::endl;
stm << "99% SAS = " << 1.122 * (sigma_E_2_accuracy + sigma_N_2_accuracy + sigma_U_2_accuracy) << " [m]" << std::endl;
stm << "90% SAS = " << 0.833 * (sigma_E_2_accuracy + sigma_N_2_accuracy + sigma_U_2_accuracy) << " [m]" << std::endl;
stm << "MRSE = " << sqrt(sigma_E_2_accuracy + sigma_N_2_accuracy + sigma_U_2_accuracy) << " [m]" << std::endl;
stm << "SEP = " << 0.51 * (sigma_E_2_accuracy + sigma_N_2_accuracy + sigma_U_2_accuracy) << " [m]" << std::endl;
stm << "Bias 2D = " << sqrt(std::pow(abs(mean__e - ref_e), 2.0) + std::pow(abs(mean__n - ref_n), 2.0)) << " [m]" << std::endl;
stm << "Bias 3D = " << sqrt(std::pow(abs(mean__e - ref_e), 2.0) + std::pow(abs(mean__n - ref_n), 2.0) + std::pow(abs(mean__u - ref_u), 2.0)) << " [m]" << std::endl;
stm << "Bias 2D = " << sqrt(std::pow(fabs(mean__e - ref_r_enu(0)), 2.0) + std::pow(fabs(mean__n - ref_r_enu(1)), 2.0)) << " [m]" << std::endl;
stm << "Bias 3D = " << sqrt(std::pow(fabs(mean__e - ref_r_enu(0)), 2.0) + std::pow(fabs(mean__n - ref_r_enu(1)), 2.0) + std::pow(fabs(mean__u - ref_r_enu(2)), 2.0)) << " [m]" << std::endl;
stm << std::endl;
}
stm << "---- PRECISION ----" << std::endl;
stm << "2DRMS = " << 2 * sqrt(sigma_E_2_precision + sigma_N_2_precision) << " [m]" << std::endl;
stm << "DRMS = " << sqrt(sigma_E_2_precision + sigma_N_2_precision) << " [m]" << std::endl;
stm << "CEP = " << 0.62 * compute_stdev_precision(pos_n) + 0.56 * compute_stdev_precision(pos_e) << " [m]" << std::endl;
stm << "CEP = " << 0.62 * sqrt(sigma_N_2_precision) + 0.56 * sqrt(sigma_E_2_precision) << " [m]" << std::endl;
stm << "99% SAS = " << 1.122 * (sigma_E_2_precision + sigma_N_2_precision + sigma_U_2_precision) << " [m]" << std::endl;
stm << "90% SAS = " << 0.833 * (sigma_E_2_precision + sigma_N_2_precision + sigma_U_2_precision) << " [m]" << std::endl;
stm << "MRSE = " << sqrt(sigma_E_2_precision + sigma_N_2_precision + sigma_U_2_precision) << " [m]" << std::endl;
@ -649,11 +544,11 @@ void PositionSystemTest::check_results()
// Sanity Check
double precision_SEP = 0.51 * (sigma_E_2_precision + sigma_N_2_precision + sigma_U_2_precision);
ASSERT_LT(precision_SEP, 20.0);
ASSERT_LT(precision_SEP, 1.0);
if (FLAGS_plot_position_test == true)
{
print_results(pos_e, pos_n, pos_u);
print_results(R_eb_enu);
}
}
else
@ -662,56 +557,55 @@ void PositionSystemTest::check_results()
spirent_motion_csv_dump_reader ref_reader;
ref_reader.open_obs_file(FLAGS_ref_motion_filename);
int64_t n_epochs = ref_reader.num_epochs();
ref_R_eb_e = arma::zeros(n_epochs, 3);
ref_V_eb_e = arma::zeros(n_epochs, 3);
ref_LLH = arma::zeros(n_epochs, 3);
ref_R_eb_e = arma::zeros(3, n_epochs);
ref_V_eb_e = arma::zeros(3, n_epochs);
ref_LLH = arma::zeros(3, n_epochs);
ref_time_s = arma::zeros(n_epochs, 1);
int64_t current_epoch = 0;
while (ref_reader.read_csv_obs())
{
ref_time_s(current_epoch) = ref_reader.TOW_ms / 1000.0;
ref_R_eb_e(current_epoch, 0) = ref_reader.Pos_X;
ref_R_eb_e(current_epoch, 1) = ref_reader.Pos_Y;
ref_R_eb_e(current_epoch, 2) = ref_reader.Pos_Z;
ref_V_eb_e(current_epoch, 0) = ref_reader.Vel_X;
ref_V_eb_e(current_epoch, 1) = ref_reader.Vel_Y;
ref_V_eb_e(current_epoch, 2) = ref_reader.Vel_Z;
ref_LLH(current_epoch, 0) = ref_reader.Lat;
ref_LLH(current_epoch, 1) = ref_reader.Long;
ref_LLH(current_epoch, 2) = ref_reader.Height;
ref_R_eb_e(0, current_epoch) = ref_reader.Pos_X;
ref_R_eb_e(1, current_epoch) = ref_reader.Pos_Y;
ref_R_eb_e(2, current_epoch) = ref_reader.Pos_Z;
ref_V_eb_e(0, current_epoch) = ref_reader.Vel_X;
ref_V_eb_e(1, current_epoch) = ref_reader.Vel_Y;
ref_V_eb_e(2, current_epoch) = ref_reader.Vel_Z;
ref_LLH(0, current_epoch) = ref_reader.Lat;
ref_LLH(1, current_epoch) = ref_reader.Long;
ref_LLH(2, current_epoch) = ref_reader.Height;
current_epoch++;
}
//interpolation of reference data to receiver epochs timestamps
arma::mat ref_interp_R_eb_e = arma::zeros(R_eb_e.n_rows, 3);
arma::mat ref_interp_V_eb_e = arma::zeros(V_eb_e.n_rows, 3);
arma::mat ref_interp_LLH = arma::zeros(LLH.n_rows, 3);
arma::mat ref_interp_R_eb_e = arma::zeros(3, R_eb_e.n_cols);
arma::mat ref_interp_V_eb_e = arma::zeros(3, V_eb_e.n_cols);
arma::mat ref_interp_LLH = arma::zeros(3, LLH.n_cols);
arma::vec tmp_vector;
for (int n = 0; n < 3; n++)
{
arma::interp1(ref_time_s, ref_R_eb_e.col(n), receiver_time_s, tmp_vector);
ref_interp_R_eb_e.col(n) = tmp_vector;
arma::interp1(ref_time_s, ref_V_eb_e.col(n), receiver_time_s, tmp_vector);
ref_interp_V_eb_e.col(n) = tmp_vector;
arma::interp1(ref_time_s, ref_LLH.col(n), receiver_time_s, tmp_vector);
ref_interp_LLH.col(n) = tmp_vector;
arma::interp1(ref_time_s, ref_R_eb_e.row(n), receiver_time_s, tmp_vector);
ref_interp_R_eb_e.row(n) = tmp_vector.t();
arma::interp1(ref_time_s, ref_V_eb_e.row(n), receiver_time_s, tmp_vector);
ref_interp_V_eb_e.row(n) = tmp_vector.t();
arma::interp1(ref_time_s, ref_LLH.row(n), receiver_time_s, tmp_vector);
ref_interp_LLH.row(n) = tmp_vector.t();
}
//compute error vectors
arma::mat error_R_eb_e = arma::zeros(R_eb_e.n_rows, 3);
arma::mat error_V_eb_e = arma::zeros(V_eb_e.n_rows, 3);
arma::mat error_LLH = arma::zeros(LLH.n_rows, 3);
arma::mat error_R_eb_e = arma::zeros(3, R_eb_e.n_cols);
arma::mat error_V_eb_e = arma::zeros(3, V_eb_e.n_cols);
arma::mat error_LLH = arma::zeros(3, LLH.n_cols);
error_R_eb_e = R_eb_e - ref_interp_R_eb_e;
error_V_eb_e = V_eb_e - ref_interp_V_eb_e;
error_LLH = LLH - ref_interp_LLH;
arma::vec error_module_R_eb_e = arma::zeros(R_eb_e.n_rows, 1);
arma::vec error_module_V_eb_e = arma::zeros(V_eb_e.n_rows, 1);
for (uint64_t n = 0; n < R_eb_e.n_rows; n++)
arma::vec error_module_R_eb_e = arma::zeros(R_eb_e.n_cols, 1);
arma::vec error_module_V_eb_e = arma::zeros(V_eb_e.n_cols, 1);
for (uint64_t n = 0; n < R_eb_e.n_cols; n++)
{
error_module_R_eb_e(n) = arma::norm(error_R_eb_e.row(n));
error_module_V_eb_e(n) = arma::norm(error_V_eb_e.row(n));
error_module_R_eb_e(n) = arma::norm(error_R_eb_e.col(n));
error_module_V_eb_e(n) = arma::norm(error_V_eb_e.col(n));
}
//Error statistics
arma::vec tmp_vec;
//RMSE, Mean, Variance and peaks
@ -751,6 +645,11 @@ void PositionSystemTest::check_results()
std::cout.precision(ss);
// plots
if (FLAGS_plot_position_test == true)
{
const std::string gnuplot_executable(FLAGS_gnuplot_executable);
if (!gnuplot_executable.empty())
{
Gnuplot g1("points");
if (FLAGS_show_plots)
{
@ -763,9 +662,13 @@ void PositionSystemTest::check_results()
g1.set_title("3D ECEF error coordinates");
g1.set_grid();
//conversion between arma::vec and std:vector
std::vector<double> X(error_R_eb_e.colptr(0), error_R_eb_e.colptr(0) + error_R_eb_e.n_rows);
std::vector<double> Y(error_R_eb_e.colptr(1), error_R_eb_e.colptr(1) + error_R_eb_e.n_rows);
std::vector<double> Z(error_R_eb_e.colptr(2), error_R_eb_e.colptr(2) + error_R_eb_e.n_rows);
arma::rowvec arma_vec_error_x = error_R_eb_e.row(0);
arma::rowvec arma_vec_error_y = error_R_eb_e.row(1);
arma::rowvec arma_vec_error_z = error_R_eb_e.row(2);
std::vector<double> X(arma_vec_error_x.colptr(0), arma_vec_error_x.colptr(0) + arma_vec_error_x.n_rows);
std::vector<double> Y(arma_vec_error_y.colptr(0), arma_vec_error_y.colptr(0) + arma_vec_error_y.n_rows);
std::vector<double> Z(arma_vec_error_z.colptr(0), arma_vec_error_z.colptr(0) + arma_vec_error_z.n_rows);
g1.cmd("set key box opaque");
g1.plot_xyz(X, Y, Z, "ECEF 3D error");
@ -842,11 +745,11 @@ void PositionSystemTest::check_results()
}
}
}
}
}
void PositionSystemTest::print_results(const std::vector<double>& east,
const std::vector<double>& north,
const std::vector<double>& up)
void PositionSystemTest::print_results(arma::mat R_eb_enu)
{
const std::string gnuplot_executable(FLAGS_gnuplot_executable);
if (gnuplot_executable.empty())
@ -857,29 +760,40 @@ void PositionSystemTest::print_results(const std::vector<double>& east,
}
else
{
double sigma_E_2_precision = std::pow(compute_stdev_precision(east), 2.0);
double sigma_N_2_precision = std::pow(compute_stdev_precision(north), 2.0);
double sigma_U_2_precision = std::pow(compute_stdev_precision(up), 2.0);
double sigma_E_2_precision = arma::var(R_eb_enu.row(0));
double sigma_N_2_precision = arma::var(R_eb_enu.row(1));
double sigma_U_2_precision = arma::var(R_eb_enu.row(2));
double mean_east = std::accumulate(east.begin(), east.end(), 0.0) / east.size();
double mean_north = std::accumulate(north.begin(), north.end(), 0.0) / north.size();
double mean_east = arma::mean(R_eb_enu.row(0));
double mean_north = arma::mean(R_eb_enu.row(1));
double mean_up = arma::mean(R_eb_enu.row(2));
auto it_max_east = std::max_element(std::begin(east), std::end(east));
auto it_min_east = std::min_element(std::begin(east), std::end(east));
auto it_max_north = std::max_element(std::begin(north), std::end(north));
auto it_min_north = std::min_element(std::begin(north), std::end(north));
auto it_max_up = std::max_element(std::begin(up), std::end(up));
auto it_min_up = std::min_element(std::begin(up), std::end(up));
double it_max_east = arma::max(R_eb_enu.row(0) - mean_east);
double it_min_east = arma::min(R_eb_enu.row(0) - mean_east);
auto east_range = std::max(*it_max_east, std::abs(*it_min_east));
auto north_range = std::max(*it_max_north, std::abs(*it_min_north));
auto up_range = std::max(*it_max_up, std::abs(*it_min_up));
double it_max_north = arma::max(R_eb_enu.row(1) - mean_north);
double it_min_north = arma::min(R_eb_enu.row(1) - mean_north);
double it_max_up = arma::max(R_eb_enu.row(2) - mean_up);
double it_min_up = arma::min(R_eb_enu.row(2) - mean_up);
double east_range = std::max(it_max_east, std::abs(it_min_east));
double north_range = std::max(it_max_north, std::abs(it_min_north));
double up_range = std::max(it_max_up, std::abs(it_min_up));
double range = std::max(east_range, north_range) * 1.1;
double range_3d = std::max(std::max(east_range, north_range), up_range) * 1.1;
double two_drms = 2 * sqrt(sigma_E_2_precision + sigma_N_2_precision);
double ninty_sas = 0.833 * (sigma_E_2_precision + sigma_N_2_precision + sigma_U_2_precision);
arma::rowvec arma_east = R_eb_enu.row(0) - mean_east;
arma::rowvec arma_north = R_eb_enu.row(1) - mean_north;
arma::rowvec arma_up = R_eb_enu.row(2) - mean_up;
std::vector<double> east(arma_east.colptr(0), arma_east.row(0).colptr(0) + arma_east.row(0).n_cols);
std::vector<double> north(arma_north.colptr(0), arma_north.colptr(0) + arma_north.n_cols);
std::vector<double> up(arma_up.colptr(0), arma_up.colptr(0) + arma_up.n_cols);
try
{
boost::filesystem::path p(gnuplot_executable);
@ -903,6 +817,7 @@ void PositionSystemTest::print_results(const std::vector<double>& east,
g1.cmd("set xrange [-" + std::to_string(range) + ":" + std::to_string(range) + "]");
g1.cmd("set yrange [-" + std::to_string(range) + ":" + std::to_string(range) + "]");
g1.plot_xy(east, north, "2D Position Fixes");
g1.set_style("lines").plot_circle(mean_east, mean_north, two_drms, "2DRMS");
g1.set_style("lines").plot_circle(mean_east, mean_north, two_drms / 2.0, "DRMS");

4
src/tests/unit-tests/signal-processing-blocks/libs/tracking_dump_reader.cc
View File

@ -45,7 +45,9 @@ bool tracking_dump_reader::read_binary_obs()
d_dump_file.read(reinterpret_cast<char *>(&PRN_start_sample_count), sizeof(uint64_t));
d_dump_file.read(reinterpret_cast<char *>(&acc_carrier_phase_rad), sizeof(float));
d_dump_file.read(reinterpret_cast<char *>(&carrier_doppler_hz), sizeof(float));
d_dump_file.read(reinterpret_cast<char *>(&carrier_doppler_rate_hz_s), sizeof(float));
d_dump_file.read(reinterpret_cast<char *>(&code_freq_chips), sizeof(float));
d_dump_file.read(reinterpret_cast<char *>(&code_freq_rate_chips), sizeof(float));
d_dump_file.read(reinterpret_cast<char *>(&carr_error_hz), sizeof(float));
d_dump_file.read(reinterpret_cast<char *>(&carr_error_filt_hz), sizeof(float));
d_dump_file.read(reinterpret_cast<char *>(&code_error_chips), sizeof(float));
@ -83,7 +85,7 @@ int64_t tracking_dump_reader::num_epochs()
{
std::ifstream::pos_type size;
int number_of_double_vars = 1;
int number_of_float_vars = 17;
int number_of_float_vars = 19;
int epoch_size_bytes = sizeof(uint64_t) + sizeof(double) * number_of_double_vars +
sizeof(float) * number_of_float_vars + sizeof(unsigned int);
std::ifstream tmpfile(d_dump_filename.c_str(), std::ios::binary | std::ios::ate);

2
src/tests/unit-tests/signal-processing-blocks/libs/tracking_dump_reader.h
View File

@ -63,7 +63,9 @@ public:
// carrier and code frequency
float carrier_doppler_hz;
float carrier_doppler_rate_hz_s;
float code_freq_chips;
float code_freq_rate_chips;
// PLL commands
float carr_error_hz;

122
src/tests/unit-tests/signal-processing-blocks/observables/hybrid_observables_test.cc
View File

@ -239,6 +239,7 @@ public:
void check_results_duplicated_satellite(
arma::mat& measured_sat1,
arma::mat& measured_sat2,
int ch_id,
std::string data_title);
HybridObservablesTest()
@ -260,7 +261,9 @@ public:
double DLL_wide_bw_hz,
double PLL_narrow_bw_hz,
double DLL_narrow_bw_hz,
int extend_correlation_symbols);
int extend_correlation_symbols,
uint32_t smoother_length,
bool high_dyn);
gr::top_block_sptr top_block;
std::shared_ptr<GNSSBlockFactory> factory;
@ -540,10 +543,17 @@ void HybridObservablesTest::configure_receiver(
double DLL_wide_bw_hz,
double PLL_narrow_bw_hz,
double DLL_narrow_bw_hz,
int extend_correlation_symbols)
int extend_correlation_symbols,
uint32_t smoother_length,
bool high_dyn)
{
config = std::make_shared<InMemoryConfiguration>();
config->set_property("Tracking.dump", "true");
if (high_dyn)
config->set_property("Tracking.high_dyn", "true");
else
config->set_property("Tracking.high_dyn", "false");
config->set_property("Tracking.smoother_length", std::to_string(smoother_length));
config->set_property("Tracking.dump_filename", "./tracking_ch_");
config->set_property("Tracking.implementation", implementation);
config->set_property("Tracking.item_type", "gr_complex");
@ -650,6 +660,8 @@ void HybridObservablesTest::configure_receiver(
std::cout << "pll_bw_narrow_hz: " << config->property("Tracking.pll_bw_narrow_hz", 0.0) << " Hz\n";
std::cout << "dll_bw_narrow_hz: " << config->property("Tracking.dll_bw_narrow_hz", 0.0) << " Hz\n";
std::cout << "extend_correlation_symbols: " << config->property("Tracking.extend_correlation_symbols", 0) << " Symbols\n";
std::cout << "high_dyn: " << config->property("Tracking.high_dyn", false) << "\n";
std::cout << "smoother_length: " << config->property("Tracking.smoother_length", 0) << "\n";
std::cout << "*****************************************\n";
std::cout << "*****************************************\n";
}
@ -995,13 +1007,40 @@ void HybridObservablesTest::check_results_carrier_doppler(
void HybridObservablesTest::check_results_duplicated_satellite(
arma::mat& measured_sat1,
arma::mat& measured_sat2,
int ch_id,
std::string data_title)
{
//1. True value interpolation to match the measurement times
double t0 = measured_sat1(0, 0);
//define the common measured time interval
double t0_sat1 = measured_sat1(0, 0);
int size1 = measured_sat1.col(0).n_rows;
double t1 = measured_sat1(size1 - 1, 0);
double t1_sat1 = measured_sat1(size1 - 1, 0);
double t0_sat2 = measured_sat2(0, 0);
int size2 = measured_sat2.col(0).n_rows;
double t1_sat2 = measured_sat2(size2 - 1, 0);
double t0;
double t1;
if (t0_sat1 > t0_sat2)
{
t0 = t0_sat1;
}
else
{
t0 = t0_sat2;
}
if (t1_sat1 > t1_sat2)
{
t1 = t1_sat2;
}
else
{
t1 = t1_sat1;
}
arma::vec t = arma::linspace<arma::vec>(t0, t1, floor((t1 - t0) * 1e3));
//conversion between arma::vec and std:vector
arma::vec t_from_start = arma::linspace<arma::vec>(0, t1 - t0, floor((t1 - t0) * 1e3));
@ -1037,6 +1076,15 @@ void HybridObservablesTest::check_results_duplicated_satellite(
//compute error
err_ch0_hz = meas_sat1_doppler_interp - meas_sat2_doppler_interp;
//save matlab file for further analysis
std::vector<double> tmp_vector_common_time_s(t.colptr(0),
t.colptr(0) + t.n_rows);
std::vector<double> tmp_vector_err_ch0_hz(err_ch0_hz.colptr(0),
err_ch0_hz.colptr(0) + err_ch0_hz.n_rows);
save_mat_xy(tmp_vector_common_time_s, tmp_vector_err_ch0_hz, std::string("measured_doppler_error_ch_" + std::to_string(ch_id)));
//compute statistics
arma::vec err2_ch0 = arma::square(err_ch0_hz);
double rmse_ch0 = sqrt(arma::mean(err2_ch0));
@ -1078,19 +1126,26 @@ void HybridObservablesTest::check_results_duplicated_satellite(
}
//check results against the test tolerance
ASSERT_LT(error_mean_ch0, 5);
ASSERT_GT(error_mean_ch0, -5);
EXPECT_LT(error_mean_ch0, 5);
EXPECT_GT(error_mean_ch0, -5);
//assuming PLL BW=35
ASSERT_LT(error_var_ch0, 250);
ASSERT_LT(max_error_ch0, 100);
ASSERT_GT(min_error_ch0, -100);
ASSERT_LT(rmse_ch0, 30);
EXPECT_LT(error_var_ch0, 250);
EXPECT_LT(max_error_ch0, 100);
EXPECT_GT(min_error_ch0, -100);
EXPECT_LT(rmse_ch0, 30);
//Carrier Phase error
//2. RMSE
arma::vec err_carrier_phase;
err_carrier_phase = delta_measured_carrier_phase_cycles;
//save matlab file for further analysis
std::vector<double> tmp_vector_err_carrier_phase(err_carrier_phase.colptr(0),
err_carrier_phase.colptr(0) + err_carrier_phase.n_rows);
save_mat_xy(tmp_vector_common_time_s, tmp_vector_err_carrier_phase, std::string("measured_carrier_phase_error_ch_" + std::to_string(ch_id)));
arma::vec err2_carrier_phase = arma::square(err_carrier_phase);
double rmse_carrier_phase = sqrt(arma::mean(err2_carrier_phase));
@ -1132,18 +1187,24 @@ void HybridObservablesTest::check_results_duplicated_satellite(
}
//check results against the test tolerance
ASSERT_LT(rmse_carrier_phase, 0.25);
ASSERT_LT(error_mean_carrier_phase, 0.2);
ASSERT_GT(error_mean_carrier_phase, -0.2);
ASSERT_LT(error_var_carrier_phase, 0.5);
ASSERT_LT(max_error_carrier_phase, 0.5);
ASSERT_GT(min_error_carrier_phase, -0.5);
EXPECT_LT(rmse_carrier_phase, 0.25);
EXPECT_LT(error_mean_carrier_phase, 0.2);
EXPECT_GT(error_mean_carrier_phase, -0.2);
EXPECT_LT(error_var_carrier_phase, 0.5);
EXPECT_LT(max_error_carrier_phase, 0.5);
EXPECT_GT(min_error_carrier_phase, -0.5);
//Pseudorange error
//2. RMSE
arma::vec err_pseudorange;
err_pseudorange = delta_measured_dist_m;
//save matlab file for further analysis
std::vector<double> tmp_vector_err_pseudorange(err_pseudorange.colptr(0),
err_pseudorange.colptr(0) + err_pseudorange.n_rows);
save_mat_xy(tmp_vector_common_time_s, tmp_vector_err_pseudorange, std::string("measured_pr_error_ch_" + std::to_string(ch_id)));
arma::vec err2_pseudorange = arma::square(err_pseudorange);
double rmse_pseudorange = sqrt(arma::mean(err2_pseudorange));
@ -1185,12 +1246,12 @@ void HybridObservablesTest::check_results_duplicated_satellite(
}
//check results against the test tolerance
ASSERT_LT(rmse_pseudorange, 3.0);
ASSERT_LT(error_mean_pseudorange, 1.0);
ASSERT_GT(error_mean_pseudorange, -1.0);
ASSERT_LT(error_var_pseudorange, 10.0);
ASSERT_LT(max_error_pseudorange, 10.0);
ASSERT_GT(min_error_pseudorange, -10.0);
EXPECT_LT(rmse_pseudorange, 3.0);
EXPECT_LT(error_mean_pseudorange, 1.0);
EXPECT_GT(error_mean_pseudorange, -1.0);
EXPECT_LT(error_var_pseudorange, 10.0);
EXPECT_LT(max_error_pseudorange, 10.0);
EXPECT_GT(min_error_pseudorange, -10.0);
}
bool HybridObservablesTest::save_mat_xy(std::vector<double>& x, std::vector<double>& y, std::string filename)
@ -1499,7 +1560,9 @@ TEST_F(HybridObservablesTest, ValidationOfResults)
FLAGS_DLL_bw_hz_start,
FLAGS_PLL_narrow_bw_hz,
FLAGS_DLL_narrow_bw_hz,
FLAGS_extend_correlation_symbols);
FLAGS_extend_correlation_symbols,
FLAGS_smoother_length,
FLAGS_high_dyn);
for (unsigned int n = 0; n < gnss_synchro_vec.size(); n++)
@ -1814,6 +1877,7 @@ TEST_F(HybridObservablesTest, ValidationOfResults)
check_results_duplicated_satellite(
measured_obs_vec.at(sat1_ch_id),
measured_obs_vec.at(sat2_ch_id),
sat1_ch_id,
"Duplicated sat [CH " + std::to_string(sat1_ch_id) + "," + std::to_string(sat2_ch_id) + "] PRNs " + std::to_string(gnss_synchro_vec.at(sat1_ch_id).PRN) + "," + std::to_string(gnss_synchro_vec.at(sat2_ch_id).PRN) + " ");
}
else
@ -1883,6 +1947,18 @@ TEST_F(HybridObservablesTest, ValidationOfResults)
measured_obs_vec.at(n).col(2).colptr(0) + measured_obs_vec.at(n).col(2).n_rows);
save_mat_xy(tmp_vector_x4, tmp_vector_y4, std::string("measured_doppler_ch_" + std::to_string(n)));
std::vector<double> tmp_vector_x5(true_obs_vec.at(n).col(0).colptr(0),
true_obs_vec.at(n).col(0).colptr(0) + true_obs_vec.at(n).col(0).n_rows);
std::vector<double> tmp_vector_y5(true_obs_vec.at(n).col(3).colptr(0),
true_obs_vec.at(n).col(3).colptr(0) + true_obs_vec.at(n).col(3).n_rows);
save_mat_xy(tmp_vector_x5, tmp_vector_y5, std::string("true_cp_ch_" + std::to_string(n)));
std::vector<double> tmp_vector_x6(measured_obs_vec.at(n).col(0).colptr(0),
measured_obs_vec.at(n).col(0).colptr(0) + measured_obs_vec.at(n).col(0).n_rows);
std::vector<double> tmp_vector_y6(measured_obs_vec.at(n).col(3).colptr(0),
measured_obs_vec.at(n).col(3).colptr(0) + measured_obs_vec.at(n).col(3).n_rows);
save_mat_xy(tmp_vector_x6, tmp_vector_y6, std::string("measured_cp_ch_" + std::to_string(n)));
if (epoch_counters_vec.at(n) > 10) //discard non-valid channels
{

34
src/tests/unit-tests/signal-processing-blocks/pvt/rtklib_solver_test.cc
View File

@ -38,6 +38,8 @@
#include "rtklib_solver.h"
#include "in_memory_configuration.h"
#include "gnss_sdr_supl_client.h"
#include "geofunctions.h"
#include <armadillo>
rtk_t configure_rtklib_options()
@ -366,10 +368,6 @@ TEST(RTKLibSolverTest, test1)
//
// gnss_synchro_map[0] = tmp_obs;
// gnss_synchro_map[0].PRN = 1;
// gnss_synchro_map[0].RX_time = 518449.000000;
// gnss_synchro_map[0].Pseudorange_m = 22816591.664859;
// gnss_synchro_map[0].Carrier_Doppler_hz = -2579.334343;
// gnss_synchro_map[0].Carrier_phase_rads = 794858.014183;
//load from xml (boost serialize)
std::string file_name = path + "data/rtklib_test/obs_test1.xml";
@ -417,10 +415,6 @@ TEST(RTKLibSolverTest, test1)
// p_time += boost::posix_time::microseconds(round(rtklib_utc_time.sec * 1e6));
// std::cout << TEXT_MAGENTA << "Observable RX time (GPST) " << boost::posix_time::to_simple_string(p_time) << TEXT_RESET << std::endl;
std::cout << "Position at " << boost::posix_time::to_simple_string(d_ls_pvt->get_position_UTC_time())
<< " UTC using " << d_ls_pvt->get_num_valid_observations() << " observations is Lat = " << d_ls_pvt->get_latitude() << " [deg], Long = " << d_ls_pvt->get_longitude()
<< " [deg], Height = " << d_ls_pvt->get_height() << " [m]" << std::endl;
std::cout << "RTKLIB Position at RX TOW = " << gnss_synchro_map.begin()->second.RX_time
<< " in ECEF (X,Y,Z,t[meters]) = " << std::fixed << std::setprecision(16)
<< d_ls_pvt->pvt_sol.rr[0] << ","
@ -433,8 +427,32 @@ TEST(RTKLibSolverTest, test1)
//todo: check here the positioning error against the reference position generated with gnss-sim
//reference position on in WGS84: Lat (deg), Long (deg) , H (m): 30.286502,120.032669,100
arma::vec LLH = {30.286502, 120.032669, 100}; //ref position for this scenario
double error_LLH_m = great_circle_distance(LLH(0), LLH(1), d_ls_pvt->get_latitude(), d_ls_pvt->get_longitude());
std::cout << "Lat, Long, H error: " << d_ls_pvt->get_latitude() - LLH(0)
<< "," << d_ls_pvt->get_longitude() - LLH(1)
<< "," << d_ls_pvt->get_height() - LLH(2) << " [deg,deg,meters]" << std::endl;
std::cout << "Haversine Great Circle error LLH distance: " << error_LLH_m << " [meters]" << std::endl;
arma::vec v_eb_n = {0.0, 0.0, 0.0};
arma::vec true_r_eb_e;
arma::vec true_v_eb_e;
pv_Geo_to_ECEF(degtorad(LLH(0)), degtorad(LLH(1)), LLH(2), v_eb_n, true_r_eb_e, true_v_eb_e);
arma::vec measured_r_eb_e = {d_ls_pvt->pvt_sol.rr[0], d_ls_pvt->pvt_sol.rr[1], d_ls_pvt->pvt_sol.rr[2]};
arma::vec error_r_eb_e = measured_r_eb_e - true_r_eb_e;
std::cout << "ECEF position error vector: " << error_r_eb_e << " [meters]" << std::endl;
double error_3d_m = arma::norm(error_r_eb_e, 2);
std::cout << "3D positioning error: " << error_3d_m << " [meters]" << std::endl;
//check results against the test tolerance
ASSERT_LT(error_3d_m, 0.2);
pvt_valid = true;
}
}

4
src/utils/CMakeLists.txt
View File

@ -17,3 +17,7 @@
#
add_subdirectory(front-end-cal)
if(ENABLE_UNIT_TESTING_EXTRA OR ENABLE_SYSTEM_TESTING_EXTRA OR ENABLE_FPGA)
add_subdirectory(rinex2assist)
endif(ENABLE_UNIT_TESTING_EXTRA OR ENABLE_SYSTEM_TESTING_EXTRA OR ENABLE_FPGA)

36
src/utils/matlab/libs/dll_pll_veml_read_tracking_dump.m
View File

@ -33,7 +33,7 @@ function [GNSS_tracking] = dll_pll_veml_read_tracking_dump (filename, count)
m = nargchk (1,2,nargin);
num_float_vars = 17;
num_float_vars = 19;
num_unsigned_long_int_vars = 1;
num_double_vars = 1;
num_unsigned_int_vars = 1;
@ -114,17 +114,23 @@ else
fseek(f,bytes_shift,'bof'); % move to next float
v16 = fread (f, count, 'float', skip_bytes_each_read - float_size_bytes);
bytes_shift = bytes_shift + float_size_bytes;
fseek(f,bytes_shift,'bof'); % move to next interleaved float
fseek(f,bytes_shift,'bof'); % move to next float
v17 = fread (f, count, 'float', skip_bytes_each_read - float_size_bytes);
bytes_shift = bytes_shift + float_size_bytes;
fseek(f,bytes_shift,'bof'); % move to next float
v18 = fread (f, count, 'float', skip_bytes_each_read - float_size_bytes);
bytes_shift = bytes_shift + float_size_bytes;
fseek(f,bytes_shift,'bof'); % move to next interleaved float
v19 = fread (f, count, 'float', skip_bytes_each_read - float_size_bytes);
bytes_shift = bytes_shift + float_size_bytes;
fseek(f,bytes_shift,'bof'); % move to next float
v20 = fread (f, count, 'float', skip_bytes_each_read-float_size_bytes);
bytes_shift = bytes_shift + float_size_bytes;
fseek(f,bytes_shift,'bof'); % move to next double
v19 = fread (f, count, 'double', skip_bytes_each_read - double_size_bytes);
v21 = fread (f, count, 'double', skip_bytes_each_read - double_size_bytes);
bytes_shift = bytes_shift + double_size_bytes;
fseek(f,bytes_shift,'bof'); % move to next unsigned int
v20 = fread (f, count, 'uint', skip_bytes_each_read - unsigned_int_size_bytes);
v22 = fread (f, count, 'uint', skip_bytes_each_read - unsigned_int_size_bytes);
fclose (f);
GNSS_tracking.VE = v1;
@ -137,15 +143,17 @@ else
GNSS_tracking.PRN_start_sample = v8;
GNSS_tracking.acc_carrier_phase_rad = v9;
GNSS_tracking.carrier_doppler_hz = v10;
GNSS_tracking.code_freq_hz = v11;
GNSS_tracking.carr_error = v12;
GNSS_tracking.carr_nco = v13;
GNSS_tracking.code_error = v14;
GNSS_tracking.code_nco = v15;
GNSS_tracking.CN0_SNV_dB_Hz = v16;
GNSS_tracking.carrier_lock_test = v17;
GNSS_tracking.var1 = v18;
GNSS_tracking.var2 = v19;
GNSS_tracking.PRN = v20;
GNSS_tracking.carrier_doppler_rate_hz_s = v11;
GNSS_tracking.code_freq_hz = v12;
GNSS_tracking.code_freq_rate_hz_s = v13;
GNSS_tracking.carr_error = v14;
GNSS_tracking.carr_nco = v15;
GNSS_tracking.code_error = v16;
GNSS_tracking.code_nco = v17;
GNSS_tracking.CN0_SNV_dB_Hz = v18;
GNSS_tracking.carrier_lock_test = v19;
GNSS_tracking.var1 = v20;
GNSS_tracking.var2 = v21;
GNSS_tracking.PRN = v22;
end

56
src/utils/rinex2assist/CMakeLists.txt Normal file
View File

@ -0,0 +1,56 @@
# Copyright (C) 2012-2018 (see AUTHORS file for a list of contributors)
#
# 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/>.
#
find_package(GPSTK QUIET)
if(NOT GPSTK_FOUND OR ENABLE_OWN_GPSTK)
set(GPSTK_LIBRARY ${CMAKE_CURRENT_SOURCE_DIR}/../../../thirdparty/gpstk-${GNSSSDR_GPSTK_LOCAL_VERSION}/install/lib/${CMAKE_FIND_LIBRARY_PREFIXES}gpstk${CMAKE_SHARED_LIBRARY_SUFFIX} )
set(GPSTK_INCLUDE_DIR ${CMAKE_CURRENT_SOURCE_DIR}/../../../thirdparty/gpstk-${GNSSSDR_GPSTK_LOCAL_VERSION}/install/include )
endif(NOT GPSTK_FOUND OR ENABLE_OWN_GPSTK)
set(CMAKE_INCLUDE_PATH ${CMAKE_INCLUDE_PATH} ${GPSTK_INCLUDE_DIR}/gpstk)
include_directories(
${CMAKE_SOURCE_DIR}/src/core/system_parameters
${GFlags_INCLUDE_DIRS}
${Boost_INCLUDE_DIRS}
${GPSTK_INCLUDE_DIR}/gpstk
${GPSTK_INCLUDE_DIR}
)
add_executable(rinex2assist ${CMAKE_CURRENT_SOURCE_DIR}/main.cc)
target_link_libraries(rinex2assist
${Boost_LIBRARIES}
${GPSTK_LIBRARY}
${GFlags_LIBS}
gnss_sp_libs
gnss_rx)
if(NOT GPSTK_FOUND OR ENABLE_OWN_GPSTK)
add_dependencies(rinex2assist gpstk-${GNSSSDR_GPSTK_LOCAL_VERSION})
endif(NOT GPSTK_FOUND OR ENABLE_OWN_GPSTK)
add_custom_command(TARGET rinex2assist POST_BUILD
COMMAND ${CMAKE_COMMAND} -E copy $<TARGET_FILE:rinex2assist>
${CMAKE_SOURCE_DIR}/install/$<TARGET_FILE_NAME:rinex2assist>)
install(TARGETS rinex2assist
RUNTIME DESTINATION bin
COMPONENT "rinex2assist"
)

228
src/utils/rinex2assist/main.cc Normal file
View File

@ -0,0 +1,228 @@
/*!
* \file main.cc
* \brief converts navigation RINEX files into XML files for Assisted GNSS.
* \author Carles Fernandez-Prades, 2018. cfernandez(at)cttc.cat
*
*
* -------------------------------------------------------------------------
*
* 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 "gps_ephemeris.h"
#include "galileo_ephemeris.h"
#include <gflags/gflags.h>
#include <gpstk/Rinex3NavHeader.hpp>
#include <gpstk/Rinex3NavData.hpp>
#include <gpstk/Rinex3NavStream.hpp>
#include <boost/archive/xml_oarchive.hpp>
#include <boost/serialization/map.hpp>
#include <iostream>
int main(int argc, char** argv)
{
const std::string intro_help(
std::string("\n rinex2assist converts navigation RINEX files into XML files for Assisted GNSS\n") +
"Copyright (C) 2018 (see AUTHORS file for a list of contributors)\n" +
"This program comes with ABSOLUTELY NO WARRANTY;\n" +
"See COPYING file to see a copy of the General Public License.\n \n" +
"Usage: \n" +
" rinex2assist <RINEX Nav file input> [<XML file output>]");
google::SetUsageMessage(intro_help);
google::SetVersionString("1.0");
google::ParseCommandLineFlags(&argc, &argv, true);
if ((argc < 2) or (argc > 3))
{
std::cerr << "Usage:" << std::endl;
std::cerr << " " << argv[0]
<< " <RINEX Nav file input> [<XML file output>]"
<< std::endl;
google::ShutDownCommandLineFlags();
return 1;
}
std::string xml_filename;
if (argc == 3)
{
xml_filename = argv[2];
}
std::map<int, Gps_Ephemeris> eph_map;
std::map<int, Galileo_Ephemeris> eph_gal_map;
int i = 0;
int j = 0;
try
{
// Read nav file
gpstk::Rinex3NavStream rnffs(argv[1]); // Open navigation data file
gpstk::Rinex3NavData rne;
gpstk::Rinex3NavHeader hdr;
// Read header
rnffs >> hdr;
// Check that it really is a RINEX navigation file
if (hdr.fileType.substr(0, 1).compare("N") != 0)
{
std::cerr << "This is not a valid RINEX navigation file, or file not found." << std::endl;
std::cerr << "No XML file will be created." << std::endl;
return 1;
}
// Read navigation data
while (rnffs >> rne)
{
if (rne.satSys.compare("G") == 0 or rne.satSys.empty())
{
// Fill GPS ephemeris object
Gps_Ephemeris eph;
eph.i_satellite_PRN = rne.PRNID;
eph.d_TOW = rne.xmitTime;
eph.d_IODE_SF2 = rne.IODE;
eph.d_IODE_SF3 = rne.IODE;
eph.d_Crs = rne.Crs;
eph.d_Delta_n = rne.dn;
eph.d_M_0 = rne.M0;
eph.d_Cuc = rne.Cuc;
eph.d_e_eccentricity = rne.ecc;
eph.d_Cus = rne.Cus;
eph.d_sqrt_A = rne.Ahalf;
eph.d_Toe = rne.Toe;
eph.d_Toc = rne.Toc;
eph.d_Cic = rne.Cic;
eph.d_OMEGA0 = rne.OMEGA0;
eph.d_Cis = rne.Cis;
eph.d_i_0 = rne.i0;
eph.d_Crc = rne.Crc;
eph.d_OMEGA = rne.w;
eph.d_OMEGA_DOT = rne.OMEGAdot;
eph.d_IDOT = rne.idot;
eph.i_code_on_L2 = rne.codeflgs; //
eph.i_GPS_week = rne.weeknum;
eph.b_L2_P_data_flag = rne.L2Pdata;
eph.i_SV_accuracy = rne.accuracy;
eph.i_SV_health = rne.health;
eph.d_TGD = rne.Tgd;
eph.d_IODC = rne.IODC;
eph.i_AODO = 0; //
eph.b_fit_interval_flag = (rne.fitint > 4) ? 1 : 0;
eph.d_spare1 = 0.0;
eph.d_spare2 = 0.0;
eph.d_A_f0 = rne.af0;
eph.d_A_f1 = rne.af1;
eph.d_A_f2 = rne.af2;
eph.b_integrity_status_flag = 0; //
eph.b_alert_flag = 0; //
eph.b_antispoofing_flag = 0; //
eph_map[i] = eph;
i++;
}
if (rne.satSys.compare("E") == 0)
{
// Fill Galileo ephemeris object
Galileo_Ephemeris eph;
eph.i_satellite_PRN = rne.PRNID;
eph.M0_1 = rne.M0;
eph.e_1 = rne.ecc;
eph.A_1 = rne.Ahalf;
eph.OMEGA_0_2 = rne.OMEGA0;
eph.i_0_2 = rne.i0;
eph.omega_2 = rne.w;
eph.OMEGA_dot_3 = rne.OMEGAdot;
eph.iDot_2 = rne.idot;
eph.C_uc_3 = rne.Cuc;
eph.C_us_3 = rne.Cus;
eph.C_rc_3 = rne.Crc;
eph.C_rs_3 = rne.Crs;
eph.C_ic_4 = rne.Cic;
eph.C_is_4 = rne.Cis;
eph.t0e_1 = rne.Toe;
eph.t0c_4 = rne.Toc;
eph.af0_4 = rne.af0;
eph.af1_4 = rne.af1;
eph.af2_4 = rne.af2;
eph_gal_map[j] = eph;
j++;
}
}
}
catch (std::exception& e)
{
std::cerr << "Error reading the RINEX file: " << e.what() << std::endl;
std::cerr << "No XML file will be created." << std::endl;
google::ShutDownCommandLineFlags();
return 1;
}
if (i == 0 and j == 0)
{
std::cerr << "No navigation data found in the RINEX file. No XML file will be created." << std::endl;
google::ShutDownCommandLineFlags();
return 1;
}
// Write XML
if (i != 0)
{
std::ofstream ofs;
if (xml_filename.empty())
{
xml_filename = "eph_GPS_L1CA.xml";
}
try
{
ofs.open(xml_filename.c_str(), std::ofstream::trunc | std::ofstream::out);
boost::archive::xml_oarchive xml(ofs);
xml << boost::serialization::make_nvp("GNSS-SDR_ephemeris_map", eph_map);
}
catch (std::exception& e)
{
std::cerr << "Problem creating the XML file: " << e.what() << std::endl;
google::ShutDownCommandLineFlags();
return 1;
}
}
if (j != 0)
{
std::ofstream ofs2;
xml_filename = "eph_Galileo_E1.xml";
try
{
ofs2.open(xml_filename.c_str(), std::ofstream::trunc | std::ofstream::out);
boost::archive::xml_oarchive xml(ofs2);
xml << boost::serialization::make_nvp("GNSS-SDR_ephemeris_map", eph_gal_map);
}
catch (std::exception& e)
{
std::cerr << "Problem creating the XML file: " << e.what() << std::endl;
google::ShutDownCommandLineFlags();
return 1;
}
}
google::ShutDownCommandLineFlags();
return 0;
}