Hello, I am trying to use USRP N210 to get the code phase of the received satellite signal. And I have the output of Acquisition and Tracking Blocks after running gnss-sdr command according to the instructions ( https://gnss-sdr.org/conf/ ).
However, I cannot understand the usage of these data and I also cannot find some detailed explanation of the output file. I have the following data and could you please tell me how I can calculate the code phase? > %% > *Output of Aquisition Block: acquisition_G_1C_ch_0_173_sat_6.mat* > PRN: 6 > acq_delay_samples: 2550 > acq_doppler_hz: -750 > acq_grid: [4000×64 single] > d_positive_acq: 1 > doppler_max: 8000 > doppler_step: 250 > input_power: 1.0608e+04 > num_dwells: 1 > sample_counter: 744302044 > test_statistic: 0.0609 > threshold: 0.0140 > %% > *Output of Tracking Block: track_ch0.mat* CN0_SNV_dB_Hz: > [1×31544 single] > PRN: [1×31544 uint32] > PRN_start_sample_count: [1×31544 uint64] > Prompt_I: [1×31544 single] > Prompt_Q: [1×31544 single] > abs_E: [1×31544 single] > abs_L: [1×31544 single] > abs_P: [1×31544 single] > abs_VE: [1×31544 single] > abs_VL: [1×31544 single] > acc_carrier_phase_rad: [1×31544 single] > aux1: [1×31544 single] > aux2: [1×31544 double] > carr_error_filt_hz: [1×31544 single] > carr_error_hz: [1×31544 single] > carrier_doppler_hz: [1×31544 single] > carrier_doppler_rate_hz: [1×31544 single] > carrier_lock_test: [1×31544 single] > code_error_chips: [1×31544 single] > code_error_filt_chips: [1×31544 single] > code_freq_chips: [1×31544 single] > code_freq_rate_chips: [1×31544 single] Thank you very much for your help! -- Sincerely, Zhao Xu
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