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correlate_access_code_ff_ts.h
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/* -*- c++ -*- */
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/*
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* Copyright 2014 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_DIGITAL_CORRELATE_ACCESS_CODE_FF_TS_H
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#define INCLUDED_DIGITAL_CORRELATE_ACCESS_CODE_FF_TS_H
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#include <
gnuradio/digital/api.h
>
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#include <
gnuradio/block.h
>
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#include <string>
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namespace
gr {
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namespace
digital {
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/*!
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* \brief Examine input for specified access code, one bit at a time.
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* \ingroup packet_operators_blk
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*
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* \details
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* input: stream of floats (generally, soft decisions)
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* output: unaltered stream of floats in a tagged stream
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*
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* This block searches for the given access code by slicing the
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* soft decision symbol inputs. Once found, it expects the
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* following 32 samples to contain a header that includes the
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* frame length. It decodes the header to get the frame length in
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* order to set up the the tagged stream key information.
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*
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* The output of this block is appropriate for use with tagged
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* stream blocks.
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*/
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class
DIGITAL_API
correlate_access_code_ff_ts
:
virtual
public
block
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{
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public
:
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// gr::digital::correlate_access_code_ff_ts::sptr
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typedef
boost::shared_ptr<correlate_access_code_ff_ts>
sptr
;
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/*!
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* \param access_code is represented with 1 byte per bit,
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* e.g., "010101010111000100"
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* \param threshold maximum number of bits that may be wrong
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* \param tag_name key of the tag inserted into the tag stream
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*/
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static
sptr
make(
const
std::string &access_code,
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int
threshold,
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const
std::string &tag_name);
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/*!
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* \param access_code is represented with 1 byte per bit,
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* e.g., "010101010111000100"
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*/
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virtual
bool
set_access_code(
const
std::string &access_code) = 0;
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virtual
unsigned
long
long
access_code()
const
= 0;
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};
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}
/* namespace digital */
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}
/* namespace gr */
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#endif
/* INCLUDED_DIGITAL_CORRELATE_ACCESS_CODE_FF_TS_H */
gr-digital
include
gnuradio
digital
correlate_access_code_ff_ts.h
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