Imported Upstream version 3.2.2

[debian/gnuradio] / gnuradio-core / src / python / gnuradio / blksimpl / fm_demod.py

diff --git a/gnuradio-core/src/python/gnuradio/blksimpl/fm_demod.py b/gnuradio-core/src/python/gnuradio/blksimpl/fm_demod.py
deleted file mode 100644 (file)
index 344d84d..0000000
--- a/gnuradio-core/src/python/gnuradio/blksimpl/fm_demod.py
+++ /dev/null
@@ -1,122 +0,0 @@
-#
-# Copyright 2006 Free Software Foundation, Inc.
-# 
-# This file is part of GNU Radio
-# 
-# GNU Radio is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 3, or (at your option)
-# any later version.
-# 
-# GNU Radio is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-# 
-# You should have received a copy of the GNU General Public License
-# along with GNU Radio; see the file COPYING.  If not, write to
-# the Free Software Foundation, Inc., 51 Franklin Street,
-# Boston, MA 02110-1301, USA.
-# 
-
-from gnuradio import gr, optfir
-from gnuradio.blksimpl.fm_emph import fm_deemph
-from math import pi
-
-class fm_demod_cf(gr.hier_block):
-    """
-    Generalized FM demodulation block with deemphasis and audio 
-    filtering.
-
-    This block demodulates a band-limited, complex down-converted FM 
-    channel into the the original baseband signal, optionally applying
-    deemphasis. Low pass filtering is done on the resultant signal. It
-    produces an output float strem in the range of [-1.0, +1.0].
-
-    @param fg: flowgraph
-    @param channel_rate:  incoming sample rate of the FM baseband
-    @type sample_rate: integer
-    @param deviation: maximum FM deviation (default = 5000)
-    @type deviation: float
-    @param audio_decim: input to output decimation rate
-    @type audio_decim: integer
-    @param audio_pass: audio low pass filter passband frequency 
-    @type audio_pass: float
-    @param audio_stop: audio low pass filter stop frequency
-    @type audio_stop: float
-    @param gain: gain applied to audio output (default = 1.0)
-    @type gain: float
-    @param tau: deemphasis time constant (default = 75e-6), specify 'None'
-       to prevent deemphasis
-    """ 
-    def __init__(self, fg, channel_rate, audio_decim, deviation, 
-                 audio_pass, audio_stop, gain=1.0, tau=75e-6):
-
-        """    
-       # Equalizer for ~100 us delay
-       delay = 100e-6
-       num_taps = int(channel_rate*delay)
-
-       mu = 1e-4/num_taps
-       print "CMA: delay =", delay, "n =", num_taps, "mu =", mu
-       CMA = gr.cma_equalizer_cc(num_taps, 1.0, mu)
-        """    
-       k = channel_rate/(2*pi*deviation)
-       QUAD = gr.quadrature_demod_cf(k)
-
-       audio_taps = optfir.low_pass(gain,         # Filter gain
-                                    channel_rate, # Sample rate
-                                    audio_pass,   # Audio passband
-                                    audio_stop,   # Audio stopband
-                                    0.1,          # Passband ripple
-                                    60)           # Stopband attenuation
-       LPF = gr.fir_filter_fff(audio_decim, audio_taps)
-
-       if tau is not None:
-           DEEMPH = fm_deemph(fg, channel_rate, tau)
-           fg.connect(QUAD, DEEMPH, LPF)
-        else:
-            fg.connect(QUAD, LPF)
-
-        gr.hier_block.__init__(self, fg, QUAD, LPF)
-
-class demod_20k0f3e_cf(fm_demod_cf):
-    """
-    NBFM demodulation block, 20 KHz channels
-
-    This block demodulates a complex, downconverted, narrowband FM 
-    channel conforming to 20K0F3E emission standards, outputting
-    floats in the range [-1.0, +1.0].
-    
-    @param fg: flowgraph
-    @param sample_rate:  incoming sample rate of the FM baseband
-    @type sample_rate: integer
-    @param audio_decim: input to output decimation rate
-    @type audio_decim: integer
-    """ 
-    def __init__(self, fg, channel_rate, audio_decim):
-        fm_demod_cf.__init__(self, fg, channel_rate, audio_decim,
-                             5000,     # Deviation
-                             3000,     # Audio passband frequency
-                             4000)     # Audio stopband frequency
-
-class demod_200kf3e_cf(fm_demod_cf):
-    """
-    WFM demodulation block, mono.
-    
-    This block demodulates a complex, downconverted, wideband FM 
-    channel conforming to 200KF3E emission standards, outputting 
-    floats in the range [-1.0, +1.0].
-
-    @param fg: flowgraph
-    @param sample_rate:  incoming sample rate of the FM baseband
-    @type sample_rate: integer
-    @param audio_decim: input to output decimation rate
-    @type audio_decim: integer
-    """
-    def __init__(self, fg, channel_rate, audio_decim): 
-       fm_demod_cf.__init__(self, fg, channel_rate, audio_decim,
-                            75000,     # Deviation
-                            15000,     # Audio passband
-                            16000,     # Audio stopband
-                            20.0)      # Audio gain