From f1c41f807cb29472d0924149e39d6ec8ad90e6a2 Mon Sep 17 00:00:00 2001
From: eb <eb@221aa14e-8319-0410-a670-987f0aec2ac5>
Date: Wed, 27 Sep 2006 05:14:03 +0000
Subject: Merged changes from eb/digital-wip into trunk.
This includes:
* renaming gnuradio-examples/python/gmsk2 to gnuradio-examples/python/digital
* refactoring the digital data tx and rx test code into benchmark_tx
and benchmark_rx. These accept a -m <modulation> argument.
<modulation> can currently be selected from gmsk, dbpsk, dqpsk
* Two new AGC blocks: gr_agc2: separate attack and delay rates;
gr_feedforward_agc: FIR-ish compressor. Normalizes to peak envelope.
* Working DBPSK mod/demod (works fine)
* Working DQPSK mod/demod (works, but still needs more work)
git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@3662 221aa14e-8319-0410-a670-987f0aec2ac5
---
gnuradio-examples/python/gmsk2/gmsk_test.py | 115 ----------------------------
1 file changed, 115 deletions(-)
delete mode 100755 gnuradio-examples/python/gmsk2/gmsk_test.py
(limited to 'gnuradio-examples/python/gmsk2/gmsk_test.py')
diff --git a/gnuradio-examples/python/gmsk2/gmsk_test.py b/gnuradio-examples/python/gmsk2/gmsk_test.py
deleted file mode 100755
index 7ae69a0a94..0000000000
--- a/gnuradio-examples/python/gmsk2/gmsk_test.py
+++ /dev/null
@@ -1,115 +0,0 @@
-#!/usr/bin/env python
-
-from gnuradio import gr, blks
-from gnuradio.eng_option import eng_option
-from optparse import OptionParser
-import random
-import struct
-
-#import os
-#print os.getpid()
-#raw_input('Attach and press enter')
-
-
-class my_graph(gr.flow_graph):
-
- def __init__(self, rx_callback, spb, bt, SNR, freq_error):
- gr.flow_graph.__init__(self)
-
- fg = self
-
- # Tuning Parameters
- gain_mu = 0.002*spb
- omega = spb*(1+freq_error)
-
- # transmitter
- self.packet_transmitter = blks.gmsk2_mod_pkts(fg, spb=spb, bt=bt)
-
- # add some noise
- add = gr.add_cc()
- noise = gr.noise_source_c(gr.GR_GAUSSIAN, pow(10.0,-SNR/20.0))
-
- # channel filter
- rx_filt_taps = gr.firdes.low_pass(1,spb,0.8,0.1,gr.firdes.WIN_HANN)
- rx_filt = gr.fir_filter_ccf(1,rx_filt_taps)
-
- # receiver
- self.packet_receiver = blks.gmsk2_demod_pkts(fg, callback=rx_callback,
- spb=spb, gain_mu=gain_mu,
- freq_error=freq_error, omega=omega)
-
- fg.connect (self.packet_transmitter, (add,0))
- fg.connect (noise, (add,1))
- fg.connect(add, rx_filt, self.packet_receiver)
-
-
-class stats(object):
- def __init__(self):
- self.npkts = 0
- self.nright = 0
-
-def main():
- st = stats()
-
- def send_pkt(payload='', eof=False):
- fg.packet_transmitter.send_pkt(payload, eof)
-
- def rx_callback(ok, payload):
- st.npkts += 1
- if ok:
- st.nright += 1
- if len(payload) <= 16:
- print "ok = %5r payload = '%s' %d/%d" % (ok, payload, st.nright, st.npkts)
- else:
- (pktno,) = struct.unpack('!H', payload[0:2])
- print "ok = %5r pktno = %4d len(payload) = %4d %d/%d" % (ok, pktno, len(payload),
- st.nright, st.npkts)
-
-
- parser = OptionParser (option_class=eng_option)
- parser.add_option("-M", "--megabytes", type="eng_float", default=1,
- help="set megabytes to transmit [default=%default]")
- parser.add_option("-s", "--size", type="eng_float", default=1500,
- help="set packet size [default=%default]")
- parser.add_option("","--spb", type=int, default=4,
- help="set samples per baud to SPB [default=%default]")
- parser.add_option("", "--bt", type="eng_float", default=0.3,
- help="set bandwidth time product for Gaussian filter [default=%default]")
- parser.add_option("", "--snr", type="eng_float", default=20,
- help="set SNR in dB for simulation [default=%default]")
- parser.add_option("", "--freq-error", type="eng_float", default=0,
- help="set frequency error for simulation [default=%default]")
- (options, args) = parser.parse_args ()
-
- if len(args) != 0:
- parser.print_help()
- sys.exit(1)
-
- pkt_size = int(options.size)
-
- fg = my_graph(rx_callback, options.spb, options.bt, options.snr, options.freq_error)
- fg.start()
-
- nbytes = int(1e6 * options.megabytes)
- n = 0
- pktno = 0
-
- send_pkt('Hello World')
-
- # generate and send packets
- while n < nbytes:
- send_pkt(struct.pack('!H', pktno) + (pkt_size - 2) * chr(pktno & 0xff))
- n += pkt_size
- pktno += 1
-
- send_pkt('Goodbye World')
- send_pkt(eof=True) # tell modulator we're not sending any more pkts
-
- fg.wait()
-
-
-if __name__ == '__main__':
- try:
- main()
- except KeyboardInterrupt:
- pass
--
cgit v1.2.3