GNU Radio Manual and C++ API Reference
3.9.1.0
The Free & Open Software Radio Ecosystem
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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* SPDX-License-Identifier: GPL-3.0-or-later
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*
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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/block.h
>
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#include <
gnuradio/digital/api.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: a tagged stream set of samples from the payload following
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* the access code and header.
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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 (16 bits for the length, repeated). It decodes the
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* header to get the frame length in order to set up the the
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* 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
std::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
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make(
const
std::string& access_code,
int
threshold,
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 */
block.h
gr::digital::correlate_access_code_ff_ts::sptr
std::shared_ptr< correlate_access_code_ff_ts > sptr
Definition:
correlate_access_code_ff_ts.h:44
gr::digital::correlate_access_code_ff_ts
Examine input for specified access code, one bit at a time.
Definition:
correlate_access_code_ff_ts.h:40
DIGITAL_API
#define DIGITAL_API
Definition:
gr-digital/include/gnuradio/digital/api.h:18
gr::block
The abstract base class for all 'terminal' processing blocks.
Definition:
block.h:59
api.h
gr
GNU Radio logging wrapper for log4cpp library (C++ port of log4j)
Definition:
basic_block.h:29
gr-digital
include
gnuradio
digital
correlate_access_code_ff_ts.h
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