SPUC::cordic< Numeric > Class Template Reference
[SPUC templates with real parameters, Miscellaneous DSP]

Cordic rotator. More...

#include <cordic.h>

List of all members.

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

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Detailed Description

template<class Numeric>
class SPUC::cordic< Numeric >

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

Author:

Tony Kirke

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Constructor & Destructor Documentation

template<class Numeric>

SPUC::cordic< Numeric >::cordic

(

int

n = 7

)

[inline]

initializes tables and constants for the CORDIC algorithm

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Member Function Documentation

template<class Numeric>

Numeric SPUC::cordic< Numeric >::cordic_vector

(

complex< Numeric >

in

)

[inline, protected]

Cordic vectoring calculates arg and magnitude.

template<class Numeric>

complex<Numeric> SPUC::cordic< Numeric >::rotate	(	complex< Numeric >	in,
		float_type	angle
	)			[inline]

template<class Numeric>

float_type SPUC::cordic< Numeric >::vector_arg

(

complex< Numeric >

in

)

[inline]

Returns arg through CORDIC vectoring.

template<class Numeric>

Numeric SPUC::cordic< Numeric >::vector_mag

(

complex< Numeric >

in

)

[inline]

Returns magnitude through CORDIC vectoring.

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Member Data Documentation

template<class Numeric>

smart_array<float_type> SPUC::cordic< Numeric >::arctan_lut

template<class Numeric>

smart_array<complex<Numeric> > SPUC::cordic< Numeric >::stage

template<class Numeric>

long SPUC::cordic< Numeric >::stages

template<class Numeric>

float_type SPUC::cordic< Numeric >::vector_angle

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

• cordic.h

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