GNU Radio Manual and C++ API Reference 3.7.14.0
The Free & Open Software Radio Ecosystem
correlate_access_code_tag_ff.h
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1/* -*- c++ -*- */
2/*
3 * Copyright 2005,2006,2011,2012,2017 Free Software Foundation, Inc.
4 *
5 * This file is part of GNU Radio
6 *
7 * GNU Radio is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
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10 * any later version.
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21 */
22
23#ifndef INCLUDED_DIGITAL_CORRELATE_ACCESS_CODE_TAG_FF_H
24#define INCLUDED_DIGITAL_CORRELATE_ACCESS_CODE_TAG_FF_H
25
27#include <gnuradio/sync_block.h>
28#include <string>
29
30namespace gr {
31namespace digital {
32
33/*!
34 * \brief Examine input for specified access code, one bit at a time.
35 * \ingroup packet_operators_blk
36 *
37 * \details
38 * input: stream of floats (generally, soft decisions)
39 * output: unaltered stream of bits (plus tags)
40 *
41 * This block annotates the input stream with tags. The tags have
42 * key name [tag_name], specified in the constructor. Used for
43 * searching an input data stream for preambles, etc., by slicing
44 * the soft decision symbol inputs.
45 */
47{
48public:
49 // gr::digital::correlate_access_code_tag_ff::sptr
50 typedef boost::shared_ptr<correlate_access_code_tag_ff> sptr;
51
52 /*!
53 * \param access_code is represented with 1 byte per bit,
54 * e.g., "010101010111000100"
55 * \param threshold maximum number of bits that may be wrong
56 * \param tag_name key of the tag inserted into the tag stream
57 */
58 static sptr
59 make(const std::string& access_code, int threshold, const std::string& tag_name);
60
61 /*!
62 * \param access_code is represented with 1 byte per bit,
63 * e.g., "010101010111000100"
64 */
65 virtual bool set_access_code(const std::string& access_code) = 0;
66 virtual void set_threshold(int threshold) = 0;
67 virtual void set_tagname(const std::string& tagname) = 0;
68};
69
70} /* namespace digital */
71} /* namespace gr */
72
73#endif /* INCLUDED_DIGITAL_CORRELATE_ACCESS_CODE_TAG_FF_H */
Examine input for specified access code, one bit at a time.
Definition: correlate_access_code_tag_ff.h:47
static sptr make(const std::string &access_code, int threshold, const std::string &tag_name)
virtual void set_tagname(const std::string &tagname)=0
boost::shared_ptr< correlate_access_code_tag_ff > sptr
Definition: correlate_access_code_tag_ff.h:50
virtual bool set_access_code(const std::string &access_code)=0
virtual void set_threshold(int threshold)=0
synchronous 1:1 input to output with history
Definition: sync_block.h:38
#define DIGITAL_API
Definition: gr-digital/include/gnuradio/digital/api.h:30
Include this header to use the message passing features.
Definition: basic_block.h:45