diff options
author | Ben Reynwar <ben@reynwar.net> | 2013-06-04 10:59:29 -0700 |
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committer | Ben Reynwar <ben@reynwar.net> | 2013-06-04 11:55:00 -0700 |
commit | 48f3452530b29627ce57089b65363776dbe9a179 (patch) | |
tree | a2005c23b427415b9d86bcf256c49b3480f61427 /gr-utils/python/plot_psd_base.py | |
parent | ba0a9afedcd5451f2032004e9d583ed78d74ece2 (diff) |
uninstalled import: Updatings blocks, fec, uhd, and filter so that uninstalled import works with recent changes.
Diffstat (limited to 'gr-utils/python/plot_psd_base.py')
-rwxr-xr-x | gr-utils/python/plot_psd_base.py | 292 |
1 files changed, 0 insertions, 292 deletions
diff --git a/gr-utils/python/plot_psd_base.py b/gr-utils/python/plot_psd_base.py deleted file mode 100755 index fe3c9e12b7..0000000000 --- a/gr-utils/python/plot_psd_base.py +++ /dev/null @@ -1,292 +0,0 @@ -#!/usr/bin/env python -# -# Copyright 2007,2008,2010,2011 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. -# - -try: - import scipy - from scipy import fftpack -except ImportError: - print "Please install SciPy to run this script (http://www.scipy.org/)" - raise SystemExit, 1 - -try: - from pylab import * -except ImportError: - print "Please install Matplotlib to run this script (http://matplotlib.sourceforge.net/)" - raise SystemExit, 1 - -from optparse import OptionParser -from scipy import log10 -from gnuradio.eng_option import eng_option - -class plot_psd_base: - def __init__(self, datatype, filename, options): - self.hfile = open(filename, "r") - self.block_length = options.block - self.start = options.start - self.sample_rate = options.sample_rate - self.psdfftsize = options.psd_size - self.specfftsize = options.spec_size - - self.dospec = options.enable_spec # if we want to plot the spectrogram - - self.datatype = getattr(scipy, datatype) #scipy.complex64 - self.sizeof_data = self.datatype().nbytes # number of bytes per sample in file - - self.axis_font_size = 16 - self.label_font_size = 18 - self.title_font_size = 20 - self.text_size = 22 - - # Setup PLOT - self.fig = figure(1, figsize=(16, 12), facecolor='w') - rcParams['xtick.labelsize'] = self.axis_font_size - rcParams['ytick.labelsize'] = self.axis_font_size - - self.text_file = figtext(0.10, 0.95, ("File: %s" % filename), - weight="heavy", size=self.text_size) - self.text_file_pos = figtext(0.10, 0.92, "File Position: ", - weight="heavy", size=self.text_size) - self.text_block = figtext(0.35, 0.92, ("Block Size: %d" % self.block_length), - weight="heavy", size=self.text_size) - self.text_sr = figtext(0.60, 0.915, ("Sample Rate: %.2f" % self.sample_rate), - weight="heavy", size=self.text_size) - self.make_plots() - - self.button_left_axes = self.fig.add_axes([0.45, 0.01, 0.05, 0.05], frameon=True) - self.button_left = Button(self.button_left_axes, "<") - self.button_left_callback = self.button_left.on_clicked(self.button_left_click) - - self.button_right_axes = self.fig.add_axes([0.50, 0.01, 0.05, 0.05], frameon=True) - self.button_right = Button(self.button_right_axes, ">") - self.button_right_callback = self.button_right.on_clicked(self.button_right_click) - - self.xlim = scipy.array(self.sp_iq.get_xlim()) - - self.manager = get_current_fig_manager() - connect('draw_event', self.zoom) - connect('key_press_event', self.click) - show() - - def get_data(self): - self.position = self.hfile.tell()/self.sizeof_data - self.text_file_pos.set_text("File Position: %d" % self.position) - try: - self.iq = scipy.fromfile(self.hfile, dtype=self.datatype, count=self.block_length) - except MemoryError: - print "End of File" - return False - else: - # retesting length here as newer version of scipy does not throw a MemoryError, just - # returns a zero-length array - if(len(self.iq) > 0): - tstep = 1.0 / self.sample_rate - #self.time = scipy.array([tstep*(self.position + i) for i in xrange(len(self.iq))]) - self.time = scipy.array([tstep*(i) for i in xrange(len(self.iq))]) - - self.iq_psd, self.freq = self.dopsd(self.iq) - return True - else: - print "End of File" - return False - - def dopsd(self, iq): - ''' Need to do this here and plot later so we can do the fftshift ''' - overlap = self.psdfftsize/4 - winfunc = scipy.blackman - psd,freq = mlab.psd(iq, self.psdfftsize, self.sample_rate, - window = lambda d: d*winfunc(self.psdfftsize), - noverlap = overlap) - psd = 10.0*log10(abs(psd)) - return (psd, freq) - - def make_plots(self): - # if specified on the command-line, set file pointer - self.hfile.seek(self.sizeof_data*self.start, 1) - - iqdims = [[0.075, 0.2, 0.4, 0.6], [0.075, 0.55, 0.4, 0.3]] - psddims = [[0.575, 0.2, 0.4, 0.6], [0.575, 0.55, 0.4, 0.3]] - specdims = [0.2, 0.125, 0.6, 0.3] - - # Subplot for real and imaginary parts of signal - self.sp_iq = self.fig.add_subplot(2,2,1, position=iqdims[self.dospec]) - self.sp_iq.set_title(("I&Q"), fontsize=self.title_font_size, fontweight="bold") - self.sp_iq.set_xlabel("Time (s)", fontsize=self.label_font_size, fontweight="bold") - self.sp_iq.set_ylabel("Amplitude (V)", fontsize=self.label_font_size, fontweight="bold") - - # Subplot for PSD plot - self.sp_psd = self.fig.add_subplot(2,2,2, position=psddims[self.dospec]) - self.sp_psd.set_title(("PSD"), fontsize=self.title_font_size, fontweight="bold") - self.sp_psd.set_xlabel("Frequency (Hz)", fontsize=self.label_font_size, fontweight="bold") - self.sp_psd.set_ylabel("Power Spectrum (dBm)", fontsize=self.label_font_size, fontweight="bold") - - r = self.get_data() - - self.plot_iq = self.sp_iq.plot([], 'bo-') # make plot for reals - self.plot_iq += self.sp_iq.plot([], 'ro-') # make plot for imags - self.draw_time(self.time, self.iq) # draw the plot - - self.plot_psd = self.sp_psd.plot([], 'b') # make plot for PSD - self.draw_psd(self.freq, self.iq_psd) # draw the plot - - - if self.dospec: - # Subplot for spectrogram plot - self.sp_spec = self.fig.add_subplot(2,2,3, position=specdims) - self.sp_spec.set_title(("Spectrogram"), fontsize=self.title_font_size, fontweight="bold") - self.sp_spec.set_xlabel("Time (s)", fontsize=self.label_font_size, fontweight="bold") - self.sp_spec.set_ylabel("Frequency (Hz)", fontsize=self.label_font_size, fontweight="bold") - - self.draw_spec(self.time, self.iq) - - draw() - - def draw_time(self, t, iq): - reals = iq.real - imags = iq.imag - self.plot_iq[0].set_data([t, reals]) - self.plot_iq[1].set_data([t, imags]) - self.sp_iq.set_xlim(t.min(), t.max()) - self.sp_iq.set_ylim([1.5*min([reals.min(), imags.min()]), - 1.5*max([reals.max(), imags.max()])]) - - def draw_psd(self, f, p): - self.plot_psd[0].set_data([f, p]) - self.sp_psd.set_ylim([p.min()-10, p.max()+10]) - self.sp_psd.set_xlim([f.min(), f.max()]) - - def draw_spec(self, t, s): - overlap = self.specfftsize/4 - winfunc = scipy.blackman - self.sp_spec.clear() - self.sp_spec.specgram(s, self.specfftsize, self.sample_rate, - window = lambda d: d*winfunc(self.specfftsize), - noverlap = overlap, xextent=[t.min(), t.max()]) - - def update_plots(self): - self.draw_time(self.time, self.iq) - self.draw_psd(self.freq, self.iq_psd) - - if self.dospec: - self.draw_spec(self.time, self.iq) - - self.xlim = scipy.array(self.sp_iq.get_xlim()) # so zoom doesn't get called - - draw() - - def zoom(self, event): - newxlim = scipy.array(self.sp_iq.get_xlim()) - curxlim = scipy.array(self.xlim) - if(newxlim[0] != curxlim[0] or newxlim[1] != curxlim[1]): - #xmin = max(0, int(ceil(self.sample_rate*(newxlim[0] - self.position)))) - #xmax = min(int(ceil(self.sample_rate*(newxlim[1] - self.position))), len(self.iq)) - xmin = max(0, int(ceil(self.sample_rate*(newxlim[0])))) - xmax = min(int(ceil(self.sample_rate*(newxlim[1]))), len(self.iq)) - - iq = scipy.array(self.iq[xmin : xmax]) - time = scipy.array(self.time[xmin : xmax]) - - iq_psd, freq = self.dopsd(iq) - - self.draw_psd(freq, iq_psd) - self.xlim = scipy.array(self.sp_iq.get_xlim()) - - draw() - - def click(self, event): - forward_valid_keys = [" ", "down", "right"] - backward_valid_keys = ["up", "left"] - - if(find(event.key, forward_valid_keys)): - self.step_forward() - - elif(find(event.key, backward_valid_keys)): - self.step_backward() - - def button_left_click(self, event): - self.step_backward() - - def button_right_click(self, event): - self.step_forward() - - def step_forward(self): - r = self.get_data() - if(r): - self.update_plots() - - def step_backward(self): - # Step back in file position - if(self.hfile.tell() >= 2*self.sizeof_data*self.block_length ): - self.hfile.seek(-2*self.sizeof_data*self.block_length, 1) - else: - self.hfile.seek(-self.hfile.tell(),1) - r = self.get_data() - if(r): - self.update_plots() - - @staticmethod - def setup_options(): - usage="%prog: [options] input_filename" - description = "Takes a GNU Radio binary file (with specified data type using --data-type) and displays the I&Q data versus time as well as the power spectral density (PSD) plot. The y-axis values are plotted assuming volts as the amplitude of the I&Q streams and converted into dBm in the frequency domain (the 1/N power adjustment out of the FFT is performed internally). The script plots a certain block of data at a time, specified on the command line as -B or --block. The start position in the file can be set by specifying -s or --start and defaults to 0 (the start of the file). By default, the system assumes a sample rate of 1, so in time, each sample is plotted versus the sample number. To set a true time and frequency axis, set the sample rate (-R or --sample-rate) to the sample rate used when capturing the samples. Finally, the size of the FFT to use for the PSD and spectrogram plots can be set independently with --psd-size and --spec-size, respectively. The spectrogram plot does not display by default and is turned on with -S or --enable-spec." - - parser = OptionParser(option_class=eng_option, conflict_handler="resolve", - usage=usage, description=description) - parser.add_option("-d", "--data-type", type="string", default="complex64", - help="Specify the data type (complex64, float32, (u)int32, (u)int16, (u)int8) [default=%default]") - parser.add_option("-B", "--block", type="int", default=8192, - help="Specify the block size [default=%default]") - parser.add_option("-s", "--start", type="int", default=0, - help="Specify where to start in the file [default=%default]") - parser.add_option("-R", "--sample-rate", type="eng_float", default=1.0, - help="Set the sampler rate of the data [default=%default]") - parser.add_option("", "--psd-size", type="int", default=1024, - help="Set the size of the PSD FFT [default=%default]") - parser.add_option("", "--spec-size", type="int", default=256, - help="Set the size of the spectrogram FFT [default=%default]") - parser.add_option("-S", "--enable-spec", action="store_true", default=False, - help="Turn on plotting the spectrogram [default=%default]") - - return parser - -def find(item_in, list_search): - try: - return list_search.index(item_in) != None - except ValueError: - return False - -def main(): - parser = plot_psd_base.setup_options() - (options, args) = parser.parse_args () - if len(args) != 1: - parser.print_help() - raise SystemExit, 1 - filename = args[0] - - dc = plot_psd_base(options.data_type, filename, options) - -if __name__ == "__main__": - try: - main() - except KeyboardInterrupt: - pass - - - |