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#!/usr/bin/env python
#
# Copyright 2012,2013 Free Software Foundation, Inc.
#
# This file is part of GNU Radio
#
# GNU Radio is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3, or (at your option)
# any later version.
#
# GNU Radio is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with GNU Radio; see the file COPYING. If not, write to
# the Free Software Foundation, Inc., 51 Franklin Street,
# Boston, MA 02110-1301, USA.
#
from gnuradio import gr
from gnuradio import filter
import scipy
try:
import gnuradio.qtgui.plot_spectrogram_base as plot_base
except ImportError:
import plot_spectrogram_base as plot_base
try:
from gnuradio import qtgui
from PyQt4 import QtGui, QtCore
import sip
except ImportError:
print "Error: Program requires PyQt4 and gr-qtgui."
sys.exit(1)
class spectrogram_plot_c(plot_base.plot_base):
def __init__(self, filelist, fc, samp_rate, psdsize, start,
nsamples, max_nsamples, avg=1.0):
plot_base.plot_base.__init__(self, filelist, fc, samp_rate,
psdsize, start, nsamples,
max_nsamples, avg)
self.read_samples = plot_base.read_samples_c
self.dsize = gr.sizeof_gr_complex
self.src_type = gr.vector_source_c
self.gui_snk = qtgui.waterfall_sink_c(self._psd_size, filter.firdes.WIN_BLACKMAN_hARRIS,
self._center_freq, self._samp_rate,
"GNU Radio Spectrogram Plot", self._nsigs)
self.setup()
def main():
description = "Plots the spectrogram (waterfall) of a list of files. Files are a binary list of complex floats."
(options, args) = plot_base.setup_options(description)
filelist = list(args)
max_nsamples = plot_base.find_max_nsamples(filelist)
tb = spectrogram_plot_c(filelist,
options.center_frequency, options.sample_rate,
options.psd_size,
options.start, options.nsamples, max_nsamples,
options.average);
main_box = plot_base.plot_spectrogram_form(tb, 'GNU Radio Spectrogram Plot')
main_box.show()
tb.run()
tb.qapp.exec_()
if __name__ == "__main__":
try:
main()
except KeyboardInterrupt:
pass
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