diff options
| author | Tom Rondeau <trondeau@vt.edu> | 2010-04-15 00:34:05 -0400 |
|---|---|---|
| committer | Tom Rondeau <trondeau@vt.edu> | 2010-04-15 00:34:05 -0400 |
| commit | 434c113106e0f18b08392e32829015ffdd866513 (patch) | |
| tree | ccaf8325d1e124432596b68fcc947d9cf5719683 /gnuradio-examples/python/pfb/channelize.py | |
| parent | 2a2e808f56df2a0bf1704aa20b03d0ed4f5bdd5e (diff) | |
New matplotlib does the fftshift for us when doing mlab.psd. This makes the figures make sense again.
Diffstat (limited to 'gnuradio-examples/python/pfb/channelize.py')
| -rwxr-xr-x | gnuradio-examples/python/pfb/channelize.py | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/gnuradio-examples/python/pfb/channelize.py b/gnuradio-examples/python/pfb/channelize.py index bc83fae273..27d87e558b 100755 --- a/gnuradio-examples/python/pfb/channelize.py +++ b/gnuradio-examples/python/pfb/channelize.py @@ -101,7 +101,7 @@ def main(): X,freq = mlab.psd(d, NFFT=fftlen, noverlap=fftlen/4, Fs=fs, window = lambda d: d*winfunc(fftlen), scale_by_freq=True) - X_in = 10.0*scipy.log10(abs(fftpack.fftshift(X))) + X_in = 10.0*scipy.log10(abs(X)) f_in = scipy.arange(-fs/2.0, fs/2.0, fs/float(X_in.size)) pin_f = spin_f.plot(f_in, X_in, "b") spin_f.set_xlim([min(f_in), max(f_in)+1]) @@ -144,7 +144,7 @@ def main(): X,freq = mlab.psd(d, NFFT=fftlen, noverlap=fftlen/4, Fs=fs_o, window = lambda d: d*winfunc(fftlen), scale_by_freq=True) - X_o = 10.0*scipy.log10(abs(fftpack.fftshift(X))) + X_o = 10.0*scipy.log10(abs(X)) f_o = scipy.arange(-fs_o/2.0, fs_o/2.0, fs_o/float(X_o.size)) p2_f = sp1_f.plot(f_o, X_o, "b") sp1_f.set_xlim([min(f_o), max(f_o)+1]) |