Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/62938
Title: Weighted least squares algorithm for the design of lattice-type perfect reconstruction cosine modulated filter banks
Authors: Goh, C.K.
Lim, Y.C. 
Yang, R. 
Issue Date: 1999
Source: Goh, C.K.,Lim, Y.C.,Yang, R. (1999). Weighted least squares algorithm for the design of lattice-type perfect reconstruction cosine modulated filter banks. Proceedings - IEEE International Symposium on Circuits and Systems 3 : III-371. ScholarBank@NUS Repository.
Abstract: This paper presents a weighted least squares (WLS) algorithm for the design of lattice-type perfect reconstruction (PR) cosine modulated filter banks. The design of such a filter bank is formulated as a WLS problem with respect to the lattice coefficients, incorporating the condition that a number of the zeros of the prototype filter must be at specific locations in the stopband. Our iterative algorithm needs only a few iterations to derive a set of lattice coefficients which optimizes this WLS problem, while providing flexible control of the prototype filter's stopband ripples. By specifying appropriate zeros of the prototype filter in the stopband, good designs with no DC leakage can be easily obtained.
Source Title: Proceedings - IEEE International Symposium on Circuits and Systems
URI: http://scholarbank.nus.edu.sg/handle/10635/62938
ISBN: 0780354710
ISSN: 02714310
Appears in Collections:Staff Publications

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