diff options
Diffstat (limited to 'gr-uhd/apps/hf_radio/ssbagc.py')
-rw-r--r-- | gr-uhd/apps/hf_radio/ssbagc.py | 70 |
1 files changed, 0 insertions, 70 deletions
diff --git a/gr-uhd/apps/hf_radio/ssbagc.py b/gr-uhd/apps/hf_radio/ssbagc.py deleted file mode 100644 index 6a2e0a7cd..000000000 --- a/gr-uhd/apps/hf_radio/ssbagc.py +++ /dev/null @@ -1,70 +0,0 @@ -# Copyright 2011 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. - - -# post detection agc processing -# -# This agc strategy is copied more or less verbatim from -# weaver_isb_am1_usrp3.py by cswiger. -# -# Thanks. -# -# Then modified in a variety of ways. -# -# There doesn't appear to be a way to hook multiple blocks to the -# input port when building a hier block like this. Thus the -# split below. -# -# Basic operation. -# Power is estimated by squaring the input. -# Low pass filter using a 1 pole iir. -# The time constant can be tweaked by changing the taps. -# Currently there is no implementation to change this while operating -# a potentially useful addition. -# The log block turns this into dB -# gain adjusts the agc authority. -# -# M. Revnell 2006-Jan - -from gnuradio import gr - -class agc( gr.hier_block2 ): - def __init__( self ): - gr.hier_block2.__init__(self, "agc", - gr.io_signature(1,1,gr.sizeof_float), - gr.io_signature(1,1,gr.sizeof_float)) - - self.split = gr.multiply_const_ff( 1 ) - self.sqr = gr.multiply_ff( ) - self.int0 = gr.iir_filter_ffd( [.004, 0], [0, .999] ) - self.offs = gr.add_const_ff( -30 ) - self.gain = gr.multiply_const_ff( 70 ) - self.log = gr.nlog10_ff( 10, 1 ) - self.agc = gr.divide_ff( ) - - self.connect(self, self.split) - self.connect(self.split, (self.agc, 0)) - self.connect(self.split, (self.sqr, 0)) - self.connect(self.split, (self.sqr, 1)) - self.connect(self.sqr, self.int0) - self.connect(self.int0, self.log) - self.connect(self.log, self.offs) - self.connect(self.offs, self.gain) - self.connect(self.gain, (self.agc, 1)) - self.connect(self.agc, self) |