From 434c113106e0f18b08392e32829015ffdd866513 Mon Sep 17 00:00:00 2001 From: Tom Rondeau Date: Thu, 15 Apr 2010 00:34:05 -0400 Subject: [PATCH] New matplotlib does the fftshift for us when doing mlab.psd. This makes the figures make sense again. --- gnuradio-examples/python/pfb/channelize.py | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/gnuradio-examples/python/pfb/channelize.py b/gnuradio-examples/python/pfb/channelize.py index bc83fae2..27d87e55 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]) -- 2.39.5