GNU Radio 3.7.1-34 C++ API
GrAtscSegSymSyncImpl.h
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/* -*- c++ -*- */
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/*
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* Copyright 2002 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 _GRATSCSEGSYMSYNCIMPL_H_
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#define _GRATSCSEGSYMSYNCIMPL_H_
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#include <
GrAtscSegSymSync.h
>
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#include <
gnuradio/atsc/sssr_impl.h
>
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/*!
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* \brief concrete implementation of GrAtscSegSymSync
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*
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* This class implements data segment sync tracking and symbol timing
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* using a variation of the method described in
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* "ATSC/VSB Tutorial - Receiver Technology" by Wayne E. Bretl of
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* Zenith, pgs 41-45.
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*/
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class
GrAtscSegSymSyncImpl
:
public
GrAtscSegSymSync
{
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atsci_sssr
d_sssr;
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atsci_interpolator
d_interp;
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VrSampleIndex d_next_input;
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double
d_rx_clock_to_symbol_freq;
// nominal ratio
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public
:
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// the standard methods...
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GrAtscSegSymSyncImpl
(
double
nominal_ratio_of_rx_clock_to_symbol_freq);
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virtual
~GrAtscSegSymSyncImpl
();
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virtual
const
char
*
name
() {
return
"GrAtscSegSymSyncImpl"
; }
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virtual
int
forecast
(VrSampleRange output,
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VrSampleRange inputs[]);
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virtual
int
work
(VrSampleRange output,
void
*o[],
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VrSampleRange inputs[],
void
*i[]);
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void
pre_initialize
();
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// reset on channel change
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virtual
void
reset
();
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};
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#endif
/* _GRATSCSEGSYMSYNCIMPL_H_ */
gnuradio
gr-atsc
include
gnuradio
atsc
GrAtscSegSymSyncImpl.h
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