4 filename = 'output.log';
\r
6 display('Lecture telemetrie ...')
\r
7 tableau = telemetry(filename);
\r
8 display('Fin telemetrie')
\r
11 affich_telemetry(tableau);
\r
15 title('input : pseudorandom noise');
\r
18 title('filtered output');
\r
21 tableau = tableau(2:end, :);
\r
28 Y1 = fft(tableau(:, 1),512);
\r
29 Pyy1 = Y1.* conj(Y1) / 512;
\r
30 f = 1000*(0:256)/512;
\r
31 semilogy(f,Pyy1(1:257))
\r
35 Y1 = fft(tableau(:, 2),512);
\r
36 Pyy1 = Y1.* conj(Y1) / 512;
\r
37 f = 1000*(0:256)/512;
\r
38 semilogy(f,Pyy1(1:257), '-r')
\r
40 xlabel('frequency (Hz)')
\r