-
Notifications
You must be signed in to change notification settings - Fork 45
/
plotTracking.m
153 lines (127 loc) · 6.43 KB
/
plotTracking.m
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
function plotTracking(channelList, trackResults, settings)
%This function plots the tracking results for the given channel list.
%
%plotTracking(channelList, trackResults, settings)
%
% Inputs:
% channelList - list of channels to be plotted.
% trackResults - tracking results from the tracking function.
% settings - receiver settings.
%--------------------------------------------------------------------------
% SoftGNSS v3.0
%
% Copyright (C) Darius Plausinaitis
% Written by Darius Plausinaitis
%--------------------------------------------------------------------------
%This program 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 2
%of the License, or (at your option) any later version.
%
%This program 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 this program; if not, write to the Free Software
%Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
%USA.
%--------------------------------------------------------------------------
%CVS record:
%$Id: plotTracking.m,v 1.5.2.23 2006/08/14 14:45:14 dpl Exp $
% Protection - if the list contains incorrect channel numbers
channelList = intersect(channelList, 1:settings.numberOfChannels);
%=== For all listed channels ==============================================
for channelNr = channelList
%% Select (or create) and clear the figure ================================
% The number 200 is added just for more convenient handling of the open
% figure windows, when many figures are closed and reopened.
% Figures drawn or opened by the user, will not be "overwritten" by
% this function.
figure(channelNr +200);
clf(channelNr +200);
set(channelNr +200, 'Name', ['Channel ', num2str(channelNr), ...
' (PRN ', ...
num2str(trackResults(channelNr).PRN), ...
') results']);
%% Draw axes ==============================================================
% Row 1
handles(1, 1) = subplot(3, 3, 1);
handles(1, 2) = subplot(3, 3, [2 3]);
% Row 2
handles(2, 1) = subplot(3, 3, 4);
handles(2, 2) = subplot(3, 3, [5 6]);
% Row 3
handles(3, 1) = subplot(3, 3, 7);
handles(3, 2) = subplot(3, 3, 8);
handles(3, 3) = subplot(3, 3, 9);
%% Plot all figures =======================================================
timeAxisInSeconds = (1:settings.msToProcess)/1000;
%----- Discrete-Time Scatter Plot ---------------------------------
plot(handles(1, 1), trackResults(channelNr).I_P,...
trackResults(channelNr).Q_P, ...
'.');
grid (handles(1, 1));
axis (handles(1, 1), 'equal');
title (handles(1, 1), 'Discrete-Time Scatter Plot');
xlabel(handles(1, 1), 'I prompt');
ylabel(handles(1, 1), 'Q prompt');
%----- Nav bits ---------------------------------------------------
plot (handles(1, 2), timeAxisInSeconds, ...
trackResults(channelNr).I_P);
grid (handles(1, 2));
title (handles(1, 2), 'Bits of the navigation message');
xlabel(handles(1, 2), 'Time (s)');
axis (handles(1, 2), 'tight');
%----- PLL discriminator unfiltered--------------------------------
plot (handles(2, 1), timeAxisInSeconds, ...
trackResults(channelNr).pllDiscr, 'r');
grid (handles(2, 1));
axis (handles(2, 1), 'tight');
xlabel(handles(2, 1), 'Time (s)');
ylabel(handles(2, 1), 'Amplitude');
title (handles(2, 1), 'Raw PLL discriminator');
%----- Correlation ------------------------------------------------
plot(handles(2, 2), timeAxisInSeconds, ...
[sqrt(trackResults(channelNr).I_E.^2 + ...
trackResults(channelNr).Q_E.^2)', ...
sqrt(trackResults(channelNr).I_P.^2 + ...
trackResults(channelNr).Q_P.^2)', ...
sqrt(trackResults(channelNr).I_L.^2 + ...
trackResults(channelNr).Q_L.^2)'], ...
'-*');
grid (handles(2, 2));
title (handles(2, 2), 'Correlation results');
xlabel(handles(2, 2), 'Time (s)');
axis (handles(2, 2), 'tight');
hLegend = legend(handles(2, 2), '$\sqrt{I_{E}^2 + Q_{E}^2}$', ...
'$\sqrt{I_{P}^2 + Q_{P}^2}$', ...
'$\sqrt{I_{L}^2 + Q_{L}^2}$');
%set interpreter from tex to latex. This will draw \sqrt correctly
set(hLegend, 'Interpreter', 'Latex');
%----- PLL discriminator filtered----------------------------------
plot (handles(3, 1), timeAxisInSeconds, ...
trackResults(channelNr).pllDiscrFilt, 'b');
grid (handles(3, 1));
axis (handles(3, 1), 'tight');
xlabel(handles(3, 1), 'Time (s)');
ylabel(handles(3, 1), 'Amplitude');
title (handles(3, 1), 'Filtered PLL discriminator');
%----- DLL discriminator unfiltered--------------------------------
plot (handles(3, 2), timeAxisInSeconds, ...
trackResults(channelNr).dllDiscr, 'r');
grid (handles(3, 2));
axis (handles(3, 2), 'tight');
xlabel(handles(3, 2), 'Time (s)');
ylabel(handles(3, 2), 'Amplitude');
title (handles(3, 2), 'Raw DLL discriminator');
%----- DLL discriminator filtered----------------------------------
plot (handles(3, 3), timeAxisInSeconds, ...
trackResults(channelNr).dllDiscrFilt, 'b');
grid (handles(3, 3));
axis (handles(3, 3), 'tight');
xlabel(handles(3, 3), 'Time (s)');
ylabel(handles(3, 3), 'Amplitude');
title (handles(3, 3), 'Filtered DLL discriminator');
end % for channelNr = channelList