diff options
author | Piotr Krysik <ptrkrysik@gmail.com> | 2016-02-13 18:37:32 +0100 |
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committer | Piotr Krysik <ptrkrysik@gmail.com> | 2016-02-13 18:37:32 +0100 |
commit | 332e0b5c6bd8112e1cecc1079db0a1ab6dbba3ca (patch) | |
tree | f81928f8524d9047627927b8d0c34988f60afefc /apps/helpers | |
parent | 3e192c4fbeaa8bfc4516f832bc6019006b886c82 (diff) |
Changes of names of applications
-removed 'airprobe' from names completely,
-removed '.py' from names,
-moved programs that don't use gr-gsm blocks to the 'apps/helpers' directory.
Diffstat (limited to 'apps/helpers')
-rwxr-xr-x | apps/helpers/grgsm_capture.py | 271 | ||||
-rwxr-xr-x | apps/helpers/grgsm_channelize.py | 150 |
2 files changed, 421 insertions, 0 deletions
diff --git a/apps/helpers/grgsm_capture.py b/apps/helpers/grgsm_capture.py new file mode 100755 index 0000000..98696f4 --- /dev/null +++ b/apps/helpers/grgsm_capture.py @@ -0,0 +1,271 @@ +#!/usr/bin/env python +# -*- coding: utf-8 -*- +# @file +# @author Roman Khassraf <rkhassraf@gmail.com> +# @section LICENSE +# +# Gr-gsm 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. +# +# Gr-gsm 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 gr-gsm; see the file COPYING. If not, write to +# the Free Software Foundation, Inc., 51 Franklin Street, +# Boston, MA 02110-1301, USA. +# +# + +from gnuradio import blocks +from gnuradio import eng_notation +from gnuradio import gr +from gnuradio.eng_option import eng_option +from gnuradio.filter import firdes +from math import pi +from optparse import OptionParser + +import grgsm +import osmosdr +import pmt +import signal +import sys + + +class grgsm_capture(gr.top_block): + + def __init__(self, fc, gain, samp_rate, ppm, arfcn, cfile=None, burst_file=None, band=None, verbose=False, rec_length=None): + + gr.top_block.__init__(self, "Gr-gsm Capture") + + ################################################## + # Parameters + ################################################## + self.fc = fc + self.gain = gain + self.samp_rate = samp_rate + self.ppm = ppm + self.arfcn = arfcn + self.cfile = cfile + self.burst_file = burst_file + self.band = band + self.verbose = verbose + self.shiftoff = shiftoff = 400e3 + self.rec_length = rec_length + + ################################################## + # Processing Blocks + ################################################## + + self.rtlsdr_source = osmosdr.source( args="numchan=" + str(1) + " " + "" ) + self.rtlsdr_source.set_sample_rate(samp_rate) + self.rtlsdr_source.set_center_freq(fc - shiftoff, 0) + self.rtlsdr_source.set_freq_corr(ppm, 0) + self.rtlsdr_source.set_dc_offset_mode(2, 0) + self.rtlsdr_source.set_iq_balance_mode(2, 0) + self.rtlsdr_source.set_gain_mode(True, 0) + self.rtlsdr_source.set_gain(gain, 0) + self.rtlsdr_source.set_if_gain(20, 0) + self.rtlsdr_source.set_bb_gain(20, 0) + self.rtlsdr_source.set_antenna("", 0) + self.rtlsdr_source.set_bandwidth(250e3+abs(shiftoff), 0) + self.blocks_rotator = blocks.rotator_cc(-2*pi*shiftoff/samp_rate) + + if self.rec_length is not None: + self.blocks_head_0 = blocks.head(gr.sizeof_gr_complex, int(samp_rate*rec_length)) + + if self.verbose or self.burst_file: + self.gsm_receiver = grgsm.receiver(4, ([self.arfcn]), ([])) + self.gsm_input = grgsm.gsm_input( + ppm=0, + osr=4, + fc=fc, + samp_rate_in=samp_rate, + ) + self.gsm_clock_offset_control = grgsm.clock_offset_control(fc-shiftoff) + + if self.burst_file: + self.gsm_burst_file_sink = grgsm.burst_file_sink(self.burst_file) + + if self.cfile: + self.blocks_file_sink = blocks.file_sink(gr.sizeof_gr_complex*1, self.cfile, False) + self.blocks_file_sink.set_unbuffered(False) + + if self.verbose: + self.gsm_bursts_printer_0 = grgsm.bursts_printer(pmt.intern(""), + False, False, False, False) + + ################################################## + # Connections + ################################################## + + if self.rec_length is not None: #if recording length is defined connect head block after the source + self.connect((self.rtlsdr_source, 0), (self.blocks_head_0, 0)) + self.connect((self.blocks_head_0, 0), (self.blocks_rotator, 0)) + else: + self.connect((self.rtlsdr_source, 0), (self.blocks_rotator, 0)) + + if self.cfile: + self.connect((self.blocks_rotator, 0), (self.blocks_file_sink, 0)) + + if self.verbose or self.burst_file: + self.connect((self.gsm_input, 0), (self.gsm_receiver, 0)) + self.connect((self.blocks_rotator, 0), (self.gsm_input, 0)) + self.msg_connect(self.gsm_clock_offset_control, "ppm", self.gsm_input, "ppm_in") + self.msg_connect(self.gsm_receiver, "measurements", self.gsm_clock_offset_control, "measurements") + + if self.burst_file: + self.msg_connect(self.gsm_receiver, "C0", self.gsm_burst_file_sink, "in") + if self.verbose: + self.msg_connect(self.gsm_receiver, "C0", self.gsm_bursts_printer_0, "bursts") + + def get_fc(self): + return self.fc + + def set_fc(self, fc): + self.fc = fc + if self.verbose or self.burst_file: + self.gsm_input.set_fc(self.fc) + + def get_arfcn(self): + return self.arfcn + + def set_arfcn(self, arfcn): + self.arfcn = arfcn + if self.verbose or self.burst_file: + self.gsm_receiver.set_cell_allocation([self.arfcn]) + if options.band: + new_freq = grgsm.arfcn.arfcn2downlink(self.arfcn, self.band) + else: + for band in grgsm.arfcn.get_bands(): + if grgsm.arfcn.is_valid_arfcn(arfcn, band): + new_freq = grgsm.arfcn.arfcn2downlink(arfcn, band) + break + self.set_fc(new_freq) + + def get_gain(self): + return self.gain + + def set_gain(self, gain): + self.gain = gain + + def get_samp_rate(self): + return self.samp_rate + + def set_samp_rate(self, samp_rate): + self.samp_rate = samp_rate + self.rtlsdr_source.set_sample_rate(self.samp_rate) + if self.verbose or self.burst_file: + self.gsm_input.set_samp_rate_in(self.samp_rate) + + def get_ppm(self): + return self.ppm + + def set_ppm(self, ppm): + self.ppm = ppm + self.set_ppm_slider(self.ppm) + + def get_rec_length(self): + return self.rec_length + + def set_rec_length(self, rec_length): + self.rec_length = rec_length + self.blocks_head_0.set_length(int(self.samp_rate*self.rec_length)) + + +if __name__ == '__main__': + + parser = OptionParser(option_class=eng_option, usage="%prog [options]", + description="RTL-SDR capturing app of gr-gsm.") + + parser.add_option("-f", "--fc", dest="fc", type="eng_float", + help="Set frequency [default=%default]") + + parser.add_option("-a", "--arfcn", dest="arfcn", type="intx", + help="Set ARFCN instead of frequency. In some cases you may have to provide the GSM band also") + + parser.add_option("-g", "--gain", dest="gain", type="eng_float", + default=eng_notation.num_to_str(30), + help="Set gain [default=%default]") + + parser.add_option("-s", "--samp-rate", dest="samp_rate", type="eng_float", + default=eng_notation.num_to_str(2000000.052982), + help="Set samp_rate [default=%default]") + + parser.add_option("-p", "--ppm", dest="ppm", type="intx", default=0, + help="Set ppm [default=%default]") + + parser.add_option("-b", "--burst-file", dest="burst_file", + help="File where the captured bursts are saved") + + parser.add_option("-c", "--cfile", dest="cfile", + help="File where the captured data are saved") + + bands_list = ", ".join(grgsm.arfcn.get_bands()) + parser.add_option("--band", dest="band", + help="Specify the GSM band for the frequency.\nAvailable bands are: " + bands_list + ".\nIf no band is specified, it will be determined automatically, defaulting to 0." ) + + parser.add_option("-v", "--verbose", action="store_true", + help="If set, the captured bursts are printed to stdout") + + parser.add_option("-T", "--rec-length", dest="rec_length", type="eng_float", + help="Set length of recording in seconds [default=%default]") + + (options, args) = parser.parse_args() + + if options.cfile is None and options.burst_file is None: + parser.error("Please provide a cfile or a burst file (or both) to save the captured data\n") + + if (options.fc is None and options.arfcn is None) or (options.fc is not None and options.arfcn is not None): + parser.error("You have to provide either a frequency or an ARFCN (but not both).\n") + + arfcn = 0 + fc = 939.4e6 + if options.arfcn: + if options.band: + if options.band not in grgsm.arfcn.get_bands(): + parser.error("Invalid GSM band\n") + elif not grgsm.arfcn.is_valid_arfcn(options.arfcn, options.band): + parser.error("ARFCN is not valid in the specified band\n") + else: + arfcn = options.arfcn + fc = grgsm.arfcn.arfcn2downlink(arfcn, options.band) + else: + arfcn = options.arfcn + for band in grgsm.arfcn.get_bands(): + if grgsm.arfcn.is_valid_arfcn(arfcn, band): + fc = grgsm.arfcn.arfcn2downlink(arfcn, band) + break + elif options.fc: + fc = options.fc + if options.band: + if options.band not in grgsm.arfcn.get_bands(): + parser.error("Invalid GSM band\n") + elif not grgsm.arfcn.is_valid_downlink(options.fc, options.band): + parser.error("Frequency is not valid in the specified band\n") + else: + arfcn = grgsm.arfcn.downlink2arfcn(options.fc, options.band) + else: + for band in grgsm.arfcn.get_bands(): + if grgsm.arfcn.is_valid_downlink(options.fc, band): + arfcn = grgsm.arfcn.downlink2arfcn(options.fc, band) + break + + tb = grgsm_capture(fc=fc, gain=options.gain, samp_rate=options.samp_rate, + ppm=options.ppm, arfcn=arfcn, cfile=options.cfile, + burst_file=options.burst_file, band=options.band, verbose=options.verbose, + rec_length=options.rec_length) + + def signal_handler(signal, frame): + tb.stop() + tb.wait() + sys.exit(0) + + signal.signal(signal.SIGINT, signal_handler) + + tb.start() + tb.wait() diff --git a/apps/helpers/grgsm_channelize.py b/apps/helpers/grgsm_channelize.py new file mode 100755 index 0000000..4098b7b --- /dev/null +++ b/apps/helpers/grgsm_channelize.py @@ -0,0 +1,150 @@ +#!/usr/bin/env python2 +# -*- coding: utf-8 -*- +# @file +# @author Pieter Robyns <pieter.robyns@uhasselt.be> +# @section LICENSE +# +# Gr-gsm 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. +# +# Gr-gsm 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 gr-gsm; see the file COPYING. If not, write to +# the Free Software Foundation, Inc., 51 Franklin Street, +# Boston, MA 02110-1301, USA. +# +# + +################################################## +# gr-gsm channelizer +# +# Standalone application to channelize a wideband +# GSM capture file into multiple seperate capture +# files for the specified ARFCNs. +################################################## + +from gnuradio import blocks +from gnuradio import eng_notation +from gnuradio import filter +from gnuradio import gr +from gnuradio.eng_option import eng_option +from gnuradio.filter import firdes +from argparse import ArgumentParser, ArgumentTypeError, RawDescriptionHelpFormatter +import grgsm.arfcn as arfcn +import os + +EXTRA_HELP = """ +Example usage: +gsm_channelize.py -f my_wideband_capture.cfile -c 925.2e6 990 991 992 993 994 995 1019 1020 1021 1022 1023 + +The above example will channelize my_wideband_capture.cfile, in this case a cfile captured at +925.2 MHz centered (ARFCN 975) and 20 Msps. As a result, 12 files will be generated for +ARFCNs 975 - 1023 at 1 Msps each. +""" + +def eng_float(value): + try: + return eng_notation.str_to_num(value) + except: + raise ArgumentTypeError("invalid engineering notation value: {0}".format(value)) + +def gsm_band(value): + choices = arfcn.get_bands() + if value in choices: + return value + else: + raise ArgumentTypeError("invalid GSM band: {0}. Possible choices are: {1}".format(value, choices)) + +class gsm_channelize(gr.top_block): + def __init__(self, channels, decim, ch_width, ch_twidth, fc, band, samp_rate, path): + gr.top_block.__init__(self, "gsm_channelize") + + ################################################## + # Parameters + ################################################## + self.channels = channels + self.decim = decim + self.ch_width = ch_width + self.ch_twidth = ch_twidth + self.fc = fc + self.band = band + self.samp_rate = samp_rate + self.blocks_fir_filters = {} + self.blocks_file_sinks = {} + + ################################################## + # Blocks and connections + ################################################## + self.blocks_file_source = blocks.file_source(gr.sizeof_gr_complex, path, False) + + c0_arfcn = arfcn.downlink2arfcn(fc, band) + self.channels.insert(0, c0_arfcn) + print("Extracting channels %s, given that the center frequency is at ARFCN %d (%s)" % (str(channels), c0_arfcn, eng_notation.num_to_str(fc))) + + for channel in channels: + channel_freq = arfcn.arfcn2downlink(channel, band) + if channel_freq is None: + print("Warning: invalid ARFCN %d for band %s" % (channel, band)) + continue + freq_diff = channel_freq - fc + print("ARFCN %d is at C0 %+d KHz" % (channel, int(freq_diff / 1000.0))) + + self.blocks_fir_filters[channel] = filter.freq_xlating_fir_filter_ccc(decim, (firdes.low_pass(1, samp_rate, ch_width, ch_twidth)), freq_diff, samp_rate) + self.connect((self.blocks_file_source, 0), (self.blocks_fir_filters[channel], 0)) + + self.blocks_file_sinks[channel] = blocks.file_sink(gr.sizeof_gr_complex, "./gsm_channelizer/out_" + str(channel) + ".cfile", False) + self.blocks_file_sinks[channel].set_unbuffered(False) + self.connect((self.blocks_fir_filters[channel], 0), (self.blocks_file_sinks[channel], 0)) + + +if __name__ == '__main__': + parser = ArgumentParser(formatter_class=RawDescriptionHelpFormatter, description='Split wideband a GSM capture into seperate files per ARFCN.', epilog=EXTRA_HELP) + parser.add_argument(dest="channel", type=int, nargs='+', + help="List of ARFCNs") + parser.add_argument("-w", "--width", dest="width", type=eng_float, default=eng_notation.num_to_str(200000), + help="Channel lowpass width [default=%(default)s]") + parser.add_argument("-t", "--transition-width", dest="twidth", type=eng_float, default=eng_notation.num_to_str(50000), + help="Channel lowpass transition width [default=%(default)s]") + parser.add_argument("-s", "--samp-rate", dest="samp_rate", type=eng_float, default=eng_notation.num_to_str(2e7), + help="Sample rate of the wideband capture file [default=%(default)s]") + parser.add_argument("-o", "--out-samp-rate", dest="out_samp_rate", type=eng_float, default=eng_notation.num_to_str(1e6), + help="Sample rate of the output capture files [default=%(default)s]") + parser.add_argument("-b", "--band", dest="band", type=gsm_band, default='E-GSM', + help="GSM band [default=%(default)s]") + parser.add_argument("-f", "--cfile", dest="path", type=str, required=True, + help="Path to wideband GSM capture file") + parser.add_argument("-c", "--C0", dest="fc", type=eng_float, default=eng_notation.num_to_str(925.2e6), required=True, + help="C0 (BCCH) channel frequency in Hz [default=%(default)s]") + args = parser.parse_args() + + if not os.path.exists("./gsm_channelizer"): + os.makedirs("./gsm_channelizer") + + if not os.path.exists(args.path): + raise IOError(args.path + " does not exist") + + if args.samp_rate % args.out_samp_rate != 0: + raise Exception("Input sample rate should be multiple of output sample rate in order to get integer decimation.") + + decim = int(args.samp_rate / args.out_samp_rate) + print("Input sample rate: " + eng_notation.num_to_str(args.samp_rate)) + print("Output sample rate: " + eng_notation.num_to_str(args.out_samp_rate)) + print("==> using decimation of " + str(decim)) + + tb = gsm_channelize(channels=args.channel, + decim=decim, + ch_width=args.width, + ch_twidth=args.twidth, + fc=args.fc, + band=args.band, + samp_rate=args.samp_rate, + path=args.path) + tb.start() + tb.wait() + print("Done!") |