SPUC::cordic

SPUC::cordic Class Reference
[Miscellaneous functions]

Cordic rotator. More...

#include <cordic.h>

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[legend]List of all members.


Public Member Functions
	cordic (int n=7)
	initializes tables and constants for the CORDIC algorithm
long	vector_mag (complex< long > in)
	Returns magnitude through CORDIC vectoring.
double	vector_arg (complex< long > in)
	Returns arg through CORDIC vectoring.
complex< long >	rotate (complex< long > in, double angle)
Public Attributes
double *	arctan_lut
complex< long > *	stage
int	stages
double	vector_angle
Protected Member Functions
complex< long >	vector (complex< long > in)
	Cordic vectoring calculates arg and magnitude.

Detailed Description

Cordic rotator.

Performs CORDIC rotations To rotate a vector through an angle of theta, we calculate:

x' = x cos(theta) - y sin(theta) y' = x sin(theta) + y cos(theta) Can be easily modified for hyperbolic and other functions

Constructor & Destructor Documentation

SPUC::cordic::cordic ( int n = 7 )

initializes tables and constants for the CORDIC algorithm

Member Function Documentation

complex< long > SPUC::cordic::rotate ( complex< long > in,

double angle

)

complex< long > SPUC::cordic::vector ( complex< long > in ) [protected]

Cordic vectoring calculates arg and magnitude.

double SPUC::cordic::vector_arg ( complex< long > in ) [inline]

Returns arg through CORDIC vectoring.

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long SPUC::cordic::vector_mag ( complex< long > in ) [inline]

Returns magnitude through CORDIC vectoring.

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