mirror of https://github.com/gnss-sdr/gnss-sdr
94 lines
3.9 KiB
Matlab
94 lines
3.9 KiB
Matlab
% /*!
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% * \file galileo_l1_ca_dll_pll_vml_plot_sample_64bits.m
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% * \brief Read GNSS-SDR Tracking dump binary file using the provided
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% function and plot some internal variables
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% * \author Javier Arribas, 2011. jarribas(at)cttc.es
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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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% *
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% * GNSS-SDR is a software defined Global Navigation
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% * Satellite Systems receiver
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% *
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% * This file is part of GNSS-SDR.
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% *
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% * GNSS-SDR is free software: you can redistribute it and/or modify
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% * it under the terms of the GNU General Public License as published by
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% * the Free Software Foundation, either version 3 of the License, or
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% * at your option) any later version.
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% *
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% * GNSS-SDR is distributed in the hope that it will be useful,
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% * but WITHOUT ANY WARRANTY; without even the implied warranty of
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% * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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% * GNU General Public License for more details.
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% *
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% * You should have received a copy of the GNU General Public License
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% * along with GNSS-SDR. If not, see <http://www.gnu.org/licenses/>.
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% *
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% * -------------------------------------------------------------------------
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% */
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close all;
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clear all;
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samplingFreq = 64e6/8; %[Hz]
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channels=2;
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%path='/home/javier/workspace/gnss-sdr/trunk/install/';
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path='/home/javier/workspace/gnss-sdr/trunk/data/';
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clear PRN_absolute_sample_start;
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for N=1:1:channels
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tracking_log_path=[path 'veml_tracking_ch_' num2str(N-1) '.dat'];
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GNSS_tracking(N)= galileo_e1_dll_pll_veml_read_tracking_dump_32bits(tracking_log_path);
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end
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% GNSS-SDR format conversion to MATLAB GPS receiver
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for N=1:1:channels
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trackResults(N).status = 'T'; %fake track
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trackResults(N).codeFreq = GNSS_tracking(N).code_freq_hz.';
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trackResults(N).carrFreq = GNSS_tracking(N).carrier_doppler_hz.';
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trackResults(N).dllDiscr = GNSS_tracking(N).code_error.';
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trackResults(N).dllDiscrFilt = GNSS_tracking(N).code_nco.';
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trackResults(N).pllDiscr = GNSS_tracking(N).carr_error.';
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trackResults(N).pllDiscrFilt = GNSS_tracking(N).carr_nco.';
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trackResults(N).I_P = GNSS_tracking(N).prompt_I.';
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trackResults(N).Q_P = GNSS_tracking(N).prompt_Q.';
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trackResults(N).I_VE = GNSS_tracking(N).VE.';
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trackResults(N).I_E = GNSS_tracking(N).E.';
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trackResults(N).I_L = GNSS_tracking(N).L.';
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trackResults(N).I_VL = GNSS_tracking(N).VL.';
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trackResults(N).Q_VE = zeros(1,length(GNSS_tracking(N).VE));
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trackResults(N).Q_E = zeros(1,length(GNSS_tracking(N).E));
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trackResults(N).Q_L = zeros(1,length(GNSS_tracking(N).L));
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trackResults(N).Q_VL = zeros(1,length(GNSS_tracking(N).VL));
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trackResults(N).PRN = N; %fake PRN
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% Use original MATLAB tracking plot function
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settings.numberOfChannels = channels;
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settings.msToProcess = length(GNSS_tracking(N).E)*4;
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plotVEMLTracking(N,trackResults,settings)
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end
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% for N=1:1:channels
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% % figure;
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% % plot([GNSS_tracking(N).E,GNSS_tracking(N).P,GNSS_tracking(N).L],'-*');
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% % title(['Early, Prompt, and Late correlator absolute value output for channel ' num2str(N)']);
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% % figure;
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% % plot(GNSS_tracking(N).prompt_I,GNSS_tracking(N).prompt_Q,'+');
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% % title(['Navigation constellation plot for channel ' num2str(N)]);
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% % figure;
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% %
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% % plot(GNSS_tracking(N).prompt_Q,'r');
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% % hold on;
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% % plot(GNSS_tracking(N).prompt_I);
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% % title(['Navigation symbols I(red) Q(blue) for channel ' num2str(N)]);
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% %
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% figure;
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% t=0:4:length(GNSS_tracking(N).carrier_doppler_hz)*4-1;
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% t=t/1000;
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% plot(t,GNSS_tracking(N).carrier_doppler_hz/1000);
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% xlabel('Time(s)');ylabel('Doppler(KHz)');title(['Doppler frequency channel ' num2str(N)]);
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% end
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