% /*!
%  * \file galileo_l1_ca_dll_pll_vml_plot_sample_64bits.m
%  * \brief Read GNSS-SDR Tracking dump binary file using the provided
%  function and plot some internal variables
%  * \author Javier Arribas, 2011. jarribas(at)cttc.es
%  * -------------------------------------------------------------------------
%  *
%  * Copyright (C) 2010-2011  (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 <http://www.gnu.org/licenses/>.
%  *
%  * -------------------------------------------------------------------------
%  */ 
close all;
clear all;
samplingFreq       = 64e6/8;     %[Hz]
channels=2;
%path='/home/javier/workspace/gnss-sdr/trunk/install/';
path='/home/javier/workspace/gnss-sdr/trunk/data/';
clear PRN_absolute_sample_start;
for N=1:1:channels
    tracking_log_path=[path 'veml_tracking_ch_' num2str(N-1) '.dat'];
    GNSS_tracking(N)= galileo_e1_dll_pll_veml_read_tracking_dump_32bits(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_VE = GNSS_tracking(N).VE.';
        trackResults(N).I_E = GNSS_tracking(N).E.';
        trackResults(N).I_L = GNSS_tracking(N).L.';
        trackResults(N).I_VL = GNSS_tracking(N).VL.';
        trackResults(N).Q_VE = zeros(1,length(GNSS_tracking(N).VE));
        trackResults(N).Q_E = zeros(1,length(GNSS_tracking(N).E));
        trackResults(N).Q_L = zeros(1,length(GNSS_tracking(N).L));
        trackResults(N).Q_VL = zeros(1,length(GNSS_tracking(N).VL));
        trackResults(N).PRN = N; %fake PRN
        
        % Use original MATLAB tracking plot function
        settings.numberOfChannels = channels;
        settings.msToProcess = length(GNSS_tracking(N).E)*4;
        plotVEMLTracking(N,trackResults,settings)
end

% for N=1:1:channels
% %  figure;
% %  plot([GNSS_tracking(N).E,GNSS_tracking(N).P,GNSS_tracking(N).L],'-*');
% %  title(['Early, Prompt, and Late correlator absolute value output for channel ' num2str(N)']);
% %  figure;
% %  plot(GNSS_tracking(N).prompt_I,GNSS_tracking(N).prompt_Q,'+');
% %  title(['Navigation constellation plot for channel ' num2str(N)]);
% %  figure;
% %  
% %  plot(GNSS_tracking(N).prompt_Q,'r');
% %  hold on;
% %  plot(GNSS_tracking(N).prompt_I);
% %  title(['Navigation symbols I(red) Q(blue) for channel ' num2str(N)]);
% %  
%  figure;
%  t=0:4:length(GNSS_tracking(N).carrier_doppler_hz)*4-1;
%  t=t/1000;
%  plot(t,GNSS_tracking(N).carrier_doppler_hz/1000);
%  xlabel('Time(s)');ylabel('Doppler(KHz)');title(['Doppler frequency channel ' num2str(N)]);
% end