Permalink
Find file Copy path
76 lines (62 sloc) 2.72 KB
% Reads GNSS-SDR Tracking dump binary file using the provided
% function and plots some internal variables
% Javier Arribas, 2011. jarribas(at)cttc.es
% -------------------------------------------------------------------------
%
% Copyright (C) 2010-2018 (see AUTHORS file for a list of contributors)
%
% GNSS-SDR is a software defined Global Navigation
% Satellite Systems receiver
%
% This file is part of GNSS-SDR.
%
% GNSS-SDR is free software: you can redistribute it and/or modify
% it under the terms of the GNU General Public License as published by
% the Free Software Foundation, either version 3 of the License, or
% at your option) any later version.
%
% GNSS-SDR is distributed in the hope that it will be useful,
% but WITHOUT ANY WARRANTY; without even the implied warranty of
% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
% GNU General Public License for more details.
%
% You should have received a copy of the GNU General Public License
% along with GNSS-SDR. If not, see <https://www.gnu.org/licenses/>.
%
% -------------------------------------------------------------------------
%
close all;
clear all;
if ~exist('dll_pll_veml_read_tracking_dump.m', 'file')
addpath('./libs')
end
samplingFreq = 6625000; %[Hz]
channels = 5;
first_channel = 0;
path = '/archive/'; %% CHANGE THIS PATH
for N=1:1:channels
tracking_log_path = [path 'epl_tracking_ch_' num2str(N+first_channel-1) '.dat']; %% CHANGE epl_tracking_ch_ BY YOUR dump_filename
GNSS_tracking(N) = dll_pll_veml_read_tracking_dump(tracking_log_path);
end
% GNSS-SDR format conversion to MATLAB GPS receiver
for N=1:1:channels
trackResults(N).status = 'T'; %fake track
trackResults(N).codeFreq = GNSS_tracking(N).code_freq_hz.';
trackResults(N).carrFreq = GNSS_tracking(N).carrier_doppler_hz.';
trackResults(N).dllDiscr = GNSS_tracking(N).code_error.';
trackResults(N).dllDiscrFilt = GNSS_tracking(N).code_nco.';
trackResults(N).pllDiscr = GNSS_tracking(N).carr_error.';
trackResults(N).pllDiscrFilt = GNSS_tracking(N).carr_nco.';
trackResults(N).I_P = GNSS_tracking(N).prompt_I.';
trackResults(N).Q_P = GNSS_tracking(N).prompt_Q.';
trackResults(N).I_E = GNSS_tracking(N).E.';
trackResults(N).I_L = GNSS_tracking(N).L.';
trackResults(N).Q_E = zeros(1,length(GNSS_tracking(N).E));
trackResults(N).Q_L = zeros(1,length(GNSS_tracking(N).E));
trackResults(N).PRN = ones(1,length(GNSS_tracking(N).E));
trackResults(N).CNo = GNSS_tracking(N).CN0_SNV_dB_Hz.';
% Use original MATLAB tracking plot function
settings.numberOfChannels = channels;
settings.msToProcess = length(GNSS_tracking(N).E);
plotTracking(N, trackResults, settings)
end