diff options
Diffstat (limited to 'gr-utils/plot_tools/plot_fft_base.py')
| -rw-r--r-- | gr-utils/plot_tools/plot_fft_base.py | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/gr-utils/plot_tools/plot_fft_base.py b/gr-utils/plot_tools/plot_fft_base.py index 9cfb0f2ec4..9fa3611e14 100644 --- a/gr-utils/plot_tools/plot_fft_base.py +++ b/gr-utils/plot_tools/plot_fft_base.py @@ -10,7 +10,6 @@ import numpy -from numpy.fft import fftpack try: from pylab import Button, connect, draw, figure, figtext, get_current_fig_manager, show, rcParams, ceil @@ -85,7 +84,7 @@ class plot_fft_base(object): def dofft(self, iq): N = len(iq) - iq_fft = numpy.fft.fftshift(fftpack.fft(iq)) # fft and shift axis + iq_fft = numpy.fft.fftshift(numpy.fft.fft(iq)) # fft and shift axis iq_fft = 20*numpy.log10(abs((iq_fft+1e-15) / N)) # convert to decibels, adjust power # adding 1e-15 (-300 dB) to protect against value errors if an item in iq_fft is 0 return iq_fft |