diff options
| author | trondeau <trondeau@221aa14e-8319-0410-a670-987f0aec2ac5> | 2008-01-29 19:58:49 +0000 |
|---|---|---|
| committer | trondeau <trondeau@221aa14e-8319-0410-a670-987f0aec2ac5> | 2008-01-29 19:58:49 +0000 |
| commit | d25106c30ba0b169148ddaf98bb30dfd38012e03 (patch) | |
| tree | 1934fe5d02103f4ad91d076bb07594883a6ae261 /gnuradio-core | |
| parent | 1881514841bf270dfeaf7884233e2c88acbe0bd4 (diff) | |
Switched OFDM sync block to use peak detector from Kyle Jamieson. This solves one problem of locking up with low SNR but does not solve the big over-the-air problems.
git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@7523 221aa14e-8319-0410-a670-987f0aec2ac5
Diffstat (limited to 'gnuradio-core')
| -rw-r--r-- | gnuradio-core/src/python/gnuradio/blks2impl/ofdm_sync_pn.py | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/gnuradio-core/src/python/gnuradio/blks2impl/ofdm_sync_pn.py b/gnuradio-core/src/python/gnuradio/blks2impl/ofdm_sync_pn.py index e3e0ad9d25..0ec22ccedb 100644 --- a/gnuradio-core/src/python/gnuradio/blks2impl/ofdm_sync_pn.py +++ b/gnuradio-core/src/python/gnuradio/blks2impl/ofdm_sync_pn.py @@ -86,9 +86,9 @@ class ofdm_sync_pn(gr.hier_block2): self.sigmix = gr.multiply_cc() #ML measurements input to sampler block and detect - self.sub1 = gr.add_const_ff(-1) - self.pk_detect = gr.peak_detector_fb(0.20, 0.20, 30, 0.001) - #self.pk_detect = gr.peak_detector2_fb() + #self.sub1 = gr.add_const_ff(-1) + #self.pk_detect = gr.peak_detector_fb(0.20, 0.20, 30, 0.001) + self.pk_detect = gr.peak_detector2_fb(9) #self.pk_detect = gr.threshold_detector_fb(0.5) self.regen = gr.regenerate_bb(symbol_length) @@ -123,7 +123,8 @@ class ofdm_sync_pn(gr.hier_block2): self.matched_filter = gr.fir_filter_fff(1,matched_filter_taps) self.connect(self.normalize, self.matched_filter) - self.connect(self.matched_filter, self.sub1, self.pk_detect) + #self.connect(self.matched_filter, self.sub1, self.pk_detect) + self.connect(self.matched_filter, self.pk_detect) self.connect(self.pk_detect, self.regen) self.connect(self.regen, (self.sampler,1)) self.connect(self.pk_detect, (self.sample_and_hold,1)) |