GNU Radio 3.6.5.1 C++ API
gr_filter_delay_fc.h
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/* -*- c++ -*- */
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/*
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* Copyright 2004 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_FILTER_DELAY_FC_H
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#define INCLUDED_GR_FILTER_DELAY_FC_H
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#include <
gr_core_api.h
>
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#include <
gr_sync_block.h
>
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#include <
gr_io_signature.h
>
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#include <
gr_types.h
>
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class
gr_filter_delay_fc
;
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typedef
boost::shared_ptr<gr_filter_delay_fc>
gr_filter_delay_fc_sptr
;
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// public constructor
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GR_CORE_API
gr_filter_delay_fc_sptr
gr_make_filter_delay_fc
(
const
std::vector<float> &
taps
);
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class
gr_fir_fff;
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/*!
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* \brief Filter-Delay Combination Block.
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*
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* The block takes one or two float stream and outputs a complex
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* stream. If only one float stream is input, the real output is
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* a delayed version of this input and the imaginary output is the
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* filtered output. If two floats are connected to the input, then
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* the real output is the delayed version of the first input, and
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* the imaginary output is the filtered output. The delay in the
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* real path accounts for the group delay introduced by the filter
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* in the imaginary path. The filter taps needs to be calculated
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* before initializing this block.
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*
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*/
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class
GR_CORE_API
gr_filter_delay_fc
:
public
gr_sync_block
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{
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public
:
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~
gr_filter_delay_fc
();
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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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protected
:
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gr_filter_delay_fc
(
const
std::vector<float> &
taps
);
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private
:
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unsigned
int
d_delay;
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gr_fir_fff *d_fir;
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friend
GR_CORE_API
gr_filter_delay_fc_sptr
gr_make_filter_delay_fc
(
const
std::vector<float> &taps);
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};
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#endif
/* INCLUDED_GR_FILTER_DELAY_FC_H */
gnuradio-core
src
lib
filter
gr_filter_delay_fc.h
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