From 42c1bfdc72b29f18c5a750a07959d4cc760411b4 Mon Sep 17 00:00:00 2001
From: jcorgan <jcorgan@221aa14e-8319-0410-a670-987f0aec2ac5>
Date: Tue, 4 Sep 2007 13:21:24 +0000
Subject: Cleanup on gnuradio-examples restructuring.
git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@6287 221aa14e-8319-0410-a670-987f0aec2ac5
---
.../python/digital/limbo/qpsk_tester.py | 127 ---------------------
1 file changed, 127 deletions(-)
delete mode 100644 gnuradio-examples/python/digital/limbo/qpsk_tester.py
(limited to 'gnuradio-examples/python/digital/limbo/qpsk_tester.py')
diff --git a/gnuradio-examples/python/digital/limbo/qpsk_tester.py b/gnuradio-examples/python/digital/limbo/qpsk_tester.py
deleted file mode 100644
index ea7bae2ebc..0000000000
--- a/gnuradio-examples/python/digital/limbo/qpsk_tester.py
+++ /dev/null
@@ -1,127 +0,0 @@
-#!/usr/bin/env python
-
-import random
-from gnuradio import gr
-
-default_access_code = '\xAC\xDD\xA4\xE2\xF2\x8C\x20\xFC'
-
-def string_to_1_0_list(s):
- r = []
- for ch in s:
- x = ord(ch)
- for i in range(8):
- t = (x >> i) & 0x1
- r.append(t)
-
- return r
-
-def to_1_0_string(L):
- return ''.join(map(lambda x: chr(x + ord('0')), L))
-
-code = string_to_1_0_list(default_access_code)
-access_code = to_1_0_string(code)
-
-use_agc = 0
-use_rrc_tx = 1
-use_rrc_rx = 1
-use_sync_loop = 1
-use_clock_sync = 1
-
-def main():
- fg = gr.flow_graph()
-
-# data = (1,2,3,4,5,6,7,8,9)
- random.seed()
- data = [random.randint(1,100) for i in range(20000)]
- data[0] = 0 # you know, for the diff encoding stuff
- bytes_src = gr.vector_source_b(data,False)
-
- k = 2
- spb = 50
- ntaps = 11*spb
- excess_bw = 0.9
- threshold = 12
- constellation = (1+0j, 0+1j, -1+0j, 0-1j)
-
- bytes2chunks = gr.packed_to_unpacked_bb(k, gr.GR_MSB_FIRST)
- diffenc = gr.diff_encoder_bb(4)
- chunks2symbols = gr.chunks_to_symbols_bc(constellation)
-
- if use_rrc_tx:
- rrc_taps_tx = gr.firdes.root_raised_cosine(spb, spb, 1.0, \
- excess_bw, ntaps)
- rrc_tx = gr.interp_fir_filter_ccf(spb, rrc_taps_tx)
- else:
- rrc_tx = gr.interp_fir_filter_ccf(1, (1,))
-
-################### CHANNEL MODEL #############################
-
- phase_rotate = gr.multiply_const_cc(1-0.36j)
- channel = gr.add_cc()
- awgn = gr.noise_source_c(gr.GR_GAUSSIAN, 0.5)
- fg.connect(awgn, (channel,1))
-
-################### CHANNEL MODEL #############################
-
- if use_agc:
- agc = gr.agc_cc(1e-4, 1, 1)
- else:
- agc = gr.multiply_const_cc(1)
-
- # Downconverter
- if use_sync_loop:
- costas_alpha=0.005
- beta = costas_alpha*costas_alpha*0.25
- sync_loop = gr.costas_loop_cc(costas_alpha, beta, 0.05, -0.05, 0)
- else:
- sync_loop = gr.multiply_const_cc(1)
-
- if use_rrc_rx:
- rrc_taps_rx = gr.firdes.root_raised_cosine(1, spb, 1.0, \
- excess_bw, ntaps)
- rrc_rx = gr.fir_filter_ccf(1, rrc_taps_rx)
- else:
- rrc_rx = gr.fir_filter_ccf(1, (1,))
-
- # Sampler
- if use_clock_sync:
- mu = 0.05
- omega = spb
- gain_mu = 0.05
- gain_omega = 0.25*gain_mu*gain_mu
- omega_rel_limit = 0.5
- clock_sync = gr.clock_recovery_mm_cc(omega, gain_omega, mu, \
- gain_mu, omega_rel_limit)
- #clock_sync.set_verbose(True);
- else:
- clock_sync = gr.fir_filter_ccf(1, (1,))
-
- diff_phasor = gr.diff_phasor_cc()
- slicer = gr.constellation_decoder_cb((constellation), (0,1,2,3))
- unpack = gr.unpack_k_bits_bb(k)
- access = gr.correlate_access_code_bb(access_code,threshold)
-
- sink = gr.file_sink(gr.sizeof_char, 'output.dat')
-
- fg.connect(bytes_src, bytes2chunks, diffenc, chunks2symbols, rrc_tx)
- fg.connect(rrc_tx, phase_rotate, channel, agc)
- fg.connect(agc, sync_loop, rrc_rx, clock_sync, diff_phasor, slicer, sink)
-
- test = gr.file_sink(gr.sizeof_gr_complex, 'test.dat')
- fg.connect(rrc_rx, test)
-
- fg.connect(chunks2symbols, gr.file_sink(gr.sizeof_gr_complex, 'rrc_tx.dat')) # into TX RRC
- fg.connect(channel, gr.file_sink(gr.sizeof_gr_complex, 'channel.dat')) # Out of TX RRC
- fg.connect(rrc_rx, gr.file_sink(gr.sizeof_gr_complex, 'rrc_rx.dat')) # Out of RX RRC -> clock_sync
- fg.connect(clock_sync, gr.file_sink(gr.sizeof_gr_complex, 'clock_sync.dat')) # Out of M&M sync loop
- fg.connect(bytes2chunks, gr.file_sink(gr.sizeof_char, 'source.dat'))
-
- fg.start()
- fg.wait()
-
-if __name__ == "__main__":
- main()
-
-
-
-
--
cgit v1.2.3