70 lines
2.3 KiB
Python
Executable File
70 lines
2.3 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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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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if __name__ == "__main__":
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argc = len(argv)
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if argc != 5:
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print
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print 'Usage: '+ argv[0] +' <ICAO> <Latitude> <Longtitude> <Altitude>'
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print
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print ' Example: '+ argv[0] +' 0xABCDEF 12.34 56.78 9999.0'
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print
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exit(2)
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icao = int(argv[1], 16)
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lat = float(argv[2])
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lon = float(argv[3])
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alt = float(argv[4])
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ca = 5 # Capability
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tc = 11 # Type Code see: https://adsb-decode-guide.readthedocs.io/en/latest/content/introduction.html#ads-b-message-types
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ss = 0 # Surveillance status
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nicsb = 0 # NIC supplement-B
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time = 0
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surface = False
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modes = ModeS()
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(df17_even, df17_odd) = modes.df17_pos_rep_encode(ca, icao, tc, ss, nicsb, alt, time, lat, lon, surface)
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#print ''.join(format(x, '02x') for x in df17_even)
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#print ''.join(format(x, '02x') for x in df17_odd)
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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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#OutFile = open("filename.bin", "wb")
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#OutFile.write(df17_array)
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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("Samples.iq8s", "wb") # TODO make this a function and take the file name. Also have the option to run dd on it.
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# TODO make it empty the file first.
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SamplesFile.write(samples_array)
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os.system("dd if=Samples.iq8s of=Samples_256K.iq8s bs=4k seek=63") # TODO make this a flag, also make it take the file name
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