FIR.cpp File Reference

#include "FIR.h"
#include <stdlib.h>
#include <math.h>
#include <string.h>

Go to the source code of this file.

Macros
#define	BANDPASS   1
#define	DIFFERENTIATOR   2
#define	HILBERT   3
#define	NEGATIVE   0
#define	POSITIVE   1
#define	Pi   3.1415926535897932
#define	Pi2   6.2831853071795865
#define	GRIDDENSITY   16
#define	MAXITERATIONS   40

Functions
void	remez (double h[], int numtaps, int numband, double bands[], double des[], double weight[], int type)
void	CreateDenseGrid (int r, int numtaps, int numband, double bands[], double des[], double weight[], int *gridsize, double Grid[], double D[], double W[], int symmetry)
void	InitialGuess (int r, int Ext[], int gridsize)
void	CalcParms (int r, int Ext[], double Grid[], double D[], double W[], double ad[], double x[], double y[])
double	ComputeA (double freq, int r, double ad[], double x[], double y[])
void	CalcError (int r, double ad[], double x[], double y[], int gridsize, double Grid[], double D[], double W[], double E[])
void	Search (int r, int Ext[], int gridsize, double E[])
void	FreqSample (int N, double A[], double h[], int symm)
short	isDone (int r, int Ext[], double E[])

Macro Definition Documentation

#define BANDPASS   1

Definition at line 17 of file FIR.cpp.

Referenced by remez().

#define DIFFERENTIATOR   2

Definition at line 18 of file FIR.cpp.

Referenced by csl::FilterSpecification::planFilter(), and remez().

#define HILBERT   3

Definition at line 19 of file FIR.cpp.

#define NEGATIVE   0

Definition at line 226 of file FIR.cpp.

Referenced by CreateDenseGrid(), and remez().

#define POSITIVE   1

Definition at line 227 of file FIR.cpp.

Referenced by FreqSample(), and remez().

#define Pi   3.1415926535897932

Definition at line 229 of file FIR.cpp.

Referenced by FreqSample(), and remez().

#define Pi2   6.2831853071795865

Definition at line 230 of file FIR.cpp.

Referenced by CalcParms(), ComputeA(), FreqSample(), and remez().

#define GRIDDENSITY   16

Definition at line 231 of file FIR.cpp.

Referenced by CreateDenseGrid(), and remez().

#define MAXITERATIONS   40

Definition at line 232 of file FIR.cpp.

Referenced by remez().

Function Documentation

void remez	(	double	h[],
		int	numtaps,
		int	numband,
		double	bands[],
		double	des[],
		double	weight[],
		int	type
	)

Definition at line 750 of file FIR.cpp.

References BANDPASS, CalcError(), CalcParms(), ComputeA(), CreateDenseGrid(), DIFFERENTIATOR, FreqSample(), GRIDDENSITY, InitialGuess(), isDone(), MAXITERATIONS, NEGATIVE, Pi, Pi2, POSITIVE, and Search().

Referenced by csl::FilterSpecification::planFilter().

void CreateDenseGrid	(	int	r,
		int	numtaps,
		int	numband,
		double	bands[],
		double	des[],
		double	weight[],
		int *	gridsize,
		double	Grid[],
		double	D[],
		double	W[],
		int	symmetry
	)

Definition at line 260 of file FIR.cpp.

References GRIDDENSITY, and NEGATIVE.

Referenced by remez().

void InitialGuess	(	int	r,
		int	Ext[],
		int	gridsize
	)

Definition at line 325 of file FIR.cpp.

Referenced by remez().

void CalcParms	(	int	r,
		int	Ext[],
		double	Grid[],
		double	D[],
		double	W[],
		double	ad[],
		double	x[],
		double	y[]
	)

Definition at line 354 of file FIR.cpp.

References Pi2.

Referenced by remez().

double ComputeA	(	double	freq,
		int	r,
		double	ad[],
		double	x[],
		double	y[]
	)

Definition at line 431 of file FIR.cpp.

References Pi2.

Referenced by CalcError(), and remez().

void CalcError	(	int	r,
		double	ad[],
		double	x[],
		double	y[],
		int	gridsize,
		double	Grid[],
		double	D[],
		double	W[],
		double	E[]
	)

Definition at line 479 of file FIR.cpp.

References ComputeA().

Referenced by remez().

void Search	(	int	r,
		int	Ext[],
		int	gridsize,
		double	E[]
	)

Definition at line 518 of file FIR.cpp.

Referenced by remez().

void FreqSample	(	int	N,
		double	A[],
		double	h[],
		int	symm
	)

Definition at line 632 of file FIR.cpp.

References Pi, Pi2, and POSITIVE.

Referenced by remez().

short isDone	(	int	r,
		int	Ext[],
		double	E[]
	)

Definition at line 708 of file FIR.cpp.

References max, and min.

Referenced by remez().