Author: trondeau
Date: 2007-06-01 18:28:16 -0600 (Fri, 01 Jun 2007)
New Revision: 5601
Modified:
gnuradio/branches/features/ofdm/receiver/gnuradio-core/src/python/gnuradio/blksimpl/ofdm_receiver.py
gnuradio/branches/features/ofdm/receiver/gnuradio-examples/python/ofdm/benchmark_ofdm.py
gnuradio/branches/features/ofdm/receiver/gnuradio-examples/python/ofdm/receive_path.py
Log:
added channel filter and noise, remove some logging. OFDM working with noise
and fine frequency offset; has an initial transient problem.
Modified:
gnuradio/branches/features/ofdm/receiver/gnuradio-core/src/python/gnuradio/blksimpl/ofdm_receiver.py
===================================================================
---
gnuradio/branches/features/ofdm/receiver/gnuradio-core/src/python/gnuradio/blksimpl/ofdm_receiver.py
2007-06-01 23:44:20 UTC (rev 5600)
+++
gnuradio/branches/features/ofdm/receiver/gnuradio-core/src/python/gnuradio/blksimpl/ofdm_receiver.py
2007-06-02 00:28:16 UTC (rev 5601)
@@ -80,14 +80,6 @@
self.fg.connect(self.c2mag,(self.diff,0))
self.fg.connect(self.moving_sum_filter,(self.diff,1))
-
- self.fg.connect(self.input, gr.file_sink(gr.sizeof_gr_complex,
"input.dat"))
- self.fg.connect(self.delay, gr.file_sink(gr.sizeof_gr_complex,
"g.dat"))
- self.fg.connect(self.conjg, gr.file_sink(gr.sizeof_gr_complex,
"g1.dat"))
- self.fg.connect(self.mixer, gr.file_sink(gr.sizeof_gr_complex,
"k.dat"))
- self.fg.connect(self.movingsum2, gr.file_sink(gr.sizeof_gr_complex,
"h.dat"))
-
-
#ML measurements input to sampler block and detect
nco_sensitivity = 1.0/fft_length
self.f2c = gr.float_to_complex()
Modified:
gnuradio/branches/features/ofdm/receiver/gnuradio-examples/python/ofdm/benchmark_ofdm.py
===================================================================
---
gnuradio/branches/features/ofdm/receiver/gnuradio-examples/python/ofdm/benchmark_ofdm.py
2007-06-01 23:44:20 UTC (rev 5600)
+++
gnuradio/branches/features/ofdm/receiver/gnuradio-examples/python/ofdm/benchmark_ofdm.py
2007-06-02 00:28:16 UTC (rev 5601)
@@ -70,7 +70,7 @@
power_in_signal = 1
noise_power_in_channel = power_in_signal/SNR
noise_voltage = math.sqrt(noise_power_in_channel/2.0)
- noise_voltage=0.0
+ #noise_voltage=0.0
print "Power in signal: ", power_in_signal
print "Noise power in channel: ", noise_power_in_channel
print "Noise voltage: ", noise_voltage
Modified:
gnuradio/branches/features/ofdm/receiver/gnuradio-examples/python/ofdm/receive_path.py
===================================================================
---
gnuradio/branches/features/ofdm/receiver/gnuradio-examples/python/ofdm/receive_path.py
2007-06-01 23:44:20 UTC (rev 5600)
+++
gnuradio/branches/features/ofdm/receiver/gnuradio-examples/python/ofdm/receive_path.py
2007-06-02 00:28:16 UTC (rev 5601)
@@ -43,7 +43,7 @@
self._log = options.log
self._rx_callback = rx_callback # this callback is fired when
there's a packet available
- if 0:
+ if 1:
bw = (float(options.occupied_tones) / float(options.fft_length)) /
2.0
tb = bw*0.08
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