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WFILT_REMEZ - Filters designed using Remez exchange algorithm

Usage

[h,g,a]=wfilt_remez(L,K,B)

Input parameters

L Length of the filters.
K Degree of flatness (regularity) at \(z=-1\).
B Normalized transition bandwidth.

Description

[h,g,a]=wfilt_remez(L,K,B) calculates a set of wavelet filters. Regularity, frequency selectivity, and length of the filters can be controlled by K, B and L parameters respectivelly.

The filter desigh algorithm is based on a Remez algorithm and a factorization of the complex cepstrum of the polynomial.

Examples:

wfiltinfo('remez50:2:0.1');

References:

O. Rioul and P. Duhamel. A remez exchange algorithm for orthonormal wavelets. Circuits and Systems II: Analog and Digital Signal Processing, IEEE Transactions on, 41(8):550 --560, aug 1994.