[h,g,a]=wfilt_remez(L,K,B)
L | Length of the filters. |
K | Degree of flatness (regularity) at \(z=-1\). |
B | Normalized transition bandwidth. |
[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.
wfiltinfo('remez50:2:0.1');
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.