SPUC::remez_fir Class Reference

template Remez_fir class More...

#include <remez_fir.h>

Public Member Functions
	remez_fir ()

Static Public Member Functions
static bool	remez (std::vector< float_type > &filt, int n, int numband, std::vector< float_type > &bands, const std::vector< float_type > &des, const std::vector< float_type > &weight, int type)

Detailed Description

template Remez_fir class

Calculates the optimal (in the Chebyshev/minimax sense) FIR filter impulse response given a set of band edges, the desired reponse on those bands, and the weight given to the error in those bands.

Inputs:

int numtaps - Number of filter coefficients

int numband - Number of bands in filter specification

float_type[] bands - User-specified band edges [2 * numband]

float_type[] des - User-specified band responses [numband]

float_type[] weight - User-specified error weights [numband]

int type - Type of filter

Output:

float_type[] h - Impulse response of final filter [numtaps]

Author

Tony Kirke

Constructor & Destructor Documentation

SPUC::remez_fir::remez_fir ( )

inline

Member Function Documentation

bool SPUC::remez_fir::remez ( std::vector< float_type > &  filt, int  n, int  numband, std::vector< float_type > &  bands, const std::vector< float_type > &  des, const std::vector< float_type > &  weight, int  type  )

static

References BANDPASS, SPUC::cos(), DIFFERENTIATOR, GRIDDENSITY, SPUC::inv_dft(), SPUC::inv_dft_symmetric(), MAXITERATIONS, NEGATIVE, PI, POSITIVE, and TWOPI.

Referenced by SPUC::create_remez_fir(), SPUC::create_remez_lpfir(), and SPUC::remez_function().

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

• remez_fir.h
• remez_fir.cpp