65 lines
4.1 KiB
Python
Executable File
65 lines
4.1 KiB
Python
Executable File
#!/usr/bin/env python
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#
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from HackRF import HackRF
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from PPM import PPM
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from ModeS import ModeS
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from sys import argv, exit
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from optparse import OptionParser
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import os
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###############################################################
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# Copyright (C) 2017 Linar Yusupov
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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###############################################################
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# Further work on fork
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# Copyright (C) 2017 David Robinson
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def optionParser():
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usage = 'usage: %prog [options]'
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parser = OptionParser(usage=usage)
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parser.add_option('-i', '--icao', action='store', type='int', dest='icao', default='0xABCDEF', help='The ICAO number for the plane in hex. Ensure the ICAO is prefixed with \'0x\' to ensure this is parsed as a hex number. Default: %default')
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parser.add_option('--lat', '--latitude', action='store', type='float', dest='latitude', default='12.34', help='Latitude for the plane in decminal degrees. Default: %default')
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parser.add_option('--lon', '--long', '--longitude', action='store', type='float', dest='longitude', default='56.78', help='Longitude for the place in decminal degrees. Default: %default')
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parser.add_option('-a', '--alt', '--altitude', action='store', type='float', dest='altitude', default='9876.5', help='Altitude in decminal feet. Default: %default')
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parser.add_option('--ca', '--capability', action='store', type='int', dest='capability', default=5, help='The capability. (Think this is always 5 from ADSB messages. More info would be appreciate). Default: %default')
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parser.add_option('--tc', '--typecode', action='store', type='int', dest='typecode', default=11, help='The type for the ADSB messsage. See https://adsb-decode-guide.readthedocs.io/en/latest/content/introduction.html#ads-b-message-types for more information. Default: %default')
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parser.add_option('--ss', '--surveillancestatus', action='store', type='int', dest='surveillancestatus', default=0, help='The surveillance status. (Think this is always 0 from ADSB messages. More info would be appreciate). Default: %default')
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parser.add_option('--nicsb', '--nicsupplementb', action='store', type='int', dest='nicsupplementb', default=0, help='The NIC supplement-B.(Think this is always 0 from ADSB messages. More info would be appreciate). Default: %default')
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parser.add_option('--time', action='store', type='int', dest='time', default=0, help='The time. (Think this is always 0 from ADSB messages. More info would be appreciate). Default: %default')
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parser.add_option('-s', '--surface', action='store', default=False, dest='surface', help='If the plane is on the ground or not. Default: %default')
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parser.add_option('-o', '--out', '--output', action='store', type='string', default='Samples_256K.iq8s', dest='outputfilename', help='The iq8s output filename. This is the file which you will feed into the hackRF. Default: %default')
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return parser.parse_args()
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if __name__ == "__main__":
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options, arguments = optionParser()
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print options
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modes = ModeS()
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(df17_even, df17_odd) = modes.df17_pos_rep_encode(options.capability, options.icao, options.typecode, options.surveillancestatus, options.nicsupplementb, options.altitude, options.time, options.latitude, options.longitude, options.surface)
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ppm = PPM()
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df17_array = ppm.frame_1090es_ppm_modulate(df17_even, df17_odd)
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hackrf = HackRF()
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samples_array = hackrf.hackrf_raw_IQ_format(df17_array)
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SamplesFile = open('tmp.iq8s', 'wb')
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SamplesFile.write(samples_array)
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os.system("dd if=tmp.iq8s of=%s bs=4k seek=63" % (options.outputfilename))
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os.system('rm tmp.iq8s')
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