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Added test for NaN in de after correlation

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This matches what is done in the GPS L1 C/A DLL/PLL tracking strategy.
This commit is contained in:
Cillian O'Driscoll
2015-10-24 09:42:57 +01:00
parent ed809fabd0
commit b087c638b8
1 changed files with 23 additions and 0 deletions
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23
src/algorithms/tracking/gnuradio_blocks/galileo_e1_de_tracking_cc.cc
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@@ -474,6 +474,29 @@ int galileo_e1_de_tracking_cc::general_work (int noutput_items,gr_vector_int &ni
d_rem_code_phase_samples = rem_code_phase_chips * d_fs_in/Galileo_E1_CODE_CHIP_RATE_HZ;
// check for samples consistency (this should be done before in the receiver / here only if the source is a file)
if (std::isnan((*d_Prompt_Subcarrier_Prompt_Code).real()) == true or
std::isnan((*d_Prompt_Subcarrier_Prompt_Code).imag()) == true ) // or std::isinf(in[i].real())==true or std::isinf(in[i].imag())==true)
{
const int samples_available = ninput_items[0];
d_sample_counter = d_sample_counter + samples_available;
LOG(WARNING) << "Detected NaN samples at sample number " << d_sample_counter;
consume_each(samples_available);
// make an output to not stop the rest of the processing blocks
current_synchro_data.Prompt_I = 0.0;
current_synchro_data.Prompt_Q = 0.0;
current_synchro_data.Tracking_timestamp_secs = static_cast<double>(d_sample_counter) / static_cast<double>(d_fs_in);
current_synchro_data.Carrier_phase_rads = 0.0;
current_synchro_data.Code_phase_secs = 0.0;
current_synchro_data.CN0_dB_hz = 0.0;
current_synchro_data.Flag_valid_tracking = false;
current_synchro_data.Flag_valid_pseudorange = false;
*out[0] = current_synchro_data;
return 1;
}
// consume the input samples:
d_sample_counter += d_current_prn_length_samples;