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removed some unused test functions.

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updated FPGA observables test
This commit is contained in:
Marc Majoral 2018-11-13 17:22:08 +01:00
parent cf56de15de
commit 37c7576e12
9 changed files with 360 additions and 368 deletions
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8
src/algorithms/acquisition/adapters/galileo_e1_pcps_ambiguous_acquisition_fpga.cc
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@ -518,10 +518,10 @@ void GalileoE1PcpsAmbiguousAcquisitionFpga::reset_acquisition(void)
} }
// this function is only used for the unit tests // this function is only used for the unit tests
void GalileoE1PcpsAmbiguousAcquisitionFpga::read_fpga_total_scale_factor(uint32_t *total_scale_factor, uint32_t *fw_scale_factor) //void GalileoE1PcpsAmbiguousAcquisitionFpga::read_fpga_total_scale_factor(uint32_t *total_scale_factor, uint32_t *fw_scale_factor)
{ //{
acquisition_fpga_->read_fpga_total_scale_factor(total_scale_factor, fw_scale_factor); // acquisition_fpga_->read_fpga_total_scale_factor(total_scale_factor, fw_scale_factor);
} //}
void GalileoE1PcpsAmbiguousAcquisitionFpga::connect(gr::top_block_sptr top_block) void GalileoE1PcpsAmbiguousAcquisitionFpga::connect(gr::top_block_sptr top_block)
{ {

2
src/algorithms/acquisition/adapters/galileo_e1_pcps_ambiguous_acquisition_fpga.h
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@ -155,7 +155,7 @@ public:
/*! /*!
* \brief This function is only used in the unit tests * \brief This function is only used in the unit tests
*/ */
void read_fpga_total_scale_factor(uint32_t *total_scale_factor, uint32_t *fw_scale_factor); //void read_fpga_total_scale_factor(uint32_t *total_scale_factor, uint32_t *fw_scale_factor);
/*! /*!
* \brief Stop running acquisition * \brief Stop running acquisition

8
src/algorithms/acquisition/adapters/galileo_e5a_pcps_acquisition_fpga.cc
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@ -394,10 +394,10 @@ void GalileoE5aPcpsAcquisitionFpga::reset_acquisition(void)
} }
// this function is only used for the unit tests // this function is only used for the unit tests
void GalileoE5aPcpsAcquisitionFpga::read_fpga_total_scale_factor(uint32_t *total_scale_factor, uint32_t *fw_scale_factor) //void GalileoE5aPcpsAcquisitionFpga::read_fpga_total_scale_factor(uint32_t *total_scale_factor, uint32_t *fw_scale_factor)
{ //{
acquisition_fpga_->read_fpga_total_scale_factor(total_scale_factor, fw_scale_factor); // acquisition_fpga_->read_fpga_total_scale_factor(total_scale_factor, fw_scale_factor);
} //}
void GalileoE5aPcpsAcquisitionFpga::connect(gr::top_block_sptr top_block) void GalileoE5aPcpsAcquisitionFpga::connect(gr::top_block_sptr top_block)
{ {

2
src/algorithms/acquisition/adapters/galileo_e5a_pcps_acquisition_fpga.h
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@ -143,7 +143,7 @@ public:
/*! /*!
* \brief This function is only used in the unit tests * \brief This function is only used in the unit tests
*/ */
void read_fpga_total_scale_factor(uint32_t *total_scale_factor, uint32_t *fw_scale_factor); //void read_fpga_total_scale_factor(uint32_t *total_scale_factor, uint32_t *fw_scale_factor);
/*! /*!
* \brief Stop running acquisition * \brief Stop running acquisition

8
src/algorithms/acquisition/adapters/gps_l1_ca_pcps_acquisition_fpga.cc
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@ -298,10 +298,10 @@ void GpsL1CaPcpsAcquisitionFpga::reset_acquisition(void)
} }
// this function is only used for the unit tests // this function is only used for the unit tests
void GpsL1CaPcpsAcquisitionFpga::read_fpga_total_scale_factor(uint32_t *total_scale_factor, uint32_t *fw_scale_factor) //void GpsL1CaPcpsAcquisitionFpga::read_fpga_total_scale_factor(uint32_t *total_scale_factor, uint32_t *fw_scale_factor)
{ //{
acquisition_fpga_->read_fpga_total_scale_factor(total_scale_factor, fw_scale_factor); // acquisition_fpga_->read_fpga_total_scale_factor(total_scale_factor, fw_scale_factor);
} //}
void GpsL1CaPcpsAcquisitionFpga::connect(gr::top_block_sptr top_block) void GpsL1CaPcpsAcquisitionFpga::connect(gr::top_block_sptr top_block)

2
src/algorithms/acquisition/adapters/gps_l1_ca_pcps_acquisition_fpga.h
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@ -152,7 +152,7 @@ public:
/*! /*!
* \brief This function is only used in the unit tests * \brief This function is only used in the unit tests
*/ */
void read_fpga_total_scale_factor(uint32_t *total_scale_factor, uint32_t *fw_scale_factor); //void read_fpga_total_scale_factor(uint32_t *total_scale_factor, uint32_t *fw_scale_factor);
/*! /*!
* \brief Stop running acquisition * \brief Stop running acquisition

8
src/algorithms/acquisition/adapters/gps_l5i_pcps_acquisition_fpga.cc
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@ -367,10 +367,10 @@ void GpsL5iPcpsAcquisitionFpga::reset_acquisition(void)
} }
// this function is only used for the unit tests // this function is only used for the unit tests
void GpsL5iPcpsAcquisitionFpga::read_fpga_total_scale_factor(uint32_t *total_scale_factor, uint32_t *fw_scale_factor) //void GpsL5iPcpsAcquisitionFpga::read_fpga_total_scale_factor(uint32_t *total_scale_factor, uint32_t *fw_scale_factor)
{ //{
acquisition_fpga_->read_fpga_total_scale_factor(total_scale_factor, fw_scale_factor); // acquisition_fpga_->read_fpga_total_scale_factor(total_scale_factor, fw_scale_factor);
} //}
void GpsL5iPcpsAcquisitionFpga::connect(gr::top_block_sptr top_block) void GpsL5iPcpsAcquisitionFpga::connect(gr::top_block_sptr top_block)
{ {

2
src/algorithms/acquisition/adapters/gps_l5i_pcps_acquisition_fpga.h
View File

@ -153,7 +153,7 @@ public:
/*! /*!
* \brief This function is only used in the unit tests * \brief This function is only used in the unit tests
*/ */
void read_fpga_total_scale_factor(uint32_t *total_scale_factor, uint32_t *fw_scale_factor); //void read_fpga_total_scale_factor(uint32_t *total_scale_factor, uint32_t *fw_scale_factor);
/*! /*!
* \brief Stop running acquisition * \brief Stop running acquisition

688
src/tests/unit-tests/signal-processing-blocks/observables/hybrid_observables_test_fpga.cc
View File

@ -79,12 +79,15 @@
#define TEST_OBS_MAX_INPUT_COMPLEX_SAMPLES_TOTAL 8192 // maximum DMA sample block size in complex samples #define TEST_OBS_MAX_INPUT_COMPLEX_SAMPLES_TOTAL 8192 // maximum DMA sample block size in complex samples
#define TEST_OBS_COMPLEX_SAMPLE_SIZE 2 // sample size in bytes #define TEST_OBS_COMPLEX_SAMPLE_SIZE 2 // sample size in bytes
#define TEST_OBS_NUM_QUEUES 2 // number of queues (1 for GPS L1/Galileo E1, and 1 for GPS L5/Galileo E5) #define TEST_OBS_NUM_QUEUES 2 // number of queues (1 for GPS L1/Galileo E1, and 1 for GPS L5/Galileo E5)
#define TEST_OBS_NSAMPLES_TRACKING 90000000 // number of samples during which we test the tracking module #define TEST_OBS_NSAMPLES_TRACKING 500000000 // number of samples during which we test the tracking module
#define TEST_OBS_NSAMPLES_FINAL 50000 // number of samples sent after running tracking to unblock the SW if it is waiting for an interrupt of the tracking module #define TEST_OBS_NSAMPLES_FINAL 50000 // number of samples sent after running tracking to unblock the SW if it is waiting for an interrupt of the tracking module
#define TEST_OBS_NSAMPLES_ACQ_DOPPLER_SWEEP 50000000 // number of samples sent to the acquisition module when running acquisition when the HW controls the doppler loop #define TEST_OBS_NSAMPLES_ACQ_DOPPLER_SWEEP 50000000 // number of samples sent to the acquisition module when running acquisition when the HW controls the doppler loop
#define DOWNAMPLING_FILTER_INIT_SAMPLES 100 // some samples to initialize the state of the downsampling filter
#define DOWNSAMPLING_FILTER_DELAY 48
#define DOWNSAMPLING_FILTER_OFFSET_SAMPLES 0
// HW related options // HW related options
bool test_observables_doppler_control_in_sw = 1; // 1 => doppler sweep controlled by the SW test code , 0 => doppler sweep controlled by the HW //bool test_observables_doppler_control_in_sw = 1; // 1 => doppler sweep controlled by the SW test code , 0 => doppler sweep controlled by the HW
bool test_observables_show_results_table = 0; // 1 => show matrix of (doppler, (max value, power sum)) results (only if test_observables_doppler_control_in_sw = 1), 0=> do not show it bool test_observables_show_results_table = 0; // 1 => show matrix of (doppler, (max value, power sum)) results (only if test_observables_doppler_control_in_sw = 1), 0=> do not show it
bool test_observables_skip_samples_already_used = 1; // if test_observables_doppler_control_in_sw = 1 and test_observables_skip_samples_already_used = 1 => for each PRN loop skip the samples used in the previous PRN loops bool test_observables_skip_samples_already_used = 1; // if test_observables_doppler_control_in_sw = 1 and test_observables_skip_samples_already_used = 1 => for each PRN loop skip the samples used in the previous PRN loops
// (exactly in the same way as the SW) // (exactly in the same way as the SW)
@ -381,6 +384,7 @@ struct DMA_handler_args_obs_test {
void *handler_DMA_obs_test(void *arguments) void *handler_DMA_obs_test(void *arguments)
{ {
// DMA process that configures the DMA to send the samples to the acquisition engine // DMA process that configures the DMA to send the samples to the acquisition engine
int tx_fd; // DMA descriptor int tx_fd; // DMA descriptor
FILE *rx_signal_file_id; // Input file descriptor FILE *rx_signal_file_id; // Input file descriptor
@ -393,9 +397,10 @@ void *handler_DMA_obs_test(void *arguments)
unsigned int nsamples_transmitted; unsigned int nsamples_transmitted;
struct DMA_handler_args_obs_test *args = (struct DMA_handler_args_obs_test *) arguments; struct DMA_handler_args *args = (struct DMA_handler_args *) arguments;
unsigned int nsamples_tx = args->nsamples_tx; unsigned int nsamples_tx = args->nsamples_tx;
//printf("in handler DMA to send %d\n", nsamples_tx);
std::string file = args->file; // input filename std::string file = args->file; // input filename
unsigned int skip_used_samples = args->skip_used_samples; unsigned int skip_used_samples = args->skip_used_samples;
@ -415,22 +420,33 @@ void *handler_DMA_obs_test(void *arguments)
printf("DMA can't open input file\n"); printf("DMA can't open input file\n");
exit(1); exit(1);
} }
//printf("in handler DMA waiting for send samples start\n");
while(send_samples_start_obs_test == 0); // wait until acquisition starts while(send_samples_start_obs_test == 0); // wait until acquisition starts
//printf("in handler DMA going to send samples\n");
// skip initial samples // skip initial samples
int skip_samples = (int) FLAGS_skip_samples; int skip_samples = (int) FLAGS_skip_samples;
fseek( rx_signal_file_id, (skip_samples + skip_used_samples)*2, SEEK_SET ); fseek( rx_signal_file_id, (skip_samples + skip_used_samples)*2, SEEK_SET );
//printf("sending %d samples starting at position %d\n", nsamples_tx,skip_samples + skip_used_samples);
//printf("\n dma skip_samples = %d\n", skip_samples);
//printf("\n dma skip used samples = %d\n", skip_used_samples);
//printf("dma skip_samples = %d\n", skip_samples);
//printf("dma skip used samples = %d\n", skip_used_samples);
//printf("dma file_completed = %d\n", file_completed);
//printf("dma nsamples = %d\n", nsamples);
//printf("dma nsamples_tx = %d\n", nsamples_tx);
usleep(50000); // wait some time to give time to the main thread to start the acquisition module usleep(50000); // wait some time to give time to the main thread to start the acquisition module
unsigned int kk;
//printf("enter kk");
//scanf("%d", &kk);
while (file_completed == false) while (file_completed == false)
{ {
//printf("samples sent = %d\n", nsamples);
if (nsamples_tx - nsamples > TEST_OBS_MAX_INPUT_COMPLEX_SAMPLES_TOTAL) if (nsamples_tx - nsamples > MAX_INPUT_COMPLEX_SAMPLES_TOTAL)
{ {
nsamples_block = TEST_OBS_MAX_INPUT_COMPLEX_SAMPLES_TOTAL; nsamples_block = MAX_INPUT_COMPLEX_SAMPLES_TOTAL;
} }
else else
{ {
@ -438,67 +454,84 @@ void *handler_DMA_obs_test(void *arguments)
file_completed = true; file_completed = true;
} }
nread_elements = fread(input_samples_obs_test, sizeof(int8_t), nsamples_block*TEST_OBS_COMPLEX_SAMPLE_SIZE, rx_signal_file_id); nread_elements = fread(input_samples, sizeof(int8_t), nsamples_block*COMPLEX_SAMPLE_SIZE, rx_signal_file_id);
if (nread_elements != nsamples_block * TEST_OBS_COMPLEX_SAMPLE_SIZE) if (nread_elements != nsamples_block * COMPLEX_SAMPLE_SIZE)
{ {
printf("could not read the desired number of samples from the input file\n"); printf("could not read the desired number of samples from the input file\n");
file_completed = true; file_completed = true;
} }
nsamples+=(nread_elements/TEST_OBS_COMPLEX_SAMPLE_SIZE); nsamples+=(nread_elements/COMPLEX_SAMPLE_SIZE);
if (nread_elements > 0) if (nread_elements > 0)
{ {
// for the 32-BIT DMA // for the 32-BIT DMA
dma_index = 0; dma_index = 0;
for (index0 = 0;index0 < (nread_elements);index0+=TEST_OBS_COMPLEX_SAMPLE_SIZE) for (index0 = 0;index0 < (nread_elements);index0+=COMPLEX_SAMPLE_SIZE)
{ {
if (args->freq_band == 0) if (args->freq_band == 0)
{ {
// channel 1 (queue 1) -> E5/L5 // channel 1 (queue 1) -> E5/L5
input_samples_dma_obs_test[dma_index] = 0; input_samples_dma[dma_index] = 0;
input_samples_dma_obs_test[dma_index+1] = 0; input_samples_dma[dma_index+1] = 0;
// channel 0 (queue 0) -> E1/L1 // channel 0 (queue 0) -> E1/L1
input_samples_dma_obs_test[dma_index+2] = input_samples_obs_test[index0]; input_samples_dma[dma_index+2] = input_samples[index0];
input_samples_dma_obs_test[dma_index+3] = input_samples_obs_test[index0+1]; input_samples_dma[dma_index+3] = input_samples[index0+1];
} }
else else
{ {
// channel 1 (queue 1) -> E5/L5 // channel 1 (queue 1) -> E5/L5
input_samples_dma_obs_test[dma_index] = input_samples_obs_test[index0]; input_samples_dma[dma_index] = input_samples[index0];
input_samples_dma_obs_test[dma_index+1] = input_samples_obs_test[index0+1]; input_samples_dma[dma_index+1] = input_samples[index0+1];
// channel 0 (queue 0) -> E1/L1 // channel 0 (queue 0) -> E1/L1
input_samples_dma_obs_test[dma_index+2] = 0; input_samples_dma[dma_index+2] = 0;
input_samples_dma_obs_test[dma_index+3] = 0; input_samples_dma[dma_index+3] = 0;
} }
dma_index += 4; dma_index += 4;
} }
//printf("writing samples to send\n");
nsamples_transmitted = write(tx_fd, &input_samples_dma_obs_test[0], nread_elements*TEST_OBS_NUM_QUEUES); nsamples_transmitted = write(tx_fd, &input_samples_dma[0], nread_elements*NUM_QUEUES);
//printf("exited writing samples to send\n");
if (nsamples_transmitted != nread_elements*TEST_OBS_NUM_QUEUES) if (nsamples_transmitted != nread_elements*NUM_QUEUES)
{ {
std::cout << "Error : DMA could not send all the requested samples" << std::endl; std::cout << "Error : DMA could not send all the requested samples" << std::endl;
} }
} }
} }
close(tx_fd); close(tx_fd);
fclose(rx_signal_file_id); fclose(rx_signal_file_id);
//printf("DMA finished\n");
return NULL; return NULL;
} }
bool HybridObservablesTestFpga::acquire_signal() bool HybridObservablesTestFpga::acquire_signal()
{ {
pthread_t thread_DMA; pthread_t thread_DMA;
int baseband_sampling_freq_acquisition;
// step 0 determine the sampling frequency
if (implementation.compare("GPS_L1_CA_DLL_PLL_Tracking_Fpga") == 0)
{
baseband_sampling_freq_acquisition = baseband_sampling_freq/4; // downsampling filter in L1/E1
printf(" aaaaaa baseband_sampling_freq_acquisition = %d\n", baseband_sampling_freq_acquisition);
}
else if (implementation.compare("Galileo_E1_DLL_PLL_VEML_Tracking_Fpga") == 0)
{
baseband_sampling_freq_acquisition = baseband_sampling_freq/4; // downsampling filter in L1/E1
printf(" aaaaaa baseband_sampling_freq_acquisition = %d\n", baseband_sampling_freq_acquisition);
}
// 1. Setup GNU Radio flowgraph (file_source -> Acquisition_10m) // 1. Setup GNU Radio flowgraph (file_source -> Acquisition_10m)
gr::top_block_sptr top_block; gr::top_block_sptr top_block;
top_block = gr::make_top_block("Acquisition test"); top_block = gr::make_top_block("Acquisition test");
int SV_ID = 1; //initial sv id int SV_ID = 1; //initial sv id
// Satellite signal definition // Satellite signal definition
Gnss_Synchro tmp_gnss_synchro; Gnss_Synchro tmp_gnss_synchro;
tmp_gnss_synchro.Channel_ID = 0; tmp_gnss_synchro.Channel_ID = 0;
@ -510,6 +543,17 @@ bool HybridObservablesTestFpga::acquire_signal()
config->set_property("Acquisition.dump_filename", "./data/acquisition.dat"); config->set_property("Acquisition.dump_filename", "./data/acquisition.dat");
config->set_property("Acquisition.use_CFAR_algorithm", "false"); config->set_property("Acquisition.use_CFAR_algorithm", "false");
config->set_property("Acquisition.item_type", "cshort");
config->set_property("Acquisition.if", "0");
config->set_property("Acquisition.sampled_ms", "4");
config->set_property("Acquisition.select_queue_Fpga", "0");
config->set_property("Acquisition.devicename", "/dev/uio0");
if (implementation.compare("Galileo_E1_DLL_PLL_VEML_Tracking_Fpga") == 0)
{
config->set_property("Acquisition.acquire_pilot", "false");
}
//std::shared_ptr<AcquisitionInterface> acquisition; //std::shared_ptr<AcquisitionInterface> acquisition;
std::shared_ptr<GpsL1CaPcpsAcquisitionFpga> acquisition_GpsL1Ca_Fpga; std::shared_ptr<GpsL1CaPcpsAcquisitionFpga> acquisition_GpsL1Ca_Fpga;
@ -522,7 +566,7 @@ bool HybridObservablesTestFpga::acquire_signal()
//printf("AAAAAAAAAAAAAAAAAAAAA\n"); //printf("AAAAAAAAAAAAAAAAAAAAA\n");
if (implementation.compare("GPS_L1_CA_DLL_PLL_Tracking_Fpga") == 0) if (implementation.compare("GPS_L1_CA_DLL_PLL_Tracking_Fpga") == 0)
{ {
//printf("AAAAAAAAAAAAAAAAAAAAA2222\n"); printf("AAAAAAAAAAAAAAAAAAAAA2222\n");
tmp_gnss_synchro.System = 'G'; tmp_gnss_synchro.System = 'G';
std::string signal = "1C"; std::string signal = "1C";
signal.copy(tmp_gnss_synchro.Signal, 2, 0); signal.copy(tmp_gnss_synchro.Signal, 2, 0);
@ -577,6 +621,8 @@ bool HybridObservablesTestFpga::acquire_signal()
// config->set_property("Acquisition.Zero_padding", "0"); //**Only for E5a** Avoids power loss and doppler ambiguity in bit transitions by correlating one code with twice the input data length, ensuring that at least one full code is present without transitions. If set to 1 it is ON, if set to 0 it is OFF. // config->set_property("Acquisition.Zero_padding", "0"); //**Only for E5a** Avoids power loss and doppler ambiguity in bit transitions by correlating one code with twice the input data length, ensuring that at least one full code is present without transitions. If set to 1 it is ON, if set to 0 it is OFF.
// config->set_property("Acquisition.bit_transition_flag", "false"); // config->set_property("Acquisition.bit_transition_flag", "false");
// acquisition = std::make_shared<GalileoE5aNoncoherentIQAcquisitionCaf>(config.get(), "Acquisition", 1, 0); // acquisition = std::make_shared<GalileoE5aNoncoherentIQAcquisitionCaf>(config.get(), "Acquisition", 1, 0);
//
//
// } // }
else if (implementation.compare("Galileo_E5a_DLL_PLL_Tracking_Fpga") == 0) else if (implementation.compare("Galileo_E5a_DLL_PLL_Tracking_Fpga") == 0)
@ -617,16 +663,8 @@ bool HybridObservablesTestFpga::acquire_signal()
throw(std::exception()); throw(std::exception());
} }
//printf("BBBBBBBBBBBBBBBBBBBBBBBBBB\n"); printf("BBBBBBBBBBBBBBBBBBBBBBBBBB\n");
//acquisition->set_gnss_synchro(&tmp_gnss_synchro);
//acquisition->set_channel(0);
//acquisition->set_doppler_max(config->property("Acquisition.doppler_max", FLAGS_external_signal_acquisition_doppler_max_hz));
//acquisition->set_doppler_step(config->property("Acquisition.doppler_step", FLAGS_external_signal_acquisition_doppler_step_hz));
//acquisition->set_threshold(config->property("Acquisition.threshold", FLAGS_external_signal_acquisition_threshold));
//acquisition->init();
//acquisition->set_local_code();
//acquisition->set_state(1); // Ensure that acquisition starts at the first sample
//acquisition->connect(top_block);
//gr::blocks::file_source::sptr file_source; //gr::blocks::file_source::sptr file_source;
std::string file = FLAGS_signal_file; std::string file = FLAGS_signal_file;
@ -699,179 +737,36 @@ bool HybridObservablesTestFpga::acquire_signal()
} }
setup_fpga_switch_obs_test(); setup_fpga_switch_obs_test();
//printf("CCCCCCCCCCCCCCCCCCCCCCCCCCCC\n");
if (test_observables_doppler_control_in_sw == 0)
{
args.file = file; unsigned int code_length;
args.nsamples_tx = TEST_OBS_NSAMPLES_ACQ_DOPPLER_SWEEP; // number of samples to transfer unsigned int nsamples_to_transfer;
args.skip_used_samples = 0; if (implementation.compare("GPS_L1_CA_DLL_PLL_Tracking_Fpga") == 0)
{
code_length = static_cast<unsigned int>(std::round(static_cast<double>(baseband_sampling_freq_acquisition) / (GPS_L1_CA_CODE_RATE_HZ / GPS_L1_CA_CODE_LENGTH_CHIPS)));
nsamples_to_transfer = static_cast<unsigned int>(std::round(static_cast<double>(baseband_sampling_freq) / (GPS_L1_CA_CODE_RATE_HZ / GPS_L1_CA_CODE_LENGTH_CHIPS)));
printf("dddddd code_length = %d nsamples_to_transfer = %d\n", code_length, nsamples_to_transfer);
}
else if (implementation.compare("Galileo_E1_DLL_PLL_VEML_Tracking_Fpga") == 0)
{
code_length = static_cast<unsigned int>(std::round(static_cast<double>(baseband_sampling_freq_acquisition) / (Galileo_E1_CODE_CHIP_RATE_HZ / Galileo_E1_B_CODE_LENGTH_CHIPS)));
nsamples_to_transfer = static_cast<unsigned int>(std::round(static_cast<double>(baseband_sampling_freq) / (Galileo_E1_CODE_CHIP_RATE_HZ / Galileo_E1_B_CODE_LENGTH_CHIPS)));
printf("dddddd code_length = %d nsamples_to_transfer = %d\n", code_length, nsamples_to_transfer);
}
else if (implementation.compare("Galileo_E5a_DLL_PLL_Tracking_Fpga") == 0)
{
code_length = static_cast<unsigned int>(std::round(static_cast<double>(baseband_sampling_freq) / Galileo_E5a_CODE_CHIP_RATE_HZ * static_cast<double>(Galileo_E5a_CODE_LENGTH_CHIPS)));
nsamples_to_transfer = static_cast<unsigned int>(std::round(static_cast<double>(baseband_sampling_freq) / (GPS_L1_CA_CODE_RATE_HZ / GPS_L1_CA_CODE_LENGTH_CHIPS)));
}
else if (implementation.compare("GPS_L5_DLL_PLL_Tracking_Fpga") == 0)
{
code_length = static_cast<unsigned int>(std::round(static_cast<double>(baseband_sampling_freq) / (GPS_L5i_CODE_RATE_HZ / static_cast<double>(GPS_L5i_CODE_LENGTH_CHIPS))));
nsamples_to_transfer = static_cast<unsigned int>(std::round(static_cast<double>(baseband_sampling_freq) / (GPS_L1_CA_CODE_RATE_HZ / GPS_L1_CA_CODE_LENGTH_CHIPS)));
}
if (implementation.compare("GPS_L1_CA_DLL_PLL_Tracking_Fpga") == 0)
{
acquisition_GpsL1Ca_Fpga->set_single_doppler_flag(0);
args.freq_band = 0;
}
else if (implementation.compare("Galileo_E1_DLL_PLL_VEML_Tracking_Fpga") == 0)
{
acquisition_GpsE1_Fpga->set_single_doppler_flag(0);
args.freq_band = 0;
}
else if (implementation.compare("Galileo_E5a_DLL_PLL_Tracking_Fpga") == 0)
{
acquisition_GpsE5a_Fpga->set_single_doppler_flag(0);
args.freq_band = 1;
}
else if (implementation.compare("GPS_L5_DLL_PLL_Tracking_Fpga") == 0)
{
acquisition_GpsL5_Fpga->set_single_doppler_flag(0);
args.freq_band = 1;
}
for (unsigned int PRN = 1; PRN < MAX_PRN_IDX; PRN++)
{
tmp_gnss_synchro.PRN = PRN;
//acquisition->set_gnss_synchro(&tmp_gnss_synchro);
//acquisition->init();
//acquisition->set_local_code();
//acquisition->reset();
//acquisition->set_state(1);
if (implementation.compare("GPS_L1_CA_DLL_PLL_Tracking_Fpga") == 0)
{
acquisition_GpsL1Ca_Fpga->set_doppler_max(config->property("Acquisition.doppler_max", FLAGS_external_signal_acquisition_doppler_max_hz));
acquisition_GpsL1Ca_Fpga->set_doppler_step(config->property("Acquisition.doppler_step", FLAGS_external_signal_acquisition_doppler_step_hz));
acquisition_GpsL1Ca_Fpga->set_gnss_synchro(&tmp_gnss_synchro);
acquisition_GpsL1Ca_Fpga->init();
acquisition_GpsL1Ca_Fpga->set_local_code();
}
else if (implementation.compare("Galileo_E1_DLL_PLL_VEML_Tracking_Fpga") == 0)
{
acquisition_GpsE1_Fpga->set_doppler_max(config->property("Acquisition.doppler_max", FLAGS_external_signal_acquisition_doppler_max_hz));
acquisition_GpsE1_Fpga->set_doppler_step(config->property("Acquisition.doppler_step", FLAGS_external_signal_acquisition_doppler_step_hz));
acquisition_GpsE1_Fpga->set_gnss_synchro(&tmp_gnss_synchro);
acquisition_GpsE1_Fpga->init();
acquisition_GpsE1_Fpga->set_local_code();
}
else if (implementation.compare("Galileo_E5a_DLL_PLL_Tracking_Fpga") == 0)
{
acquisition_GpsE5a_Fpga->set_doppler_max(config->property("Acquisition.doppler_max", FLAGS_external_signal_acquisition_doppler_max_hz));
acquisition_GpsE5a_Fpga->set_doppler_step(config->property("Acquisition.doppler_step", FLAGS_external_signal_acquisition_doppler_step_hz));
acquisition_GpsE5a_Fpga->set_gnss_synchro(&tmp_gnss_synchro);
acquisition_GpsE5a_Fpga->init();
acquisition_GpsE5a_Fpga->set_local_code();
}
else if (implementation.compare("GPS_L5_DLL_PLL_Tracking_Fpga") == 0)
{
acquisition_GpsL5_Fpga->set_doppler_max(config->property("Acquisition.doppler_max", FLAGS_external_signal_acquisition_doppler_max_hz));
acquisition_GpsL5_Fpga->set_doppler_step(config->property("Acquisition.doppler_step", FLAGS_external_signal_acquisition_doppler_step_hz));
acquisition_GpsL5_Fpga->set_gnss_synchro(&tmp_gnss_synchro);
acquisition_GpsL5_Fpga->init();
acquisition_GpsL5_Fpga->set_local_code();
}
// create DMA child process
if (pthread_create(&thread_DMA, NULL, handler_DMA_obs_test, (void *)&args) < 0)
{
printf("ERROR cannot create DMA Process\n");
}
msg_rx->rx_message = 0;
top_block->start();
pthread_mutex_lock(&mutex_obs_test);
send_samples_start_obs_test = 1;
pthread_mutex_unlock(&mutex_obs_test);
if (implementation.compare("GPS_L1_CA_DLL_PLL_Tracking_Fpga") == 0)
{
acquisition_GpsL1Ca_Fpga->reset();
}
else if (implementation.compare("Galileo_E1_DLL_PLL_VEML_Tracking_Fpga") == 0)
{
acquisition_GpsE1_Fpga->reset();
}
else if (implementation.compare("Galileo_E5a_DLL_PLL_Tracking_Fpga") == 0)
{
acquisition_GpsE5a_Fpga->reset();
}
else if (implementation.compare("GPS_L5_DLL_PLL_Tracking_Fpga") == 0)
{
acquisition_GpsL5_Fpga->reset();
}
if (start_msg == true)
{
std::cout << "Reading external signal file: " << FLAGS_signal_file << std::endl;
std::cout << "Searching for " << System_and_Signal << " Satellites..." << std::endl;
std::cout << "[";
start_msg = false;
}
// wait for the child DMA process to finish
pthread_join(thread_DMA, NULL);
pthread_mutex_lock(&mutex_obs_test);
send_samples_start_obs_test = 0;
pthread_mutex_unlock(&mutex_obs_test);
//msg_rx->rx_message = 0;
//top_block->run();
//if (start_msg == true)
// {
// std::cout << "Reading external signal file: " << FLAGS_signal_file << std::endl;
// std::cout << "Searching for " << System_and_Signal << " Satellites..." << std::endl;
// std::cout << "[";
// start_msg = false;
// }
while (msg_rx->rx_message == 0)
{
usleep(100000);
}
if (msg_rx->rx_message == 1)
{
std::cout << " " << PRN << " ";
gnss_synchro_vec.push_back(tmp_gnss_synchro);
}
else
{
std::cout << " . ";
}
top_block->stop();
//file_source->seek(2 * FLAGS_skip_samples, 0); //skip head. ibyte, two bytes per complex sample
std::cout.flush();
}
}
else
{
//printf("DDDDDDDDDDDDDDDDDDDDDDDDD\n");
unsigned int code_length;
if (implementation.compare("GPS_L1_CA_DLL_PLL_Tracking_Fpga") == 0)
{
//printf("DDDDDDDDDDDDDDDDDDDDDDDDD22222222222\n");
code_length = static_cast<unsigned int>(std::round(static_cast<double>(baseband_sampling_freq) / (GPS_L1_CA_CODE_RATE_HZ / GPS_L1_CA_CODE_LENGTH_CHIPS)));
}
else if (implementation.compare("Galileo_E1_DLL_PLL_VEML_Tracking_Fpga") == 0)
{
code_length = static_cast<unsigned int>(std::round(static_cast<double>(baseband_sampling_freq) / (Galileo_E1_CODE_CHIP_RATE_HZ / Galileo_E1_B_CODE_LENGTH_CHIPS)));
}
else if (implementation.compare("Galileo_E5a_DLL_PLL_Tracking_Fpga") == 0)
{
code_length = static_cast<unsigned int>(std::round(static_cast<double>(baseband_sampling_freq) / Galileo_E5a_CODE_CHIP_RATE_HZ * static_cast<double>(Galileo_E5a_CODE_LENGTH_CHIPS)));
}
else if (implementation.compare("GPS_L5_DLL_PLL_Tracking_Fpga") == 0)
{
code_length = static_cast<unsigned int>(std::round(static_cast<double>(baseband_sampling_freq) / (GPS_L5i_CODE_RATE_HZ / static_cast<double>(GPS_L5i_CODE_LENGTH_CHIPS))));
}
//printf("DDDDDDD3 code_length = %d\n", code_length); //printf("DDDDDDD3 code_length = %d\n", code_length);
float nbits = ceilf(log2f((float)code_length)); float nbits = ceilf(log2f((float)code_length*2));
unsigned int fft_size = pow(2, nbits); unsigned int fft_size = pow(2, nbits);
unsigned int nsamples_total = fft_size; unsigned int nsamples_total = fft_size;
//printf("EEEEEEEEEEEEEEEEEEEEE nbits = %f nsamples_total = %d\n", nbits, fft_size); //printf("EEEEEEEEEEEEEEEEEEEEE nbits = %f nsamples_total = %d\n", nbits, fft_size);
@ -901,31 +796,32 @@ bool HybridObservablesTestFpga::acquire_signal()
int num_doppler_steps = (2*acq_doppler_max)/acq_doppler_step + 1; int num_doppler_steps = (2*acq_doppler_max)/acq_doppler_step + 1;
float result_table[MAX_PRN_IDX][num_doppler_steps][2]; float result_table[MAX_PRN_IDX][num_doppler_steps][3];
uint32_t index_debug[MAX_PRN_IDX];
uint32_t samplestamp_debug[MAX_PRN_IDX];
for (unsigned int PRN = 1; PRN < MAX_PRN_IDX; PRN++) for (unsigned int PRN = 1; PRN < MAX_PRN_IDX; PRN++)
//for (unsigned int PRN = 1; PRN < 2; PRN++)
{ {
//printf("PRN %d\n", PRN);
uint32_t max_index = 0;
float max_magnitude = 0.0;
float second_magnitude = 0.0;
uint64_t initial_sample = 0;
//float power_sum = 0;
uint32_t doppler_index = 0;
uint32_t max_index = 0; uint32_t max_index_iteration;
float max_magnitude = 0.0; uint32_t total_fft_scaling_factor;
uint64_t initial_sample = 0; uint32_t fw_fft_scaling_factor;
float power_sum = 0; float max_magnitude_iteration;
uint32_t doppler_index = 0; float second_magnitude_iteration;
uint64_t initial_sample_iteration;
uint32_t max_index_iteration; //float power_sum_iteration;
float max_magnitude_iteration; uint32_t doppler_index_iteration;
uint64_t initial_sample_iteration; int doppler_shift_selected;
float power_sum_iteration; int doppler_num = 0;
uint32_t doppler_index_iteration;
int doppler_shift_selected;
int doppler_num = 0;
//printf("FFFFFFFFFFFFFFFFFFFFFFFFF PRN= %d\n", PRN);
//printf("acq_doppler_max = %d acq_doppler_step = %d", acq_doppler_max, acq_doppler_step);
// debug
//acq_doppler_step = 250;
//int dummyflag;
//printf("PRN = %d type a number \n", PRN);
//std::cin >> dummyflag;
for (int doppler_shift = -acq_doppler_max;doppler_shift <= acq_doppler_max;doppler_shift = doppler_shift + acq_doppler_step) for (int doppler_shift = -acq_doppler_max;doppler_shift <= acq_doppler_max;doppler_shift = doppler_shift + acq_doppler_step)
{ {
@ -937,73 +833,119 @@ bool HybridObservablesTestFpga::acquire_signal()
send_samples_start_obs_test = 0; send_samples_start_obs_test = 0;
pthread_mutex_unlock(&mutex_obs_test); pthread_mutex_unlock(&mutex_obs_test);
if (implementation.compare("GPS_L1_CA_DLL_PLL_Tracking_Fpga") == 0) if (implementation.compare("GPS_L1_CA_DLL_PLL_Tracking_Fpga") == 0)
{ {
acquisition_GpsL1Ca_Fpga->reset_acquisition(); // reset the whole system including the sample counters acquisition_GpsL1Ca_Fpga->reset_acquisition(); // reset the whole system including the sample counters
acquisition_GpsL1Ca_Fpga->set_doppler_max(doppler_shift); acquisition_GpsL1Ca_Fpga->set_doppler_max(doppler_shift);
acquisition_GpsL1Ca_Fpga->set_doppler_step(0); acquisition_GpsL1Ca_Fpga->set_doppler_step(0);
acquisition_GpsL1Ca_Fpga->set_gnss_synchro(&tmp_gnss_synchro); acquisition_GpsL1Ca_Fpga->set_gnss_synchro(&tmp_gnss_synchro);
acquisition_GpsL1Ca_Fpga->init(); acquisition_GpsL1Ca_Fpga->init();
acquisition_GpsL1Ca_Fpga->set_local_code(); acquisition_GpsL1Ca_Fpga->set_local_code();
args.freq_band = 0; args.freq_band = 0;
} }
else if (implementation.compare("Galileo_E1_DLL_PLL_VEML_Tracking_Fpga") == 0) else if (implementation.compare("Galileo_E1_DLL_PLL_VEML_Tracking_Fpga") == 0)
{ {
//printf("starting configuring acquisition\n"); //printf("starting configuring acquisition\n");
acquisition_GpsE1_Fpga->reset_acquisition(); // reset the whole system including the sample counters acquisition_GpsE1_Fpga->reset_acquisition(); // reset the whole system including the sample counters
acquisition_GpsE1_Fpga->set_doppler_max(doppler_shift); acquisition_GpsE1_Fpga->set_doppler_max(doppler_shift);
acquisition_GpsE1_Fpga->set_doppler_step(0); acquisition_GpsE1_Fpga->set_doppler_step(0);
acquisition_GpsE1_Fpga->set_gnss_synchro(&tmp_gnss_synchro); acquisition_GpsE1_Fpga->set_gnss_synchro(&tmp_gnss_synchro);
acquisition_GpsE1_Fpga->init(); acquisition_GpsE1_Fpga->init();
acquisition_GpsE1_Fpga->set_local_code(); acquisition_GpsE1_Fpga->set_local_code();
args.freq_band = 0; args.freq_band = 0;
//printf("ending configuring acquisition\n"); //printf("ffffffffffff ending configuring acquisition\n");
} }
else if (implementation.compare("Galileo_E5a_DLL_PLL_Tracking_Fpga") == 0) else if (implementation.compare("Galileo_E5a_DLL_PLL_Tracking_Fpga") == 0)
{ {
acquisition_GpsE5a_Fpga->reset_acquisition(); // reset the whole system including the sample counters acquisition_GpsE5a_Fpga->reset_acquisition(); // reset the whole system including the sample counters
acquisition_GpsE5a_Fpga->set_doppler_max(doppler_shift); acquisition_GpsE5a_Fpga->set_doppler_max(doppler_shift);
acquisition_GpsE5a_Fpga->set_doppler_step(0); acquisition_GpsE5a_Fpga->set_doppler_step(0);
acquisition_GpsE5a_Fpga->set_gnss_synchro(&tmp_gnss_synchro); acquisition_GpsE5a_Fpga->set_gnss_synchro(&tmp_gnss_synchro);
acquisition_GpsE5a_Fpga->init(); acquisition_GpsE5a_Fpga->init();
acquisition_GpsE5a_Fpga->set_local_code(); acquisition_GpsE5a_Fpga->set_local_code();
args.freq_band = 1; args.freq_band = 1;
} }
else if (implementation.compare("GPS_L5_DLL_PLL_Tracking_Fpga") == 0) else if (implementation.compare("GPS_L5_DLL_PLL_Tracking_Fpga") == 0)
{ {
acquisition_GpsL5_Fpga->reset_acquisition(); // reset the whole system including the sample counters acquisition_GpsL5_Fpga->reset_acquisition(); // reset the whole system including the sample counters
acquisition_GpsL5_Fpga->set_doppler_max(doppler_shift); acquisition_GpsL5_Fpga->set_doppler_max(doppler_shift);
acquisition_GpsL5_Fpga->set_doppler_step(0); acquisition_GpsL5_Fpga->set_doppler_step(0);
acquisition_GpsL5_Fpga->set_gnss_synchro(&tmp_gnss_synchro); acquisition_GpsL5_Fpga->set_gnss_synchro(&tmp_gnss_synchro);
acquisition_GpsL5_Fpga->init(); acquisition_GpsL5_Fpga->init();
acquisition_GpsL5_Fpga->set_local_code(); acquisition_GpsL5_Fpga->set_local_code();
args.freq_band = 1; args.freq_band = 1;
} }
args.file = file; args.file = file;
args.nsamples_tx = fft_size; //50000; // max size of the FFT
if (test_observables_skip_samples_already_used == 1) if ((implementation.compare("GPS_L1_CA_DLL_PLL_Tracking_Fpga") == 0) or (implementation.compare("Galileo_E1_DLL_PLL_VEML_Tracking_Fpga") == 0))
{ {
args.skip_used_samples = (PRN -1)*fft_size; //printf("gggggggg \n");
} //----------------------------------------------------------------------------------
else // send the previous samples to set the downsampling filter in a good condition
{ send_samples_start_obs_test = 0;
args.skip_used_samples = 0; if (skip_samples_already_used == 1)
} {
args.skip_used_samples = (PRN -1)*fft_size - DOWNAMPLING_FILTER_INIT_SAMPLES; // set the counter 2000 samples before
}
else
{
args.skip_used_samples = - DOWNAMPLING_FILTER_INIT_SAMPLES; // set the counter 2000 samples before
}
args.nsamples_tx = DOWNAMPLING_FILTER_INIT_SAMPLES + DOWNSAMPLING_FILTER_DELAY + DOWNSAMPLING_FILTER_OFFSET_SAMPLES; //50000; // max size of the FFT
//printf("sending pre init %d\n", args.nsamples_tx);
if (pthread_create(&thread_DMA, NULL, handler_DMA_obs_test, (void *)&args) < 0)
{
printf("ERROR cannot create DMA Process\n");
}
pthread_mutex_lock(&mutex);
send_samples_start_obs_test = 1;
pthread_mutex_unlock(&mutex);
pthread_join(thread_DMA, NULL);
send_samples_start_obs_test = 0;
//printf("finished sending samples init filter status and back to main thread\n");
//-----------------------------------------------------------------------------------
// debug
args.nsamples_tx = nsamples_to_transfer; //fft_size; //50000; // max size of the FFT
if (skip_samples_already_used == 1)
{
args.skip_used_samples = (PRN -1)*fft_size + DOWNSAMPLING_FILTER_DELAY + DOWNSAMPLING_FILTER_OFFSET_SAMPLES;
}
else
{
args.skip_used_samples = DOWNSAMPLING_FILTER_DELAY + DOWNSAMPLING_FILTER_OFFSET_SAMPLES;
}
}
else
{
// debug
args.nsamples_tx = nsamples_to_transfer; //fft_size; //50000; // max size of the FFT
if (skip_samples_already_used == 1)
{
args.skip_used_samples = (PRN -1)*fft_size;
}
else
{
args.skip_used_samples = 0;
}
}
// create DMA child process // create DMA child process
if (pthread_create(&thread_DMA, NULL, handler_DMA_obs_test, (void *)&args) < 0) if (pthread_create(&thread_DMA, NULL, handler_DMA_obs_test, (void *)&args) < 0)
{ {
printf("ERROR cannot create DMA Process\n"); printf("ERROR cannot create DMA Process\n");
} }
// else
// {
// printf("$$$$$$$$$$$$44 CREATED DMA PROCESS\n");
// }
msg_rx->rx_message = 0; msg_rx->rx_message = 0;
top_block->start(); top_block->start();
@ -1049,45 +991,71 @@ bool HybridObservablesTestFpga::acquire_signal()
usleep(100000); usleep(100000);
} }
if (implementation.compare("GPS_L1_CA_DLL_PLL_Tracking_Fpga") == 0) if (implementation.compare("GPS_L1_CA_DLL_PLL_Tracking_Fpga") == 0)
{ {
// UPDATE! acquisition_GpsL1Ca_Fpga->read_acquisition_results(&max_index_iteration, &max_magnitude_iteration, &second_magnitude_iteration, &initial_sample_iteration, &doppler_index_iteration, &total_fft_scaling_factor);
//acquisition_GpsL1Ca_Fpga->read_acquisition_results(&max_index_iteration, &max_magnitude_iteration,&initial_sample_iteration, &power_sum_iteration, &doppler_index_iteration); //acquisition_GpsL1Ca_Fpga->read_fpga_total_scale_factor(&total_fft_scaling_factor, &fw_fft_scaling_factor);
} }
else if (implementation.compare("Galileo_E1_DLL_PLL_VEML_Tracking_Fpga") == 0) else if (implementation.compare("Galileo_E1_DLL_PLL_VEML_Tracking_Fpga") == 0)
{ {
// UPDATE! //printf("iiiiiiiiiiiiii\n");
//acquisition_GpsE1_Fpga->read_acquisition_results(&max_index_iteration, &max_magnitude_iteration,&initial_sample_iteration, &power_sum_iteration, &doppler_index_iteration); acquisition_GpsE1_Fpga->read_acquisition_results(&max_index_iteration, &max_magnitude_iteration, &second_magnitude_iteration, &initial_sample_iteration, &doppler_index_iteration, &total_fft_scaling_factor);
} //acquisition_GpsE1_Fpga->read_fpga_total_scale_factor(&total_fft_scaling_factor, &fw_fft_scaling_factor);
else if (implementation.compare("Galileo_E5a_DLL_PLL_Tracking_Fpga") == 0) }
{ else if (implementation.compare("Galileo_E5a_DLL_PLL_Tracking_Fpga") == 0)
// UPDATE! {
//acquisition_GpsE5a_Fpga->read_acquisition_results(&max_index_iteration, &max_magnitude_iteration,&initial_sample_iteration, &power_sum_iteration, &doppler_index_iteration); acquisition_GpsE5a_Fpga->read_acquisition_results(&max_index_iteration, &max_magnitude_iteration, &second_magnitude_iteration, &initial_sample_iteration, &doppler_index_iteration, &total_fft_scaling_factor);
} //acquisition_GpsE5a_Fpga->read_fpga_total_scale_factor(&total_fft_scaling_factor, &fw_fft_scaling_factor);
else if (implementation.compare("GPS_L5_DLL_PLL_Tracking_Fpga") == 0) }
{ else if (implementation.compare("GPS_L5_DLL_PLL_Tracking_Fpga") == 0)
// UPDATE! {
//acquisition_GpsL5_Fpga->read_acquisition_results(&max_index_iteration, &max_magnitude_iteration,&initial_sample_iteration, &power_sum_iteration, &doppler_index_iteration); acquisition_GpsL5_Fpga->read_acquisition_results(&max_index_iteration, &max_magnitude_iteration, &second_magnitude_iteration, &initial_sample_iteration, &doppler_index_iteration, &total_fft_scaling_factor);
} //acquisition_GpsL5_Fpga->read_fpga_total_scale_factor(&total_fft_scaling_factor, &fw_fft_scaling_factor);
}
result_table[PRN][doppler_num][0] = max_magnitude_iteration; result_table[PRN][doppler_num][0] = max_magnitude_iteration;
result_table[PRN][doppler_num][1] = power_sum_iteration; result_table[PRN][doppler_num][1] = second_magnitude_iteration;
result_table[PRN][doppler_num][2] = total_fft_scaling_factor;
doppler_num = doppler_num + 1; doppler_num = doppler_num + 1;
if (max_magnitude_iteration > max_magnitude) if ((implementation.compare("GPS_L1_CA_DLL_PLL_Tracking_Fpga") == 0) or (implementation.compare("Galileo_E1_DLL_PLL_VEML_Tracking_Fpga") == 0))
{
//printf("jjjjjjjjjjjjjjj\n");
if (max_magnitude_iteration > max_magnitude)
{
int interpolation_factor = 4;
index_debug[PRN - 1] = max_index_iteration;
max_index = max_index_iteration; // - interpolation_factor*(DOWNSAMPLING_FILTER_DELAY - 1);
max_magnitude = max_magnitude_iteration;
second_magnitude = second_magnitude_iteration;
samplestamp_debug[PRN - 1] = initial_sample_iteration;
initial_sample = 0; //initial_sample_iteration;
doppler_index = doppler_index_iteration;
doppler_shift_selected = doppler_shift;
}
}
else
{ {
max_index = max_index_iteration;
max_magnitude = max_magnitude_iteration; if (max_magnitude_iteration > max_magnitude)
initial_sample = initial_sample_iteration; {
power_sum = power_sum_iteration; max_index = max_index_iteration;
doppler_index = doppler_index_iteration; max_magnitude = max_magnitude_iteration;
doppler_shift_selected = doppler_shift; second_magnitude = second_magnitude_iteration;
initial_sample = initial_sample_iteration;
doppler_index = doppler_index_iteration;
doppler_shift_selected = doppler_shift;
}
} }
top_block->stop(); top_block->stop();
} }
power_sum = (power_sum - max_magnitude) / (fft_size - 1);
float test_statistics = (max_magnitude / power_sum); // power_sum = (power_sum - max_magnitude) / (fft_size - 1);
// float test_statistics = (max_magnitude / power_sum);
// float threshold = config->property("Acquisition.threshold", FLAGS_external_signal_acquisition_threshold);
// if (test_statistics > threshold)
float test_statistics = max_magnitude/second_magnitude;
float threshold = config->property("Acquisition.threshold", FLAGS_external_signal_acquisition_threshold); float threshold = config->property("Acquisition.threshold", FLAGS_external_signal_acquisition_threshold);
if (test_statistics > threshold) if (test_statistics > threshold)
{ {
@ -1113,11 +1081,15 @@ bool HybridObservablesTestFpga::acquire_signal()
} }
uint32_t max_index = 0; uint32_t max_index = 0;
float max_magnitude = 0.0; uint32_t total_fft_scaling_factor;
uint64_t initial_sample = 0; //uint32_t fw_fft_scaling_factor;
float power_sum = 0; float max_magnitude = 0.0;
uint32_t doppler_index = 0; uint64_t initial_sample = 0;
float second_magnitude = 0;
float peak_to_power = 0;
float test_statistics;
uint32_t doppler_index = 0;
if (test_observables_show_results_table == 1) if (test_observables_show_results_table == 1)
{ {
@ -1128,20 +1100,25 @@ bool HybridObservablesTestFpga::acquire_signal()
for (int doppler_shift = -acq_doppler_max;doppler_shift <= acq_doppler_max;doppler_shift = doppler_shift + acq_doppler_step) for (int doppler_shift = -acq_doppler_max;doppler_shift <= acq_doppler_max;doppler_shift = doppler_shift + acq_doppler_step)
{ {
max_magnitude = result_table[PRN][doppler_num][0]; max_magnitude = result_table[PRN][doppler_num][0];
power_sum = result_table[PRN][doppler_num][1]; //power_sum = result_table[PRN][doppler_num][1];
second_magnitude = result_table[PRN][doppler_num][1];
total_fft_scaling_factor = result_table[PRN][doppler_num][2];
doppler_num = doppler_num + 1; doppler_num = doppler_num + 1;
std::cout << "Doppler shift " << doppler_shift << std::endl; std::cout << "==================== Doppler shift " << doppler_shift << std::endl;
std::cout << "Max magnitude = " << max_magnitude << "Power sum = " << power_sum << std::endl; std::cout << "Max magnitude = " << max_magnitude << std::endl;
std::cout << "Second magnitude = " << second_magnitude << std::endl;
power_sum = (power_sum - max_magnitude) / (fft_size - 1); std::cout << "FFT total scaling factor = " << total_fft_scaling_factor << std::endl;
float test_statistics = (max_magnitude / power_sum); test_statistics = (max_magnitude / second_magnitude);
std::cout << "test_statistics = " << test_statistics << std::endl; std::cout << " test_statistics = " << test_statistics << std::endl;
} }
int dummy_val;
std::cout << "Enter a value to continue";
std::cin >> dummy_val;
} }
} }
} // }
std::cout << "]" << std::endl; std::cout << "]" << std::endl;
std::cout << "-------------------------------------------\n"; std::cout << "-------------------------------------------\n";
@ -1168,6 +1145,9 @@ bool HybridObservablesTestFpga::acquire_signal()
{ {
return false; return false;
} }
return true;
} }
@ -1939,6 +1919,7 @@ TEST_F(HybridObservablesTestFpga, ValidationOfResults)
gnss_synchro_vec.push_back(tmp_gnss_synchro); gnss_synchro_vec.push_back(tmp_gnss_synchro);
} }
} }
printf("KKKKKKKKK FIRST PART FINISHED\n");
//printf("@@@@@@@@@@@@@@@@@@@@@@@@@@ Signal Acquired\n"); //printf("@@@@@@@@@@@@@@@@@@@@@@@@@@ Signal Acquired\n");
configure_receiver(FLAGS_PLL_bw_hz_start, configure_receiver(FLAGS_PLL_bw_hz_start,
@ -1998,29 +1979,39 @@ TEST_F(HybridObservablesTestFpga, ValidationOfResults)
} }
} }
//printf("@@@@@@@@@@@@@@@@@@@@@@@@@@ First part is done\n"); printf("@@@@@@@@@@@@@@@@@@@@@@@@@@ First part is done\n");
unsigned int code_length; unsigned int code_length;
if (implementation.compare("GPS_L1_CA_DLL_PLL_Tracking_Fpga") == 0) //unsigned int nsamples_to_transfer;
{
code_length = static_cast<unsigned int>(std::round(static_cast<double>(baseband_sampling_freq) / (GPS_L1_CA_CODE_RATE_HZ / GPS_L1_CA_CODE_LENGTH_CHIPS)));
//printf("000000000000 code_length = %d\n", code_length);
}
else if (implementation.compare("Galileo_E1_DLL_PLL_VEML_Tracking_Fpga") == 0)
{
code_length = static_cast<unsigned int>(std::round(static_cast<double>(baseband_sampling_freq) / (Galileo_E1_CODE_CHIP_RATE_HZ / Galileo_E1_B_CODE_LENGTH_CHIPS)));
}
else if (implementation.compare("Galileo_E5a_DLL_PLL_Tracking_Fpga") == 0)
{
code_length = static_cast<unsigned int>(std::round(static_cast<double>(baseband_sampling_freq) / Galileo_E5a_CODE_CHIP_RATE_HZ * static_cast<double>(Galileo_E5a_CODE_LENGTH_CHIPS)));
}
else if (implementation.compare("GPS_L5_DLL_PLL_Tracking_Fpga") == 0)
{
code_length = static_cast<unsigned int>(std::round(static_cast<double>(baseband_sampling_freq) / (GPS_L5i_CODE_RATE_HZ / static_cast<double>(GPS_L5i_CODE_LENGTH_CHIPS))));
}
float nbits = ceilf(log2f((float)code_length)); if (implementation.compare("GPS_L1_CA_DLL_PLL_Tracking_Fpga") == 0)
{
code_length = static_cast<unsigned int>(std::round(static_cast<double>(baseband_sampling_freq) / (GPS_L1_CA_CODE_RATE_HZ / GPS_L1_CA_CODE_LENGTH_CHIPS)));
//nsamples_to_transfer = static_cast<unsigned int>(std::round(static_cast<double>(baseband_sampling_freq) / (GPS_L1_CA_CODE_RATE_HZ / GPS_L1_CA_CODE_LENGTH_CHIPS)));
printf("sssssss code_length = %d \n", code_length);
}
else if (implementation.compare("Galileo_E1_DLL_PLL_VEML_Tracking_Fpga") == 0)
{
code_length = static_cast<unsigned int>(std::round(static_cast<double>(baseband_sampling_freq) / (Galileo_E1_CODE_CHIP_RATE_HZ / Galileo_E1_B_CODE_LENGTH_CHIPS)));
//nsamples_to_transfer = static_cast<unsigned int>(std::round(static_cast<double>(baseband_sampling_freq) / (Galileo_E1_CODE_CHIP_RATE_HZ / Galileo_E1_B_CODE_LENGTH_CHIPS)));
printf("sssssss code_length = %d \n", code_length);
}
else if (implementation.compare("Galileo_E5a_DLL_PLL_Tracking_Fpga") == 0)
{
code_length = static_cast<unsigned int>(std::round(static_cast<double>(baseband_sampling_freq) / Galileo_E5a_CODE_CHIP_RATE_HZ * static_cast<double>(Galileo_E5a_CODE_LENGTH_CHIPS)));
//nsamples_to_transfer = static_cast<unsigned int>(std::round(static_cast<double>(baseband_sampling_freq) / (GPS_L1_CA_CODE_RATE_HZ / GPS_L1_CA_CODE_LENGTH_CHIPS)));
printf("sssssss code_length = %d \n", code_length);
}
else if (implementation.compare("GPS_L5_DLL_PLL_Tracking_Fpga") == 0)
{
code_length = static_cast<unsigned int>(std::round(static_cast<double>(baseband_sampling_freq) / (GPS_L5i_CODE_RATE_HZ / static_cast<double>(GPS_L5i_CODE_LENGTH_CHIPS))));
//nsamples_to_transfer = static_cast<unsigned int>(std::round(static_cast<double>(baseband_sampling_freq) / (GPS_L1_CA_CODE_RATE_HZ / GPS_L1_CA_CODE_LENGTH_CHIPS)));
printf("sssssss code_length = %d \n", code_length);
}
float nbits = ceilf(log2f((float)code_length*2));
unsigned int fft_size = pow(2, nbits); unsigned int fft_size = pow(2, nbits);
//printf("000000000000 nbits = %f\n", nbits); //printf("000000000000 nbits = %f\n", nbits);
//printf("000000000000 fft_size = %d\n", fft_size); //printf("000000000000 fft_size = %d\n", fft_size);
@ -2167,7 +2158,7 @@ TEST_F(HybridObservablesTestFpga, ValidationOfResults)
args.skip_used_samples = 0; args.skip_used_samples = 0;
//} //}
//printf("2222222222222 CREATE PROCES\n"); printf("2222222222222 CREATE PROCES\n");
printf("%s\n", file.c_str()); printf("%s\n", file.c_str());
if (pthread_create(&thread_DMA, NULL, handler_DMA_obs_test, (void *)&args) < 0) if (pthread_create(&thread_DMA, NULL, handler_DMA_obs_test, (void *)&args) < 0)
{ {
@ -2185,7 +2176,7 @@ TEST_F(HybridObservablesTestFpga, ValidationOfResults)
pthread_mutex_unlock(&mutex_obs_test); pthread_mutex_unlock(&mutex_obs_test);
top_block->start(); top_block->start();
//printf("33333333333333333333 top block started\n"); printf("33333333333333333333 top block started\n");
@ -2199,11 +2190,11 @@ TEST_F(HybridObservablesTestFpga, ValidationOfResults)
// wait for the child DMA process to finish // wait for the child DMA process to finish
pthread_join(thread_DMA, NULL); pthread_join(thread_DMA, NULL);
//printf("444444444444 CHILD PROCESS FINISHED\n"); printf("444444444444 CHILD PROCESS FINISHED\n");
top_block->stop(); top_block->stop();
//printf("55555555555 TOP BLOCK STOPPED\n"); printf("55555555555 TOP BLOCK STOPPED\n");
// send more samples to unblock the tracking process in case it was waiting for samples // send more samples to unblock the tracking process in case it was waiting for samples
args.file = file; args.file = file;
@ -2223,7 +2214,7 @@ TEST_F(HybridObservablesTestFpga, ValidationOfResults)
printf("ERROR cannot create DMA Process\n"); printf("ERROR cannot create DMA Process\n");
} }
pthread_join(thread_DMA, NULL); pthread_join(thread_DMA, NULL);
//printf("777777777 PROCESS FINISHED \n"); printf("777777777 PROCESS FINISHED \n");
pthread_mutex_lock(&mutex_obs_test); pthread_mutex_lock(&mutex_obs_test);
send_samples_start_obs_test = 0; send_samples_start_obs_test = 0;
@ -2459,5 +2450,6 @@ TEST_F(HybridObservablesTestFpga, ValidationOfResults)
std::cout << "PRN " << gnss_synchro_vec.at(n).PRN << " has NO observations!\n"; std::cout << "PRN " << gnss_synchro_vec.at(n).PRN << " has NO observations!\n";
} }
} }
std::cout << "Test completed in " << elapsed_seconds.count() << " [s]" << std::endl; std::cout << "Test completed in " << elapsed_seconds.count() << " [s]" << std::endl;
} }