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mirror of https://github.com/gnss-sdr/gnss-sdr synced 2024-12-15 04:30:33 +00:00

Add adapter for Glonass L1 C/A tracking

This commit is contained in:
Gastd 2017-07-23 22:47:00 -03:00
parent 4557837814
commit b7c3221ca5
3 changed files with 179 additions and 0 deletions

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@ -33,6 +33,7 @@ set(TRACKING_ADAPTER_SOURCES
gps_l1_ca_tcp_connector_tracking.cc
galileo_e5a_dll_pll_tracking.cc
gps_l2_m_dll_pll_tracking.cc
glonass_l1_ca_dll_pll_tracking.cc
${OPT_TRACKING_ADAPTERS}
)

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@ -0,0 +1,111 @@
#include "glonass_l1_ca_dll_pll_tracking.h"
#include <glog/logging.h>
#include "Glonass_L1_CA.h"
#include "configuration_interface.h"
using google::LogMessage;
GlonassL1CaDllPllTracking::GlonassL1CaDllPllTracking(
ConfigurationInterface* configuration, std::string role,
unsigned int in_streams, unsigned int out_streams) :
role_(role), in_streams_(in_streams), out_streams_(out_streams)
{
DLOG(INFO) << "role " << role;
//################# CONFIGURATION PARAMETERS ########################
int fs_in;
int vector_length;
int f_if;
bool dump;
std::string dump_filename;
std::string item_type;
std::string default_item_type = "gr_complex";
float pll_bw_hz;
float dll_bw_hz;
float early_late_space_chips;
item_type = configuration->property(role + ".item_type", default_item_type);
fs_in = configuration->property("GNSS-SDR.internal_fs_hz", 2048000);
f_if = configuration->property(role + ".if", 0);
dump = configuration->property(role + ".dump", false);
pll_bw_hz = configuration->property(role + ".pll_bw_hz", 50.0);
dll_bw_hz = configuration->property(role + ".dll_bw_hz", 2.0);
early_late_space_chips = configuration->property(role + ".early_late_space_chips", 0.5);
std::string default_dump_filename = "./track_ch";
dump_filename = configuration->property(role + ".dump_filename", default_dump_filename); //unused!
vector_length = std::round(fs_in / (GLONASS_L1_CA_CODE_RATE_HZ / GLONASS_L1_CA_CODE_LENGTH_CHIPS));
//################# MAKE TRACKING GNURadio object ###################
if (item_type.compare("gr_complex") == 0)
{
item_size_ = sizeof(gr_complex);
tracking_ = glonass_l1_ca_dll_pll_make_tracking_cc(
f_if,
fs_in,
vector_length,
dump,
dump_filename,
pll_bw_hz,
dll_bw_hz,
early_late_space_chips);
}
else
{
item_size_ = sizeof(gr_complex);
LOG(WARNING) << item_type << " unknown tracking item type.";
}
channel_ = 0;
DLOG(INFO) << "tracking(" << tracking_->unique_id() << ")";
}
GlonassL1CaDllPllTracking::~GlonassL1CaDllPllTracking()
{}
void GlonassL1CaDllPllTracking::start_tracking()
{
tracking_->start_tracking();
}
/*
* Set tracking channel unique ID
*/
void GlonassL1CaDllPllTracking::set_channel(unsigned int channel)
{
channel_ = channel;
tracking_->set_channel(channel);
}
void GlonassL1CaDllPllTracking::set_gnss_synchro(Gnss_Synchro* p_gnss_synchro)
{
tracking_->set_gnss_synchro(p_gnss_synchro);
}
void GlonassL1CaDllPllTracking::connect(gr::top_block_sptr top_block)
{
if(top_block) { /* top_block is not null */};
//nothing to connect, now the tracking uses gr_sync_decimator
}
void GlonassL1CaDllPllTracking::disconnect(gr::top_block_sptr top_block)
{
if(top_block) { /* top_block is not null */};
//nothing to disconnect, now the tracking uses gr_sync_decimator
}
gr::basic_block_sptr GlonassL1CaDllPllTracking::get_left_block()
{
return tracking_;
}
gr::basic_block_sptr GlonassL1CaDllPllTracking::get_right_block()
{
return tracking_;
}

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@ -0,0 +1,67 @@
#ifndef GNSS_SDR_GLONASS_L1_CA_DLL_PLL_TRACKING_H_
#define GNSS_SDR_GLONASS_L1_CA_DLL_PLL_TRACKING_H_
#include <string>
#include "tracking_interface.h"
#include "glonass_l1_ca_dll_pll_tracking_cc.h"
class ConfigurationInterface;
/*!
* \brief This class implements a code DLL + carrier PLL tracking loop
*/
class GlonassL1CaDllPllTracking : public TrackingInterface
{
public:
GlonassL1CaDllPllTracking(ConfigurationInterface* configuration,
std::string role,
unsigned int in_streams,
unsigned int out_streams);
virtual ~GlonassL1CaDllPllTracking();
std::string role()
{
return role_;
}
//! Returns "GLONASS_L1_CA_DLL_PLL_Tracking"
std::string implementation()
{
return "GLONASS_L1_CA_DLL_PLL_Tracking";
}
size_t item_size()
{
return item_size_;
}
void connect(gr::top_block_sptr top_block);
void disconnect(gr::top_block_sptr top_block);
gr::basic_block_sptr get_left_block();
gr::basic_block_sptr get_right_block();
/*!
* \brief Set tracking channel unique ID
*/
void set_channel(unsigned int channel);
/*!
* \brief Set acquisition/tracking common Gnss_Synchro object pointer
* to efficiently exchange synchronization data between acquisition and tracking blocks
*/
void set_gnss_synchro(Gnss_Synchro* p_gnss_synchro);
void start_tracking();
private:
glonass_l1_ca_dll_pll_tracking_cc_sptr tracking_;
size_t item_size_;
unsigned int channel_;
std::string role_;
unsigned int in_streams_;
unsigned int out_streams_;
};
#endif // GNSS_SDR_GLONASS_L1_CA_DLL_PLL_TRACKING_H_