gr::digital::constellation_calcdist Class Reference

Calculate Euclidian distance for any constellationConstellation which calculates the distance to each point in the constellation for decision making. Inefficient for large constellations. More...

#include <constellation.h>

Inheritance diagram for gr::digital::constellation_calcdist:

List of all members.

Public Types
typedef boost::shared_ptr < constellation_calcdist >	sptr
Public Member Functions
unsigned int	decision_maker (const gr_complex *sample)
	Returns the constellation point that matches best.
Static Public Member Functions
static sptr	make (std::vector< gr_complex > constell, std::vector< int > pre_diff_code, unsigned int rotational_symmetry, unsigned int dimensionality)
Protected Member Functions
	constellation_calcdist (std::vector< gr_complex > constell, std::vector< int > pre_diff_code, unsigned int rotational_symmetry, unsigned int dimensionality)

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Detailed Description

Calculate Euclidian distance for any constellation

Constellation which calculates the distance to each point in the constellation for decision making. Inefficient for large constellations.

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Member Typedef Documentation

typedef boost::shared_ptr<constellation_calcdist> gr::digital::constellation_calcdist::sptr

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Constructor & Destructor Documentation

gr::digital::constellation_calcdist::constellation_calcdist	(	std::vector< gr_complex >	constell,
		std::vector< int >	pre_diff_code,
		unsigned int	rotational_symmetry,
		unsigned int	dimensionality
	)		[protected]

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Member Function Documentation

unsigned int gr::digital::constellation_calcdist::decision_maker

(

const gr_complex *

sample

)

[virtual]

Returns the constellation point that matches best.

Implements gr::digital::constellation.

static sptr gr::digital::constellation_calcdist::make	(	std::vector< gr_complex >	constell,
		std::vector< int >	pre_diff_code,
		unsigned int	rotational_symmetry,
		unsigned int	dimensionality
	)		[static]

Make a general constellation object that calculates the Euclidean distance for hard decisions.

Parameters:

constell	List of constellation points (order of list matches pre_diff_code)
pre_diff_code	List of alphabet symbols (before applying any differential coding) (order of list matches constell)
rotational_symmetry	Number of rotations around unit circle that have the same representation.
dimensionality	Number of dimensions to the constellation.

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

• constellation.h