Mercurial > hg > ltpda
comparison m-toolbox/test/test_ao_zeropad.m @ 0:f0afece42f48
Import.
| author | Daniele Nicolodi <nicolodi@science.unitn.it> |
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| date | Wed, 23 Nov 2011 19:22:13 +0100 |
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| -1:000000000000 | 0:f0afece42f48 |
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| 2 | |
| 3 % Compute time-series | |
| 4 Nsecs = 1e2; % Number of seconds desired | |
| 5 fs = 10; | |
| 6 | |
| 7 s = ao(plist('tsfcn', 'sin(2*pi*1.137*t)', 'fs', fs, 'Nsecs', Nsecs)); | |
| 8 n = ao(plist('tsfcn', 'randn(size(t))', 'fs', fs, 'Nsecs', Nsecs)); | |
| 9 b = n + s; | |
| 10 | |
| 11 % Zero pad x3 | |
| 12 bz = zeropad(b, plist('Factor', 10)); | |
| 13 | |
| 14 % Zero pad with N samples | |
| 15 cz = zeropad(b, plist('N', 100)); | |
| 16 | |
| 17 iplot(b,bz,cz) | |
| 18 | |
| 19 % Spectra | |
| 20 bxx = abs(fft(b)).^2; | |
| 21 bzxx = abs(fft(bz)).^2; | |
| 22 czxx = abs(fft(cz)).^2; | |
| 23 | |
| 24 iplot(bzxx, bxx, czxx) | |
| 25 |