mirror of
https://github.com/gnss-sdr/gnss-sdr
synced 2024-12-13 03:30:33 +00:00
Added documentation to the code
git-svn-id: https://svn.code.sf.net/p/gnss-sdr/code/trunk@245 64b25241-fba3-4117-9849-534c7e92360d
This commit is contained in:
Luis Esteve
parent
2ef8d7de8a
commit
f0a0f94007
@ -50,10 +50,11 @@ GalileoE1PcpsAmbiguousAcquisition::GalileoE1PcpsAmbiguousAcquisition(
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ConfigurationInterface* configuration, std::string role,
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unsigned int in_streams, unsigned int out_streams,
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gr_msg_queue_sptr queue) :
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role_(role), in_streams_(in_streams), out_streams_(out_streams), queue_(queue)
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role_(role), in_streams_(in_streams), out_streams_(out_streams), queue_(
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queue)
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{
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configuration_ = configuration;
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configuration_ = configuration;
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std::string default_item_type = "gr_complex";
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std::string default_dump_filename = "../data/acquisition.dat";
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@ -70,159 +71,179 @@ GalileoE1PcpsAmbiguousAcquisition::GalileoE1PcpsAmbiguousAcquisition(
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dump_filename_ = configuration_->property(role + ".dump_filename",
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default_dump_filename);
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//--- Find number of samples per spreading code (4 ms) ----------------------------
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//--- Find number of samples per spreading code (4 ms) -----------------
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vector_length_ = round(fs_in_ / (Galileo_E1_CODE_CHIP_RATE_HZ / Galileo_E1_B_CODE_LENGTH_CHIPS));
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int samples_per_ms = vector_length_/4;
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vector_length_ = round(
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fs_in_
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/ (Galileo_E1_CODE_CHIP_RATE_HZ
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/ Galileo_E1_B_CODE_LENGTH_CHIPS));
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int samples_per_ms = vector_length_ / 4;
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code_= new gr_complex[vector_length_];
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code_ = new gr_complex[vector_length_];
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if (item_type_.compare("gr_complex") == 0)
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{
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item_size_ = sizeof(gr_complex);
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acquisition_cc_ = pcps_make_acquisition_cc(sampled_ms_,
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shift_resolution_, if_, fs_in_, samples_per_ms, queue_,
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dump_, dump_filename_);
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stream_to_vector_ = gr_make_stream_to_vector(item_size_,
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vector_length_);
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DLOG(INFO) << "stream_to_vector(" << stream_to_vector_->unique_id()
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<< ")";
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DLOG(INFO) << "acquisition(" << acquisition_cc_->unique_id()
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<< ")";
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}
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{
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item_size_ = sizeof(gr_complex);
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acquisition_cc_ = pcps_make_acquisition_cc(sampled_ms_,
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shift_resolution_, if_, fs_in_, samples_per_ms, queue_,
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dump_, dump_filename_);
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stream_to_vector_ = gr_make_stream_to_vector(item_size_,
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vector_length_);
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DLOG(INFO) << "stream_to_vector("
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<< stream_to_vector_->unique_id() << ")";
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DLOG(INFO) << "acquisition(" << acquisition_cc_->unique_id()
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<< ")";
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}
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else
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{
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LOG_AT_LEVEL(WARNING) << item_type_
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<< " unknown acquisition item type";
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}
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{
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LOG_AT_LEVEL(WARNING) << item_type_
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<< " unknown acquisition item type";
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}
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}
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GalileoE1PcpsAmbiguousAcquisition::~GalileoE1PcpsAmbiguousAcquisition()
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{
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delete[] code_;
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delete[] code_;
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}
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void GalileoE1PcpsAmbiguousAcquisition::set_channel(unsigned int channel)
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void
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GalileoE1PcpsAmbiguousAcquisition::set_channel(unsigned int channel)
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{
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channel_ = channel;
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if (item_type_.compare("gr_complex") == 0)
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{
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acquisition_cc_->set_channel(channel_);
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}
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{
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acquisition_cc_->set_channel(channel_);
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}
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}
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void GalileoE1PcpsAmbiguousAcquisition::set_threshold(float threshold)
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void
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GalileoE1PcpsAmbiguousAcquisition::set_threshold(float threshold)
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{
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threshold_ = threshold;
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if (item_type_.compare("gr_complex") == 0)
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{
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acquisition_cc_->set_threshold(threshold_);
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}
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{
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acquisition_cc_->set_threshold(threshold_);
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}
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}
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void GalileoE1PcpsAmbiguousAcquisition::set_doppler_max(unsigned int doppler_max)
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void
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GalileoE1PcpsAmbiguousAcquisition::set_doppler_max(unsigned int doppler_max)
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{
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doppler_max_ = doppler_max;
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if (item_type_.compare("gr_complex") == 0)
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{
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acquisition_cc_->set_doppler_max(doppler_max_);
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}
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{
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acquisition_cc_->set_doppler_max(doppler_max_);
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}
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}
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void GalileoE1PcpsAmbiguousAcquisition::set_doppler_step(unsigned int doppler_step)
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void
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GalileoE1PcpsAmbiguousAcquisition::set_doppler_step(unsigned int doppler_step)
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{
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doppler_step_ = doppler_step;
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if (item_type_.compare("gr_complex") == 0)
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{
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acquisition_cc_->set_doppler_step(doppler_step_);
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}
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{
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acquisition_cc_->set_doppler_step(doppler_step_);
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}
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}
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void GalileoE1PcpsAmbiguousAcquisition::set_channel_queue(
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void
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GalileoE1PcpsAmbiguousAcquisition::set_channel_queue(
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concurrent_queue<int> *channel_internal_queue)
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{
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channel_internal_queue_ = channel_internal_queue;
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if (item_type_.compare("gr_complex") == 0)
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{
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acquisition_cc_->set_channel_queue(channel_internal_queue_);
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}
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{
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acquisition_cc_->set_channel_queue(channel_internal_queue_);
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}
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}
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void GalileoE1PcpsAmbiguousAcquisition::set_gnss_synchro(Gnss_Synchro* gnss_synchro)
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void
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GalileoE1PcpsAmbiguousAcquisition::set_gnss_synchro(
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Gnss_Synchro* gnss_synchro)
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{
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gnss_synchro_ = gnss_synchro;
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gnss_synchro_ = gnss_synchro;
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if (item_type_.compare("gr_complex") == 0)
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{
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acquisition_cc_->set_gnss_synchro(gnss_synchro_);
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}
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{
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acquisition_cc_->set_gnss_synchro(gnss_synchro_);
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}
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}
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signed int GalileoE1PcpsAmbiguousAcquisition::mag()
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signed int
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GalileoE1PcpsAmbiguousAcquisition::mag()
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{
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if (item_type_.compare("gr_complex") == 0)
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{
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return acquisition_cc_->mag();
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}
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{
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return acquisition_cc_->mag();
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}
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else
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{
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return 0;
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}
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{
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return 0;
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}
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}
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void GalileoE1PcpsAmbiguousAcquisition::init(){
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void
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GalileoE1PcpsAmbiguousAcquisition::init()
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{
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if (item_type_.compare("gr_complex") == 0)
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{
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bool cboc = configuration_->property("Acquisition"
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+ boost::lexical_cast<std::string>(channel_) + ".cboc", false);;
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{
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bool cboc = configuration_->property(
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"Acquisition" + boost::lexical_cast<std::string>(channel_)
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+ ".cboc", false);
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;
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galileo_e1_code_gen_complex_sampled(code_, gnss_synchro_->Signal, cboc, gnss_synchro_->PRN, fs_in_, 0);
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acquisition_cc_->set_local_code(code_);
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acquisition_cc_->init();
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}
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galileo_e1_code_gen_complex_sampled(code_, gnss_synchro_->Signal,
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cboc, gnss_synchro_->PRN, fs_in_, 0);
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acquisition_cc_->set_local_code(code_);
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acquisition_cc_->init();
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}
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}
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void GalileoE1PcpsAmbiguousAcquisition::reset()
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void
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GalileoE1PcpsAmbiguousAcquisition::reset()
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{
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if (item_type_.compare("gr_complex") == 0)
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{
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acquisition_cc_->set_active(true);
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}
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{
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acquisition_cc_->set_active(true);
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}
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}
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void GalileoE1PcpsAmbiguousAcquisition::connect(gr_top_block_sptr top_block)
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void
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GalileoE1PcpsAmbiguousAcquisition::connect(gr_top_block_sptr top_block)
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{
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if (item_type_.compare("gr_complex") == 0)
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{
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top_block->connect(stream_to_vector_, 0, acquisition_cc_, 0);
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}
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{
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top_block->connect(stream_to_vector_, 0, acquisition_cc_, 0);
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}
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}
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void GalileoE1PcpsAmbiguousAcquisition::disconnect(gr_top_block_sptr top_block)
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void
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GalileoE1PcpsAmbiguousAcquisition::disconnect(gr_top_block_sptr top_block)
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{
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if (item_type_.compare("gr_complex") == 0)
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{
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top_block->disconnect(stream_to_vector_, 0, acquisition_cc_, 0);
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}
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{
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top_block->disconnect(stream_to_vector_, 0, acquisition_cc_, 0);
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}
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}
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gr_basic_block_sptr GalileoE1PcpsAmbiguousAcquisition::get_left_block()
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gr_basic_block_sptr
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GalileoE1PcpsAmbiguousAcquisition::get_left_block()
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{
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return stream_to_vector_;
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}
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gr_basic_block_sptr GalileoE1PcpsAmbiguousAcquisition::get_right_block()
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gr_basic_block_sptr
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GalileoE1PcpsAmbiguousAcquisition::get_right_block()
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{
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return acquisition_cc_;
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}
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@ -1,9 +1,9 @@
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/*!
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* \file galileo_e1_pcps_ambiguous_acquisition.h
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* \brief Adapts a PCPS acquisition block to an AcquisitionInterface for Galileo E1 Signals
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* \brief Adapts a PCPS acquisition block to an AcquisitionInterface for
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* Galileo E1 Signals
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* \author Luis Esteve, 2012. luis(at)epsilon-formacion.com
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*
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* Detailed description of the file here if needed.
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*
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* -------------------------------------------------------------------------
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*
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@ -40,6 +40,11 @@
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class ConfigurationInterface;
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/*!
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* \brief This class adapts a PCPS acquisition block to an AcquisitionInterface
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* for Galileo E1 Signals
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*/
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class GalileoE1PcpsAmbiguousAcquisition: public AcquisitionInterface
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{
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@ -69,15 +74,51 @@ public:
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gr_basic_block_sptr get_left_block();
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gr_basic_block_sptr get_right_block();
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/*!
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* \brief Set acquisition/tracking common Gnss_Synchro object pointer
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* to efficiently exchange synchronization data between acquisition and
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* tracking blocks
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*/
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void set_gnss_synchro(Gnss_Synchro* p_gnss_synchro);
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/*!
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* \brief Set acquisition channel unique ID
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*/
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void set_channel(unsigned int channel);
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/*!
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* \brief Set statistics threshold of PCPS algorithm
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*/
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void set_threshold(float threshold);
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/*!
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* \brief Set maximum Doppler off grid search
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*/
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void set_doppler_max(unsigned int doppler_max);
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/*!
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* \brief Set Doppler steps for the grid search
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*/
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void set_doppler_step(unsigned int doppler_step);
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/*!
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* \brief Set tracking channel internal queue
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*/
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void set_channel_queue(concurrent_queue<int> *channel_internal_queue);
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/*!
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* \brief Initializes acquisition algorithm.
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*/
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void init();
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/*!
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* \brief Returns the maximum peak of grid search
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*/
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signed int mag();
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/*!
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* \brief Restart acquisition algorithm
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*/
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void reset();
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private:
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@ -2,12 +2,14 @@
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* \file gps_l1_ca_pcps_acquisition.cc
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* \brief Adapts a PCPS acquisition block to an AcquisitionInterface for
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* GPS L1 C/A Signals
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* \author Javier Arribas, 2011. jarribas(at)cttc.es
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* Luis Esteve, 2011-2012. luis(at)epsilon-formacion.com
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* \authors <ul>
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* <li> Javier Arribas, 2011. jarribas(at)cttc.es
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* <li> Luis Esteve, 2012. luis(at)epsilon-formacion.com
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* </ul>
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*
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* -------------------------------------------------------------------------
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*
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* Copyright (C) 2010-2011 (see AUTHORS file for a list of contributors)
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* Copyright (C) 2010-2012 (see AUTHORS file for a list of contributors)
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*
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* GNSS-SDR is a software defined Global Navigation
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* Satellite Systems receiver
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@ -69,8 +71,9 @@ GpsL1CaPcpsAcquisition::GpsL1CaPcpsAcquisition(
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dump_filename_ = configuration->property(role + ".dump_filename",
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default_dump_filename);
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//--- Find number of samples per spreading code ----------------------------
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vector_length_ = round(fs_in_ / (GPS_L1_CA_CODE_RATE_HZ / GPS_L1_CA_CODE_LENGTH_CHIPS));
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//--- Find number of samples per spreading code -------------------------
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vector_length_ = round(fs_in_
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/ (GPS_L1_CA_CODE_RATE_HZ / GPS_L1_CA_CODE_LENGTH_CHIPS));
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code_= new gr_complex[vector_length_];
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@ -2,14 +2,14 @@
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* \file gps_l1_ca_pcps_acquisition.h
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* \brief Adapts a PCPS acquisition block to an AcquisitionInterface for
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* GPS L1 C/A signals
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* \author Javier Arribas, 2011. jarribas(at)cttc.es
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* Luis Esteve, 2011-2012. luis(at)epsilon-formacion.com
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*
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* Detailed description of the file here if needed.
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* \authors <ul>
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* <li> Javier Arribas, 2011. jarribas(at)cttc.es
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* <li> Luis Esteve, 2012. luis(at)epsilon-formacion.com
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* </ul> *
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*
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* -------------------------------------------------------------------------
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*
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* Copyright (C) 2010-2011 (see AUTHORS file for a list of contributors)
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* Copyright (C) 2010-2012 (see AUTHORS file for a list of contributors)
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*
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* GNSS-SDR is a software defined Global Navigation
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* Satellite Systems receiver
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@ -42,6 +42,11 @@
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class ConfigurationInterface;
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/*!
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* \brief This class adapts a PCPS acquisition block to an AcquisitionInterface
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* for GPS L1 C/A signals
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*/
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class GpsL1CaPcpsAcquisition: public AcquisitionInterface
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{
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@ -71,15 +76,51 @@ public:
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gr_basic_block_sptr get_left_block();
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gr_basic_block_sptr get_right_block();
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/*!
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* \brief Set acquisition/tracking common Gnss_Synchro object pointer
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* to efficiently exchange synchronization data between acquisition and
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* tracking blocks
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*/
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void set_gnss_synchro(Gnss_Synchro* p_gnss_synchro);
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/*!
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* \brief Set acquisition channel unique ID
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*/
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void set_channel(unsigned int channel);
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/*!
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* \brief Set statistics threshold of PCPS algorithm
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*/
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void set_threshold(float threshold);
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/*!
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* \brief Set maximum Doppler off grid search
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*/
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void set_doppler_max(unsigned int doppler_max);
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/*!
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* \brief Set Doppler steps for the grid search
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*/
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void set_doppler_step(unsigned int doppler_step);
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/*!
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* \brief Set tracking channel internal queue
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*/
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void set_channel_queue(concurrent_queue<int> *channel_internal_queue);
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/*!
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* \brief Initializes acquisition algorithm.
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*/
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void init();
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/*!
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* \brief Returns the maximum peak of grid search
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*/
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signed int mag();
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/*!
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* \brief Restart acquisition algorithm
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*/
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void reset();
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private:
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@ -1,8 +1,10 @@
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/*!
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* \file pcps_acquisition_cc.cc
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* \brief This class implements a Parallell Code Phase Search Acquisition
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* \author Javier Arribas, 2011. jarribas(at)cttc.es
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* Luis Esteve, 2012. luis(at)epsilon-formacion.com
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* \brief This class implements a Parallel Code Phase Search Acquisition
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* \authors <ul>
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* <li> Javier Arribas, 2011. jarribas(at)cttc.es
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* <li> Luis Esteve, 2012. luis(at)epsilon-formacion.com
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* </ul>
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*
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* Detailed description of the file here if needed.
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*
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@ -125,7 +127,6 @@ void pcps_acquisition_cc::init()
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for (unsigned int i = 0; i < d_fft_size; i++)
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{
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d_fft_codes[i] = std::complex<float>(conj(d_fft_if->get_outbuf()[i]));
|
||||
//d_fft_codes[i] = d_fft_codes[i] / (float)d_fft_size; //to correct the scale factor introduced by FFTW
|
||||
}
|
||||
|
||||
}
|
||||
@ -243,8 +244,6 @@ int pcps_acquisition_cc::general_work(int noutput_items,
|
||||
std::streamsize n = 2 * sizeof(float) * (d_fft_size); // complex file write
|
||||
filename.str("");
|
||||
filename << "../data/test_statistics_"<<d_gnss_synchro->System<<"_"<<d_gnss_synchro->Signal<<"_sat_" << d_gnss_synchro->PRN << "_doppler_"<< doppler << ".dat";
|
||||
//std::cout << filename.str().c_str();
|
||||
//std::cout << ".\n";
|
||||
d_dump_file.open(filename.str().c_str(), std::ios::out
|
||||
| std::ios::binary);
|
||||
d_dump_file.write((char*)d_ifft->get_outbuf(), n); //write directly |abs(x)|^2 in this Doppler bin?
|
||||
@ -257,8 +256,6 @@ int pcps_acquisition_cc::general_work(int noutput_items,
|
||||
d_mag = magt;
|
||||
d_gnss_synchro->Acq_delay_samples= (double)indext;
|
||||
d_gnss_synchro->Acq_doppler_hz= (double)doppler;
|
||||
//d_code_phase = indext;
|
||||
//d_doppler_freq = doppler;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
@ -1,21 +1,29 @@
|
||||
/*!
|
||||
* \file pcps_acquisition_cc.h
|
||||
* \brief This class implements a Parallell Code Phase Search Acquisition
|
||||
* \brief This class implements a Parallel Code Phase Search Acquisition
|
||||
*
|
||||
* Acquisition strategy (Kay Borre book + CFAR threshold):
|
||||
* 1. Compute the input signal power estimation
|
||||
* 2. Doppler serial search loop
|
||||
* 3. Perform the FFT-based circular convolution (parallel time search)
|
||||
* 4. Record the maximum peak and the associated synchronization parameters
|
||||
* 5. Compute the test statistics and compare to the threshold
|
||||
* 6. Declare positive or negative acquisition using a message queue
|
||||
* Acquisition strategy (Kay Borre book + CFAR threshold).
|
||||
* <ol>
|
||||
* <li> Compute the input signal power estimation
|
||||
* <li> Doppler serial search loop
|
||||
* <li> Perform the FFT-based circular convolution (parallel time search)
|
||||
* <li> Record the maximum peak and the associated synchronization parameters
|
||||
* <li> Compute the test statistics and compare to the threshold
|
||||
* <li> Declare positive or negative acquisition using a message queue
|
||||
* </ol>
|
||||
*
|
||||
* \author Javier Arribas, 2011. jarribas(at)cttc.es
|
||||
* Luis Esteve, 2012. luis(at)epsilon-formacion.com
|
||||
* Kay Borre book: K.Borre, D.M.Akos, N.Bertelsen, P.Rinder, and S.H.Jensen,
|
||||
* "A Software-Defined GPS and Galileo Receiver. A Single-Frequency
|
||||
* Approach", Birkha user, 2007. pp 81-84
|
||||
*
|
||||
* \authors <ul>
|
||||
* <li> Javier Arribas, 2011. jarribas(at)cttc.es
|
||||
* <li> Luis Esteve, 2012. luis(at)epsilon-formacion.com
|
||||
* </ul>
|
||||
*
|
||||
* -------------------------------------------------------------------------
|
||||
*
|
||||
* Copyright (C) 2010-2011 (see AUTHORS file for a list of contributors)
|
||||
* Copyright (C) 2010-2012 (see AUTHORS file for a list of contributors)
|
||||
*
|
||||
* GNSS-SDR is a software defined Global Navigation
|
||||
* Satellite Systems receiver
|
||||
@ -60,6 +68,10 @@ pcps_make_acquisition_cc(unsigned int sampled_ms,
|
||||
unsigned int doppler_max, long freq, long fs_in, int samples_per_ms,
|
||||
gr_msg_queue_sptr queue, bool dump, std::string dump_filename);
|
||||
|
||||
/*!
|
||||
* \brief This class implements a Parallel Code Phase Search Acquisition
|
||||
*/
|
||||
|
||||
class pcps_acquisition_cc: public gr_block {
|
||||
|
||||
private:
|
||||
@ -117,45 +129,79 @@ public:
|
||||
|
||||
~pcps_acquisition_cc();
|
||||
|
||||
/*!
|
||||
* \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)
|
||||
{
|
||||
d_gnss_synchro = p_gnss_synchro;
|
||||
}
|
||||
|
||||
/*!
|
||||
* \brief Returns the maximum peak of grid search
|
||||
*/
|
||||
unsigned int mag()
|
||||
{
|
||||
return d_mag;
|
||||
}
|
||||
|
||||
/*!
|
||||
* \brief Initializes acquisition algorithm.
|
||||
*/
|
||||
void init();
|
||||
|
||||
/*!
|
||||
* \brief Sets local code for PCPS acquisition algorithm.
|
||||
*/
|
||||
void set_local_code(std::complex<float> * code);
|
||||
|
||||
/*!
|
||||
* \brief Starts acquisition algorithm, turning from standby mode to
|
||||
* active mode
|
||||
*/
|
||||
void set_active(bool active)
|
||||
{
|
||||
d_active = active;
|
||||
}
|
||||
|
||||
/*!
|
||||
* \brief Set acquisition channel unique ID
|
||||
*/
|
||||
void set_channel(unsigned int channel)
|
||||
{
|
||||
d_channel = channel;
|
||||
}
|
||||
|
||||
/*!
|
||||
* \brief Set statistics threshold of PCPS algorithm
|
||||
*/
|
||||
void set_threshold(float threshold)
|
||||
{
|
||||
d_threshold = threshold;
|
||||
}
|
||||
|
||||
/*!
|
||||
* \brief Set maximum Doppler off grid search
|
||||
*/
|
||||
void set_doppler_max(unsigned int doppler_max)
|
||||
{
|
||||
d_doppler_max = doppler_max;
|
||||
}
|
||||
|
||||
/*!
|
||||
* \brief Set Doppler steps for the grid search
|
||||
*/
|
||||
void set_doppler_step(unsigned int doppler_step)
|
||||
{
|
||||
d_doppler_step = doppler_step;
|
||||
}
|
||||
|
||||
|
||||
/*!
|
||||
* \brief Set tracking channel internal queue
|
||||
*/
|
||||
void set_channel_queue(concurrent_queue<int> *channel_internal_queue)
|
||||
{
|
||||
d_channel_internal_queue = channel_internal_queue;
|
||||
|
||||
@ -3,7 +3,6 @@
|
||||
* \brief This library implements various functions for Galileo E1 signals
|
||||
* \author Luis Esteve, 2012. luis(at)epsilon-formacion.com
|
||||
*
|
||||
* Detailed description of the file here if needed.
|
||||
*
|
||||
* -------------------------------------------------------------------------
|
||||
*
|
||||
|
||||
@ -1,7 +1,7 @@
|
||||
/*!
|
||||
* \file galileo_e1_dll_pll_veml_tracking.cc
|
||||
* \brief Interface of an adapter of a DLL+PLL VEML (Very Early Minus Late)
|
||||
* tracking loop block for Galileo E1 to a TrackingInterface
|
||||
* \brief Adapts a DLL+PLL VEML (Very Early Minus Late) tracking loop block
|
||||
* to a TrackingInterface for Galileo E1 signals
|
||||
* \author Luis Esteve, 2012. luis(at)epsilon-formacion.com
|
||||
*
|
||||
* Code DLL + carrier PLL according to the algorithms described in:
|
||||
|
||||
@ -1,7 +1,7 @@
|
||||
/*!
|
||||
* \file galileo_e1_dll_pll_veml_tracking.h
|
||||
* \brief Interface of an adapter of a DLL+PLL VEML (Very Early Minus Late)
|
||||
* tracking loop block for Galileo E1 to a TrackingInterface
|
||||
* \brief Adapts a DLL+PLL VEML (Very Early Minus Late) tracking loop block
|
||||
* to a TrackingInterface for Galileo E1 signals
|
||||
* \author Luis Esteve, 2012. luis(at)epsilon-formacion.com
|
||||
*
|
||||
* Code DLL + carrier PLL according to the algorithms described in:
|
||||
@ -44,7 +44,8 @@
|
||||
class ConfigurationInterface;
|
||||
|
||||
/*!
|
||||
* \brief This class implements a code DLL + carrier PLL tracking loop
|
||||
* \brief This class Adapts a DLL+PLL VEML (Very Early Minus Late) tracking
|
||||
* loop block to a TrackingInterface for Galileo E1 signals
|
||||
*/
|
||||
class GalileoE1DllPllVemlTracking : public TrackingInterface
|
||||
{
|
||||
@ -85,7 +86,8 @@ public:
|
||||
|
||||
/*!
|
||||
* \brief Set acquisition/tracking common Gnss_Synchro object pointer
|
||||
* to efficiently exchange synchronization data between acquisition and tracking blocks
|
||||
* to efficiently exchange synchronization data between acquisition and
|
||||
* tracking blocks
|
||||
*/
|
||||
void set_gnss_synchro(Gnss_Synchro* p_gnss_synchro);
|
||||
|
||||
|
||||
@ -1,7 +1,7 @@
|
||||
/*!
|
||||
* \file galileo_e1_dll_pll_veml_tracking_cc.cc
|
||||
* \brief Implementation of a code DLL + carrier PLL bump-jump tracking
|
||||
* block
|
||||
* \brief Implementation of a code DLL + carrier PLL VEML (Very Early
|
||||
* Minus Late) tracking block for Galileo E1 signals
|
||||
* \author Luis Esteve, 2012. luis(at)epsilon-formacion.com
|
||||
*
|
||||
* Code DLL + carrier PLL according to the algorithms described in:
|
||||
|
||||
@ -1,7 +1,7 @@
|
||||
/*!
|
||||
* \file galileo_e1_dll_pll_veml_trakcing_cc.h
|
||||
* \brief Implementation of a code DLL + carrier PLL bump-jump tracking
|
||||
* block
|
||||
* \file galileo_e1_dll_pll_veml_tracking_cc.h
|
||||
* \brief Implementation of a code DLL + carrier PLL VEML (Very Early
|
||||
* Minus Late) tracking block for Galileo E1 signals
|
||||
* \author Luis Esteve, 2012. luis(at)epsilon-formacion.com
|
||||
*
|
||||
* Code DLL + carrier PLL according to the algorithms described in:
|
||||
@ -68,8 +68,10 @@ galileo_e1_dll_pll_veml_make_tracking_cc(long if_freq,
|
||||
float very_early_late_space_chips);
|
||||
|
||||
/*!
|
||||
* \brief This class implements a DLL + PLL bump-jump tracking loop block
|
||||
* \brief This class implements a code DLL + carrier PLL VEML (Very Early
|
||||
* Minus Late) tracking block for Galileo E1 signals
|
||||
*/
|
||||
|
||||
class galileo_e1_dll_pll_veml_tracking_cc: public gr_block
|
||||
{
|
||||
public:
|
||||
|
||||
@ -1,20 +1,26 @@
|
||||
/*!
|
||||
* \file CN_estimators.cc
|
||||
* \brief Implementation of a library with a set of Carrier to Noise
|
||||
* estimators and lock detectors. SNV_CN0 is a Carrier-to-Noise (CN0) estimator
|
||||
* estimators and lock detectors.
|
||||
*
|
||||
* SNV_CN0 is a Carrier-to-Noise (CN0) estimator
|
||||
* based on the Signal-to-Noise Variance (SNV) estimator [1].
|
||||
* Carrier lock detector using normalised estimate of the cosine
|
||||
* of twice the carrier phase error [2].
|
||||
*
|
||||
* [1] Marco Pini, Emanuela Falletti and Maurizio Fantino, "Performance
|
||||
* Evaluation of C/N0 Estimators using a Real Time GNSS Software Receiver,"
|
||||
* IEEE 10th International Symposium on Spread Spectrum Techniques and
|
||||
* Applications, pp.28-30, August 2008.
|
||||
*
|
||||
* [2] Van Dierendonck, A.J. (1996), Global Positioning System: Theory and
|
||||
* Applications,
|
||||
* Volume I, Chapter 8: GPS Receivers, AJ Systems, Los Altos, CA 94024.
|
||||
* Inc.: 329-407.
|
||||
* \author Javier Arribas, 2011. jarribas(at)cttc.es
|
||||
*
|
||||
* \authors <ul>
|
||||
* <li> Javier Arribas, 2011. jarribas(at)cttc.es
|
||||
* <li> Luis Esteve, 2012. luis(at)epsilon-formacion.com
|
||||
* </ul>
|
||||
*
|
||||
* -------------------------------------------------------------------------
|
||||
*
|
||||
|
||||
@ -2,8 +2,25 @@
|
||||
* \file CN_estimators.h
|
||||
* \brief Interface of a library with a set of Carrier to Noise
|
||||
* estimators and lock detectors.
|
||||
* \author Javier Arribas, 2011. jarribas(at)cttc.es
|
||||
*
|
||||
* SNV_CN0 is a Carrier-to-Noise (CN0) estimator
|
||||
* based on the Signal-to-Noise Variance (SNV) estimator [1].
|
||||
* Carrier lock detector using normalised estimate of the cosine
|
||||
* of twice the carrier phase error [2].
|
||||
*
|
||||
* [1] Marco Pini, Emanuela Falletti and Maurizio Fantino, "Performance
|
||||
* Evaluation of C/N0 Estimators using a Real Time GNSS Software Receiver,"
|
||||
* IEEE 10th International Symposium on Spread Spectrum Techniques and
|
||||
* Applications, pp.28-30, August 2008.
|
||||
*
|
||||
* [2] Van Dierendonck, A.J. (1996), Global Positioning System: Theory and
|
||||
* Applications,
|
||||
* Volume I, Chapter 8: GPS Receivers, AJ Systems, Los Altos, CA 94024.
|
||||
* Inc.: 329-407.
|
||||
* \authors <ul>
|
||||
* <li> Javier Arribas, 2011. jarribas(at)cttc.es
|
||||
* <li> Luis Esteve, 2012. luis(at)epsilon-formacion.com
|
||||
* </ul>
|
||||
* -------------------------------------------------------------------------
|
||||
*
|
||||
* Copyright (C) 2010-2011 (see AUTHORS file for a list of contributors)
|
||||
@ -34,7 +51,7 @@
|
||||
|
||||
#include <gnuradio/gr_complex.h>
|
||||
|
||||
/*! brief SNV_CN0 is a Carrier-to-Noise (CN0) estimator
|
||||
/*! \brief CN0_SNV is a Carrier-to-Noise (CN0) estimator
|
||||
* based on the Signal-to-Noise Variance (SNV) estimator
|
||||
*
|
||||
* Signal-to-Noise (SNR) (\f$\rho\f$) estimator using the Signal-to-Noise Variance (SNV) estimator:
|
||||
@ -56,6 +73,27 @@
|
||||
* Applications, pp.28-30, August 2008.
|
||||
*/
|
||||
float gps_l1_ca_CN0_SNV(gr_complex* Prompt_buffer, int length, long fs_in);
|
||||
/*! \brief CN0_SNV is a Carrier-to-Noise (CN0) estimator
|
||||
* based on the Signal-to-Noise Variance (SNV) estimator
|
||||
*
|
||||
* Signal-to-Noise (SNR) (\f$\rho\f$) estimator using the Signal-to-Noise Variance (SNV) estimator:
|
||||
* \f{equation}
|
||||
* \hat{\rho}=\frac{\hat{P}_s}{\hat{P}_n}=\frac{\hat{P}_s}{\hat{P}_{tot}-\hat{P}_s},
|
||||
* \f}
|
||||
* where \f$\hat{P}_s=\left(\frac{1}{N}\sum^{N-1}_{i=0}|Re(Pc(i))|\right)^2\f$ is the estimation of the signal power,
|
||||
* \f$\hat{P}_{tot}=\frac{1}{N}\sum^{N-1}_{i=0}|Pc(i)|^2\f$ is the estimator of the total power, \f$|\cdot|\f$ is the absolute value,
|
||||
* \f$Re(\cdot)\f$ stands for the real part of the value, and \f$Pc(i)\f$ is the prompt correlator output for the sample index i.
|
||||
*
|
||||
* The SNR value is converted to CN0 [dB-Hz], taking to account the receiver bandwidth and the PRN code gain, using the following formula:
|
||||
* \f{equation}
|
||||
* CN0_{dB}=10*log(\hat{\rho})+10*log(\frac{f_s}{2})-10*log(L_{PRN}),
|
||||
* \f}
|
||||
* where \f$f_s\f$ is the sampling frequency and \f$L_{PRN}\f$ is the PRN sequence length.
|
||||
* Ref: Marco Pini, Emanuela Falletti and Maurizio Fantino, "Performance
|
||||
* Evaluation of C/N0 Estimators using a Real Time GNSS Software Receiver,"
|
||||
* IEEE 10th International Symposium on Spread Spectrum Techniques and
|
||||
* Applications, pp.28-30, August 2008.
|
||||
*/
|
||||
float galileo_e1_CN0_SNV(gr_complex* Prompt_buffer, int length, long fs_in);
|
||||
|
||||
/*! \brief A carrier lock detector
|
||||
|
||||
@ -1,7 +1,10 @@
|
||||
/*!
|
||||
* \file correlator.cc
|
||||
* \brief Highly optimized vector correlator class
|
||||
* \author Javier Arribas, 2011. jarribas(at)cttc.es
|
||||
* \authors <ul>
|
||||
* <li> Javier Arribas, 2011. jarribas(at)cttc.es
|
||||
* <li> Luis Esteve, 2012. luis(at)epsilon-formacion.com
|
||||
* </ul>
|
||||
*
|
||||
* Class that implements a high optimized vector correlator class.
|
||||
*
|
||||
@ -53,8 +56,6 @@ void Correlator::Carrier_wipeoff_and_EPL_generic(int signal_length_samples,const
|
||||
{
|
||||
gr_complex bb_signal_sample(0,0);
|
||||
|
||||
//std::cout<<"length="<<signal_length_samples<<std::endl;
|
||||
|
||||
*E_out = 0;
|
||||
*P_out = 0;
|
||||
*L_out = 0;
|
||||
|
||||
@ -1,7 +1,10 @@
|
||||
/*!
|
||||
* \file correlator.h
|
||||
* \brief High optimized vector correlator class
|
||||
* \author Javier Arribas, 2012. jarribas(at)cttc.es
|
||||
* \authors <ul>
|
||||
* <li> Javier Arribas, 2011. jarribas(at)cttc.es
|
||||
* <li> Luis Esteve, 2012. luis(at)epsilon-formacion.com
|
||||
* </ul>
|
||||
*
|
||||
* Class that implements a high optimized vector correlator class
|
||||
* using the volk library
|
||||
|
||||
@ -2,9 +2,10 @@
|
||||
* \file tracking_discriminators.cc
|
||||
* \brief Implementation of a library with a set of code tracking
|
||||
* and carrier tracking discriminators that is used by the tracking algorithms.
|
||||
* \author Javier Arribas, 2011. jarribas(at)cttc.es
|
||||
* Luis Esteve, 2012. luis(at)epsilon-formacion.com
|
||||
*
|
||||
* \authors <ul>
|
||||
* <li> Javier Arribas, 2011. jarribas(at)cttc.es
|
||||
* <li> Luis Esteve, 2012. luis(at)epsilon-formacion.com
|
||||
* </ul>
|
||||
*
|
||||
* -------------------------------------------------------------------------
|
||||
*
|
||||
@ -104,7 +105,8 @@ float dll_nc_e_minus_l_normalized(gr_complex early_s1, gr_complex late_s1)
|
||||
}
|
||||
|
||||
/*
|
||||
* DLL Noncoherent Very Early Minus Late Power (VEMLP) normalized discriminator:
|
||||
* DLL Noncoherent Very Early Minus Late Power (VEMLP) normalized discriminator, using the outputs
|
||||
* of four correlators, Very Early (VE), Early (E), Late (L) and Very Late (VL):
|
||||
* \f{equation}
|
||||
* error=\frac{E-L}{E+L},
|
||||
* \f}
|
||||
|
||||
@ -2,8 +2,10 @@
|
||||
* \file tracking_discriminators.h
|
||||
* \brief Interface of a library with a set of code tracking and carrier
|
||||
* tracking discriminators.
|
||||
* \author Javier Arribas, 2011. jarribas(at)cttc.es
|
||||
* Luis Esteve, 2012. luis(at)epsilon-formacion.com
|
||||
* \authors <ul>
|
||||
* <li> Javier Arribas, 2011. jarribas(at)cttc.es
|
||||
* <li> Luis Esteve, 2012. luis(at)epsilon-formacion.com
|
||||
* </ul>
|
||||
*
|
||||
* Library with a set of code tracking and carrier tracking discriminators
|
||||
* that is used by the tracking algorithms.
|
||||
@ -79,15 +81,16 @@ float pll_cloop_two_quadrant_atan(gr_complex prompt_s1);
|
||||
* \f{equation}
|
||||
* error=\frac{E-L}{E+L},
|
||||
* \f}
|
||||
* where \f$E=\sqrt{I_{ES}^2,Q_{ES}^2}\f$ is the Early correlator output absolute value and
|
||||
* \f$L=\sqrt{I_{LS}^2,Q_{LS}^2}\f$ is the Late correlator output absolute value. The output is in [chips].
|
||||
* where \f$E=\sqrt{I_{ES}^2+Q_{ES}^2}\f$ is the Early correlator output absolute value and
|
||||
* \f$L=\sqrt{I_{LS}^2+Q_{LS}^2}\f$ is the Late correlator output absolute value. The output is in [chips].
|
||||
*/
|
||||
float dll_nc_e_minus_l_normalized(gr_complex early_s1, gr_complex late_s1);
|
||||
|
||||
|
||||
/*! \brief DLL Noncoherent Very Early Minus Late Power (VEMLP) normalized discriminator
|
||||
*
|
||||
* DLL Noncoherent Very Early Minus Late Power (VEMLP) normalized discriminator:
|
||||
* DLL Noncoherent Very Early Minus Late Power (VEMLP) normalized discriminator, using the outputs
|
||||
* of four correlators, Very Early (VE), Early (E), Late (L) and Very Late (VL):
|
||||
* \f{equation}
|
||||
* error=\frac{E-L}{E+L},
|
||||
* \f}
|
||||
|
||||
@ -1,6 +1,6 @@
|
||||
/*!
|
||||
* \file fir_filter_test.cc
|
||||
* \brief Implements Unit Test for the fir filter.
|
||||
* \brief Implements Unit Test for the FirFilter class.
|
||||
* \author Luis Esteve, 2012. luis(at)epsilon-formacion.com
|
||||
*
|
||||
* -------------------------------------------------------------------------
|
||||
|
||||
@ -1,6 +1,7 @@
|
||||
/*!
|
||||
* \file galileo_e1_dll_pll_veml_tracking_internal_test.cc
|
||||
* \brief This class implements a tracking test based on some input parameters.
|
||||
* \file galileo_e1_dll_pll_veml_tracking_test.cc
|
||||
* \brief This class implements a tracking test for GalileoE1DllPllVemlTracking
|
||||
* class based on some input parameters.
|
||||
* \author Luis Esteve, 2012. luis(at)epsilon-formacion.com
|
||||
*
|
||||
*
|
||||
@ -67,9 +68,6 @@ protected:
|
||||
}
|
||||
|
||||
void init();
|
||||
void start_queue();
|
||||
void wait_message();
|
||||
void stop_queue();
|
||||
|
||||
gr_msg_queue_sptr queue;
|
||||
gr_top_block_sptr top_block;
|
||||
@ -102,26 +100,6 @@ void GalileoE1DllPllVemlTrackingInternalTest::init(){
|
||||
config->set_property("Tracking.dll_bw_hz", "2.0");
|
||||
}
|
||||
|
||||
void GalileoE1DllPllVemlTrackingInternalTest::start_queue()
|
||||
{
|
||||
ch_thread = boost::thread(&GalileoE1DllPllVemlTrackingInternalTest::wait_message, this);
|
||||
}
|
||||
|
||||
|
||||
void GalileoE1DllPllVemlTrackingInternalTest::wait_message()
|
||||
{
|
||||
while (!stop)
|
||||
{
|
||||
channel_internal_queue.wait_and_pop(message);
|
||||
stop_queue();
|
||||
}
|
||||
}
|
||||
|
||||
void GalileoE1DllPllVemlTrackingInternalTest::stop_queue()
|
||||
{
|
||||
stop = true;
|
||||
}
|
||||
|
||||
|
||||
|
||||
TEST_F(GalileoE1DllPllVemlTrackingInternalTest, Instantiate)
|
||||
|
||||
@ -1,7 +1,7 @@
|
||||
/*!
|
||||
* \file galileo_e1_pcps_ambiguous_acquisition_gsoc_test.cc
|
||||
* \brief This class implements an acquisition test based on GSoC 2012
|
||||
* experiments.
|
||||
* \brief This class implements an acquisition test for
|
||||
* GalileoE1PcpsAmbiguousAcquisition class based on GSoC 2012 experiments.
|
||||
*
|
||||
* This test is a part of an experiment performed by Luis Esteve in the
|
||||
* framework of the Google Summer of Code (GSoC) 2012, with the collaboration
|
||||
@ -9,6 +9,9 @@
|
||||
* to Galileo. The objective is perform a positive acquisition of in-orbit
|
||||
* Galileo signals in the E1 band.
|
||||
*
|
||||
* Report:
|
||||
* https://docs.google.com/document/d/1SZ3m1K7Qf9GsZQGEF7VSOEewBDCjbylCClw9rSXwG7Y/edit?pli=1
|
||||
*
|
||||
* \author Luis Esteve, 2012. luis(at)epsilon-formacion.com
|
||||
*
|
||||
*
|
||||
|
||||
@ -1,6 +1,7 @@
|
||||
/*!
|
||||
* \file galileo_e1_pcps_ambiguous_acquisition_test.cc
|
||||
* \brief This class implements an acquisition test based on some input parameters.
|
||||
* \brief This class implements an acquisition test for
|
||||
* GalileoE1PcpsAmbiguousAcquisition class based on some input parameters.
|
||||
* \author Luis Esteve, 2012. luis(at)epsilon-formacion.com
|
||||
*
|
||||
*
|
||||
|
||||
@ -1,8 +1,12 @@
|
||||
/*!
|
||||
* \file gnss_block_factory_test.cc
|
||||
* \brief This class implements a Unit Test for the class GNSSBlockFactory..
|
||||
* \authors Carlos Avilés, 2010. carlos.avilesr(at)googlemail.com
|
||||
* Luis Esteve, 2012. luis(at)epsilon-formacion.com
|
||||
* \brief This class implements a Unit Test for the GNSSBlockFactory class.
|
||||
* \authors <ul>
|
||||
* <li> Carlos Avilés, 2010. carlos.avilesr(at)googlemail.com
|
||||
* <li> Luis Esteve, 2012. luis(at)epsilon-formacion.com
|
||||
* </ul>
|
||||
*
|
||||
* This class test the instantiation of all blocks in gnss_block_factory
|
||||
*
|
||||
* -------------------------------------------------------------------------
|
||||
*
|
||||
|
||||
@ -1,6 +1,7 @@
|
||||
/*!
|
||||
* \file gps_l1_ca_pcps_acquisition_test.cc
|
||||
* \brief This class implements an acquisition test based on some input parameters.
|
||||
* \brief This class implements an acquisition test for
|
||||
* GpsL1CaPcpsAcquisition class based on some input parameters.
|
||||
* \author Luis Esteve, 2012. luis(at)epsilon-formacion.com
|
||||
*
|
||||
*
|
||||
|
||||
Loading…
Reference in New Issue
Block a user