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[Commit-gnuradio] r8508 - gnuradio/trunk/gnuradio-core/src/python/gnurad
From: |
eb |
Subject: |
[Commit-gnuradio] r8508 - gnuradio/trunk/gnuradio-core/src/python/gnuradio/blks2impl |
Date: |
Mon, 26 May 2008 07:30:41 -0600 (MDT) |
Author: eb
Date: 2008-05-26 07:30:41 -0600 (Mon, 26 May 2008)
New Revision: 8508
Modified:
gnuradio/trunk/gnuradio-core/src/python/gnuradio/blks2impl/channel_model.py
Log:
channel_model.py now allows to set the random seed for the noise
source via __init__ and adds a function to set the timing
offset. (Patch from Andreas M?\195?\188ller.)
Modified:
gnuradio/trunk/gnuradio-core/src/python/gnuradio/blks2impl/channel_model.py
===================================================================
--- gnuradio/trunk/gnuradio-core/src/python/gnuradio/blks2impl/channel_model.py
2008-05-26 05:37:03 UTC (rev 8507)
+++ gnuradio/trunk/gnuradio-core/src/python/gnuradio/blks2impl/channel_model.py
2008-05-26 13:30:41 UTC (rev 8508)
@@ -23,7 +23,7 @@
from gnuradio import gr
class channel_model(gr.hier_block2):
- def __init__(self, noise_voltage=0.0, frequency_offset=0.0, epsilon=1.0,
taps=[1.0,0.0]):
+ def __init__(self, noise_voltage=0.0, frequency_offset=0.0, epsilon=1.0,
taps=[1.0,0.0], noise_seed=3021):
''' Creates a channel model that includes:
- AWGN noise power in terms of noise voltage
- A frequency offest in the channel in ratio
@@ -40,7 +40,7 @@
self.multipath = gr.fir_filter_ccc(1, taps)
self.noise_adder = gr.add_cc()
- self.noise = gr.noise_source_c(gr.GR_GAUSSIAN,noise_voltage)
+ self.noise = gr.noise_source_c(gr.GR_GAUSSIAN, noise_voltage,
noise_seed)
self.freq_offset = gr.sig_source_c(1, gr.GR_SIN_WAVE,
frequency_offset, 1.0, 0.0)
self.mixer_offset = gr.multiply_cc()
@@ -60,3 +60,6 @@
def set_taps(self, taps):
self.multipath.set_taps(taps)
+
+ def set_timing_offset(self, epsilon):
+ self.timing_offset.set_interp_ratio(epsilon)
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