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| author | n4hy | 2008-10-01 20:42:43 +0000 |
|---|---|---|
| committer | n4hy | 2008-10-01 20:42:43 +0000 |
| commit | 5bfda44b8d4093c81779c05c98f3bbd310f198df (patch) | |
| tree | 0f32d55fa026e9d26aad1210afa5117f5237d141 /gnuradio-core | |
| parent | d9b0663b0170c7f5958df900ce68f15ea2b0434f (diff) | |
| download | gnuradio-5bfda44b8d4093c81779c05c98f3bbd310f198df.tar.gz gnuradio-5bfda44b8d4093c81779c05c98f3bbd310f198df.tar.bz2 gnuradio-5bfda44b8d4093c81779c05c98f3bbd310f198df.zip | |
pll bandwidth optimized to more nearly meet Carson's rule. The 19 kHz pilot recovery will soon be replace by polyphase channelizer trick
git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@9694 221aa14e-8319-0410-a670-987f0aec2ac5
Diffstat (limited to 'gnuradio-core')
| -rw-r--r-- | gnuradio-core/src/python/gnuradio/blks2impl/wfm_rcv_pll.py | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/gnuradio-core/src/python/gnuradio/blks2impl/wfm_rcv_pll.py b/gnuradio-core/src/python/gnuradio/blks2impl/wfm_rcv_pll.py index e49544c8e..bc68a9f3f 100644 --- a/gnuradio-core/src/python/gnuradio/blks2impl/wfm_rcv_pll.py +++ b/gnuradio-core/src/python/gnuradio/blks2impl/wfm_rcv_pll.py @@ -39,7 +39,7 @@ class wfm_rcv_pll(gr.hier_block2): gr.hier_block2.__init__(self, "wfm_rcv_pll", gr.io_signature(1, 1, gr.sizeof_gr_complex), # Input signature gr.io_signature(1, 2, gr.sizeof_float)) # Output signature - bandwidth = 180e3 + bandwidth = 250e3 audio_rate = demod_rate / audio_decimation @@ -49,7 +49,7 @@ class wfm_rcv_pll(gr.hier_block2): # input: complex; output: float alpha = 0.25*bandwidth * math.pi / demod_rate beta = alpha * alpha / 4.0 - max_freq = 2.0*math.pi*100e3/demod_rate + max_freq = 2.0*math.pi*90e3/demod_rate self.fm_demod = gr.pll_freqdet_cf (alpha,beta,max_freq,-max_freq) |