add ads-b transmission script without GUI requirement
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#!/usr/bin/env python
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##################################################
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# Gnuradio Python Flow Graph
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# Title: Top Block
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# Generated: Thu Apr 2 20:42:21 2015
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##################################################
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from gnuradio import blocks
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from gnuradio import eng_notation
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from gnuradio import gr
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from gnuradio import uhd
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from gnuradio.eng_option import eng_option
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from gnuradio.filter import firdes
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from optparse import OptionParser
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import adsbtx
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import time
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import wx
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class top_block(gr.top_block):
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def __init__(self):
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gr.top_block.__init__(self)
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##################################################
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# Variables
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##################################################
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self.samp_rate = samp_rate = 4000000
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##################################################
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# Blocks
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##################################################
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self.uhd_usrp_sink_0 = uhd.usrp_sink(
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",".join(("", "")),
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uhd.stream_args(
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cpu_format="fc32",
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channels=range(1),
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),
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"packet_len",
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)
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self.uhd_usrp_sink_0.set_subdev_spec("A:A", 0)
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self.uhd_usrp_sink_0.set_samp_rate(samp_rate)
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self.uhd_usrp_sink_0.set_center_freq(1090000000, 0)
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self.uhd_usrp_sink_0.set_gain(33, 0)
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self.blocks_tagged_stream_multiply_length_0 = blocks.tagged_stream_multiply_length(gr.sizeof_gr_complex*1, "packet_len", 2)
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self.blocks_socket_pdu_0 = blocks.socket_pdu("TCP_SERVER", "", "52002", 10000, False)
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self.blocks_repeat_0 = blocks.repeat(gr.sizeof_char*1, 2)
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self.blocks_pdu_to_tagged_stream_0 = blocks.pdu_to_tagged_stream(blocks.byte_t, "packet_len")
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self.blocks_float_to_complex_0 = blocks.float_to_complex(1)
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self.blocks_char_to_float_0 = blocks.char_to_float(1, 1.25)
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self.AdsbEncoder_0 = adsbtx.AdsbEncoder(200)
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##################################################
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# Connections
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##################################################
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self.connect((self.blocks_char_to_float_0, 0), (self.blocks_float_to_complex_0, 0))
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self.connect((self.blocks_repeat_0, 0), (self.blocks_char_to_float_0, 0))
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self.connect((self.blocks_float_to_complex_0, 0), (self.blocks_tagged_stream_multiply_length_0, 0))
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self.connect((self.blocks_tagged_stream_multiply_length_0, 0), (self.uhd_usrp_sink_0, 0))
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self.connect((self.blocks_pdu_to_tagged_stream_0, 0), (self.blocks_repeat_0, 0))
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##################################################
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# Asynch Message Connections
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##################################################
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self.msg_connect(self.AdsbEncoder_0, "pdus", self.blocks_pdu_to_tagged_stream_0, "pdus")
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self.msg_connect(self.blocks_socket_pdu_0, "pdus", self.AdsbEncoder_0, "pdus")
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def get_samp_rate(self):
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return self.samp_rate
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def set_samp_rate(self, samp_rate):
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self.samp_rate = samp_rate
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self.uhd_usrp_sink_0.set_samp_rate(self.samp_rate)
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if __name__ == '__main__':
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parser = OptionParser(option_class=eng_option, usage="%prog: [options]")
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(options, args) = parser.parse_args()
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tb = top_block()
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tb.start()
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raw_input('Press Enter to quit: ')
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tb.stop()
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