GNU Radio C++ API
gr_adaptive_fir_ccc.h
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/* -*- c++ -*- */
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/*
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* Copyright 2011 Free Software Foundation, Inc.
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*
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* This file is part of GNU Radio
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*
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* GNU Radio is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3, or (at your option)
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* any later version.
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*
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* GNU Radio is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with GNU Radio; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street,
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* Boston, MA 02110-1301, USA.
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*/
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#ifndef INCLUDED_GR_ADAPTIVE_FIR_CCC_H
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#define INCLUDED_GR_ADAPTIVE_FIR_CCC_H
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#include <
gr_core_api.h
>
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#include <
gr_sync_decimator.h
>
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/*!
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* \brief Adaptive FIR filter with gr_complex input, gr_complex output and float taps
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* \ingroup filter_blk
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*/
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class
GR_CORE_API
gr_adaptive_fir_ccc
:
public
gr_sync_decimator
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{
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private
:
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std::vector<gr_complex> d_new_taps;
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bool
d_updated;
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protected
:
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gr_complex
d_error
;
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std::vector<gr_complex>
d_taps
;
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// Override to calculate error signal per output
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virtual
gr_complex
error(
const
gr_complex
&out) = 0;
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// Override to calculate new weight from old, corresponding input
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virtual
void
update_tap(
gr_complex
&tap,
const
gr_complex
&in) = 0;
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gr_complex
filter(
gr_complex
*x);
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gr_adaptive_fir_ccc
(
const
char
*name,
int
decimation,
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const
std::vector<gr_complex> &
taps
);
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public
:
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void
set_taps(
const
std::vector<gr_complex> &
taps
);
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int
work
(
int
noutput_items,
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gr_vector_const_void_star
&input_items,
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gr_vector_void_star
&output_items);
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};
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#endif
gnuradio-core
src
lib
filter
gr_adaptive_fir_ccc.h
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