gr::digital::constellation_rect Class Reference

Rectangular digital constellationOnly implemented for 1-(complex)dimensional constellation. More...

#include <constellation.h>

Inheritance diagram for gr::digital::constellation_rect:

List of all members.

Public Types
typedef boost::shared_ptr < constellation_rect >	sptr
Public Member Functions
	~constellation_rect ()
Static Public Member Functions
static constellation_rect::sptr	make (std::vector< gr_complex > constell, std::vector< int > pre_diff_code, unsigned int rotational_symmetry, unsigned int real_sectors, unsigned int imag_sectors, float width_real_sectors, float width_imag_sectors)
Protected Member Functions
	constellation_rect (std::vector< gr_complex > constell, std::vector< int > pre_diff_code, unsigned int rotational_symmetry, unsigned int real_sectors, unsigned int imag_sectors, float width_real_sectors, float width_imag_sectors)
unsigned int	get_sector (const gr_complex *sample)
unsigned int	calc_sector_value (unsigned int sector)

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Detailed Description

Rectangular digital constellation

Only implemented for 1-(complex)dimensional constellation.

Constellation space is divided into rectangular sectors. Each sector is associated with the nearest constellation point.

Works well for square QAM.

Works for any generic constellation provided sectors are not too large.

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Member Typedef Documentation

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

Reimplemented in gr::digital::constellation_expl_rect.

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Constructor & Destructor Documentation

gr::digital::constellation_rect::~constellation_rect

(

)

gr::digital::constellation_rect::constellation_rect	(	std::vector< gr_complex >	constell,
		std::vector< int >	pre_diff_code,
		unsigned int	rotational_symmetry,
		unsigned int	real_sectors,
		unsigned int	imag_sectors,
		float	width_real_sectors,
		float	width_imag_sectors
	)		[protected]

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Member Function Documentation

unsigned int gr::digital::constellation_rect::calc_sector_value

(

unsigned int

sector

)

[protected, virtual]

Implements gr::digital::constellation_sector.

Reimplemented in gr::digital::constellation_expl_rect.

unsigned int gr::digital::constellation_rect::get_sector

(

const gr_complex *

sample

)

[protected, virtual]

Implements gr::digital::constellation_sector.

static constellation_rect::sptr gr::digital::constellation_rect::make	(	std::vector< gr_complex >	constell,
		std::vector< int >	pre_diff_code,
		unsigned int	rotational_symmetry,
		unsigned int	real_sectors,
		unsigned int	imag_sectors,
		float	width_real_sectors,
		float	width_imag_sectors
	)		[static]

Make a rectangular constellation object.

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.
real_sectors	Number of sectors the real axis is split in to.
imag_sectors	Number of sectors the imag axis is split in to.
width_real_sectors	width of each real sector to calculate decision boundaries.
width_imag_sectors	width of each imag sector to calculate decision boundaries.

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

• constellation.h