GNU Radio 3.6.3 C++ API
gr_fractional_interpolator_ff.h
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/* -*- c++ -*- */
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/*
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* Copyright 2004,2007 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_FRACTIONAL_INTERPOLATOR_FF_H
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#define INCLUDED_GR_FRACTIONAL_INTERPOLATOR_FF_H
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#include <
gr_core_api.h
>
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#include <
gr_block.h
>
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class
gri_mmse_fir_interpolator
;
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class
gr_fractional_interpolator_ff
;
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typedef
boost::shared_ptr<gr_fractional_interpolator_ff>
gr_fractional_interpolator_ff_sptr
;
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// public constructor
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GR_CORE_API
gr_fractional_interpolator_ff_sptr
gr_make_fractional_interpolator_ff
(
float
phase_shift,
float
interp_ratio
);
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/*!
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* \brief Interpolating mmse filter with float input, float output
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* \ingroup filter_blk
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*/
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class
GR_CORE_API
gr_fractional_interpolator_ff
:
public
gr_block
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{
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public
:
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~
gr_fractional_interpolator_ff
();
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void
forecast
(
int
noutput_items,
gr_vector_int
&ninput_items_required);
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int
general_work
(
int
noutput_items,
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gr_vector_int
&ninput_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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float
mu
()
const
{
return
d_mu;}
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float
interp_ratio
()
const
{
return
d_mu_inc;}
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void
set_mu
(
float
mu) { d_mu = mu; }
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void
set_interp_ratio
(
float
interp_ratio) { d_mu_inc = interp_ratio; }
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protected
:
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gr_fractional_interpolator_ff
(
float
phase_shift,
float
interp_ratio);
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private
:
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float
d_mu;
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float
d_mu_inc;
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gri_mmse_fir_interpolator
*d_interp;
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friend
GR_CORE_API
gr_fractional_interpolator_ff_sptr
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gr_make_fractional_interpolator_ff
(
float
phase_shift,
float
interp_ratio);
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};
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#endif
gnuradio
gnuradio-core
src
lib
filter
gr_fractional_interpolator_ff.h
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