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#!/usr/bin/env python
#
# Copyright 2007 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 2, 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.radar_mono import radar
from gnuradio import eng_notation
from gnuradio.eng_option import eng_option
from optparse import OptionParser
import sys
n2s = eng_notation.num_to_str
def main():
parser = OptionParser(option_class=eng_option)
parser.add_option("-f", "--frequency", type="eng_float", default=0.0,
help="set transmitter center frequency to FREQ in Hz, default is %default", metavar="FREQ")
parser.add_option("-w", "--chirp-width", type="eng_float", default=32e6,
help="set LFM chirp bandwidth in Hz, default is %default", metavar="FREQ")
parser.add_option("-a", "--amplitude", type="eng_float", default=100,
help="set waveform amplitude in % full scale, default is %default,")
parser.add_option("", "--ton", type="eng_float", default=5e-6,
help="set pulse on period in seconds, default is %default,")
parser.add_option("", "--tsw", type="eng_float", default=406.25e-9,
help="set transmitter switching period in seconds, default is %default,")
parser.add_option("", "--tlook", type="eng_float", default=5e-6,
help="set receiver look time in seconds, default is %default,")
parser.add_option("", "--prf", type="eng_float", default=10e3,
help="set pulse repetition frequency in Hz, default is %default,")
parser.add_option("-v", "--verbose", action="store_true", default=False,
help="enable verbose output, default is disabled")
parser.add_option("-D", "--debug", action="store_true", default=False,
help="enable debugging output, default is disabled")
# NOT IMPLEMENTED
#parser.add_option("-g", "--gain", type="eng_float", default=None,
# help="set gain in dB (default is midpoint)")
#parser.add_option("-l", "--loopback", action="store_true", default=False,
# help="enable digital loopback, default is disabled")
#parser.add_option("-F", "--filename", default=None,
# help="log received echos to file")
(options, args) = parser.parse_args()
if len(args) != 0:
parser.print_help()
sys.exit(1)
"""
if options.filename == None:
print "Must supply filename for logging received data."
sys.exit(1)
else:
if options.verbose:
print "Logging echo records to file: ", options.filename
"""
msgq = gr.msg_queue()
s = radar(msgq=msgq,verbose=options.verbose,debug=options.debug)
s.set_ton(options.ton)
s.set_tsw(options.tsw)
s.set_tlook(options.tlook)
s.set_prf(options.prf)
s.set_amplitude(options.amplitude)
s.set_freq(options.frequency, options.chirp_width)
s.start()
"""
f = open(options.filename, "wb")
print "Enter CTRL-C to stop."
try:
while (1):
msg = msgq.delete_head()
if msg.type() == 1:
break
rec = msg.to_string()
if options.debug:
print "Received echo vector of length", len(rec)
f.write(rec)
except KeyboardInterrupt:
pass
"""
raw_input("Press enter to stop transmitting.")
s.stop()
if __name__ == "__main__":
main()
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