GNU Radio 3.6.4.1 C++ API
gr_hilbert_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_HILBERT_FC_H
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#define INCLUDED_GR_HILBERT_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_hilbert_fc
;
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typedef
boost::shared_ptr<gr_hilbert_fc>
gr_hilbert_fc_sptr
;
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// public constructor
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GR_CORE_API
gr_hilbert_fc_sptr
gr_make_hilbert_fc
(
unsigned
int
ntaps);
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class
gr_fir_fff
;
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/*!
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* \brief Hilbert transformer.
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* \ingroup filter_blk
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*
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* real output is input appropriately delayed.
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* imaginary output is hilbert filtered (90 degree phase shift)
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* version of input.
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*/
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class
GR_CORE_API
gr_hilbert_fc
:
public
gr_sync_block
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{
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public
:
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~
gr_hilbert_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_hilbert_fc
(
unsigned
int
ntaps);
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private
:
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unsigned
int
d_ntaps;
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gr_fir_fff
*d_hilb;
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friend
GR_CORE_API
gr_hilbert_fc_sptr
gr_make_hilbert_fc
(
unsigned
int
ntaps);
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};
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#endif
/* INCLUDED_GR_HILBERT_FC_H */
gnuradio-core
src
lib
filter
gr_hilbert_fc.h
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