mirror of
https://github.com/gnss-sdr/gnss-sdr
synced 2025-11-03 16:53:04 +00:00
52 lines
1.7 KiB
Matlab
52 lines
1.7 KiB
Matlab
% Reads GNSS-SDR Tracking dump binary file using the provided
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% function and plots some internal variables
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% Javier Arribas, 2011. jarribas(at)cttc.es
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% -------------------------------------------------------------------------
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%
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% GNSS-SDR is a Global Navigation Satellite System software-defined receiver.
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% This file is part of GNSS-SDR.
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%
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% Copyright (C) 2010-2019 (see AUTHORS file for a list of contributors)
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% SPDX-License-Identifier: GPL-3.0-or-later
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%
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% -------------------------------------------------------------------------
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%
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close all;clear;
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samplingFreq = 10000000; %[Hz]
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channels=[0:17];
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path='/home/dmiralles/Documents/gnss-sdr/build/';
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addpath('libs/');
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clear PRN_absolute_sample_start;
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for N=1:1:length(channels)
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telemetry_log_path=[path 'telemetry' num2str(channels(N)) '.dat'];
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GNSS_telemetry(N)= gps_l1_ca_read_telemetry_dump(telemetry_log_path);
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end
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%% Plotting values
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%--- Configurations
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chn_num_a = 11;
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chn_num_b = 3;
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%--- Plot results
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figure;
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plot(GNSS_telemetry(chn_num_a).tracking_sample_counter, ...
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GNSS_telemetry(chn_num_a).tow_current_symbol_ms/1000, 'b+');
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hold on;
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grid on;
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plot(GNSS_telemetry(chn_num_b).tracking_sample_counter, ...
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GNSS_telemetry(chn_num_b).tow_current_symbol_ms, 'ro');
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xlabel('TRK Sampling Counter');
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ylabel('Current Symbol TOW');
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legend(['CHN-',num2str(chn_num_a-1)], ['CHN-',num2str(chn_num_b-1)]);
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figure;
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plot(GNSS_telemetry(chn_num_a).tracking_sample_counter, ...
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GNSS_telemetry(chn_num_a).tow, 'b+');
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hold on;
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grid on;
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plot(GNSS_telemetry(chn_num_b).tracking_sample_counter, ...
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GNSS_telemetry(chn_num_b).tow, 'ro');
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xlabel('TRK Sampling Counter');
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ylabel('Decoded Nav TOW');
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legend(['CHN-',num2str(chn_num_a-1)], ['CHN-',num2str(chn_num_b-1)]);
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