gr_correlate_access_code_tag_bb Class Reference

Examine input for specified access code, one bit at a time.input: stream of bits, 1 bit per input byte (data in LSB) output: unaltered stream of bits (plus tags) More...

#include <gr_correlate_access_code_tag_bb.h>

Inheritance diagram for gr_correlate_access_code_tag_bb:

List of all members.

Public Member Functions
	~gr_correlate_access_code_tag_bb ()
int	work (int noutput_items, gr_vector_const_void_star &input_items, gr_vector_void_star &output_items)
	just like gr_block::general_work, only this arranges to call consume_each for you
bool	set_access_code (const std::string &access_code)
Protected Member Functions
	gr_correlate_access_code_tag_bb (const std::string &access_code, int threshold, const std::string &tag_name)
Friends
GR_CORE_API gr_correlate_access_code_tag_bb_sptr	gr_make_correlate_access_code_tag_bb (const std::string &access_code, int threshold, const std::string &tag_name)

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Detailed Description

Examine input for specified access code, one bit at a time.

input: stream of bits, 1 bit per input byte (data in LSB) output: unaltered stream of bits (plus tags)

This block annotates the input stream with tags. The tags have key name [tag_name], specified in the constructor. Used for searching an input data stream for preambles, etc.

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Constructor & Destructor Documentation

gr_correlate_access_code_tag_bb::gr_correlate_access_code_tag_bb	(	const std::string &	access_code,
		int	threshold,
		const std::string &	tag_name
	)		[protected]

gr_correlate_access_code_tag_bb::~gr_correlate_access_code_tag_bb

(

)

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Member Function Documentation

bool gr_correlate_access_code_tag_bb::set_access_code

(

const std::string &

access_code

)

Parameters:

access_code

is represented with 1 byte per bit, e.g., "010101010111000100"

int gr_correlate_access_code_tag_bb::work	(	int	noutput_items,
		gr_vector_const_void_star &	input_items,
		gr_vector_void_star &	output_items
	)		[virtual]

just like gr_block::general_work, only this arranges to call consume_each for you

The user must override work to define the signal processing code

Implements gr_sync_block.

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Friends And Related Function Documentation

GR_CORE_API gr_correlate_access_code_tag_bb_sptr gr_make_correlate_access_code_tag_bb	(	const std::string &	access_code,
		int	threshold,
		const std::string &	tag_name
	)		[friend]

Parameters:

access_code	is represented with 1 byte per bit, e.g., "010101010111000100"
threshold	maximum number of bits that may be wrong
tag_name	key of the tag inserted into the tag stream

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The documentation for this class was generated from the following file:

• gr_correlate_access_code_tag_bb.h