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Code Issues Releases Wiki Activity

Accept non-integer number of samples per code period

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This commit is contained in:
Carles Fernandez
2018-07-13 14:23:14 +02:00
parent 92a6676b9e
commit 0352108a79
10 changed files with 33 additions and 24 deletions
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6
src/algorithms/acquisition/gnuradio_blocks/pcps_acquisition.cc
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@@ -565,7 +565,6 @@ void pcps_acquisition::acquisition_core(unsigned long int samp_count)
gr::thread::scoped_lock lk(d_setlock);
// initialize acquisition algorithm
float magt = 0.0;
int doppler = 0;
uint32_t indext = 0;
int effective_fft_size = (acq_parameters.bit_transition_flag ? d_fft_size / 2 : d_fft_size);
@@ -582,7 +581,6 @@ void pcps_acquisition::acquisition_core(unsigned long int samp_count)
}
}
const gr_complex* in = d_input_signal; // Get the input samples pointer
float fft_normalization_factor = static_cast<float>(d_fft_size) * static_cast<float>(d_fft_size);
d_input_power = 0.0;
d_mag = 0.0;
@@ -650,7 +648,7 @@ void pcps_acquisition::acquisition_core(unsigned long int samp_count)
{
d_test_statistics = first_vs_second_peak_statistic(indext, doppler, d_num_doppler_bins, acq_parameters.doppler_max, d_doppler_step);
}
d_gnss_synchro->Acq_delay_samples = static_cast<double>(indext % acq_parameters.samples_per_code);
d_gnss_synchro->Acq_delay_samples = static_cast<double>(std::fmod(static_cast<float>(indext), acq_parameters.samples_per_code));
d_gnss_synchro->Acq_doppler_hz = static_cast<double>(doppler);
d_gnss_synchro->Acq_samplestamp_samples = samp_count;
}
@@ -691,7 +689,7 @@ void pcps_acquisition::acquisition_core(unsigned long int samp_count)
{
d_test_statistics = first_vs_second_peak_statistic(indext, doppler, acq_parameters.num_doppler_bins_step2, static_cast<int>(d_doppler_center_step_two - (static_cast<float>(acq_parameters.num_doppler_bins_step2) / 2.0) * acq_parameters.doppler_step2), acq_parameters.doppler_step2);
}
d_gnss_synchro->Acq_delay_samples = static_cast<double>(indext % acq_parameters.samples_per_code);
d_gnss_synchro->Acq_delay_samples = static_cast<double>(std::fmod(static_cast<float>(indext), acq_parameters.samples_per_code));
d_gnss_synchro->Acq_doppler_hz = static_cast<double>(doppler);
d_gnss_synchro->Acq_samplestamp_samples = samp_count;
}