A computationally efficient design of two-band QMF banks based on the frequency-sampling approach

Rajeeve Gandhi and Sanjit K. Mitra
Department of Electrical and Computer Engineering
University of California, Santa Barbara, CA 93106
rajeev [at] iplab.ece.ucsb.edu, mitra [at] ece.ucsb.edu


Two new methods for computationally efficient design of two-channel quadrature mirror filter(QMF) banks based on the frequency sampling approach are introduced. In the proposed approach, the number of parameters to be optimized are reduced significantly, thereby leading to a faster design of the two-channel QMF banks. The characteristics of the filters obtained are comparable to those of some of the existing QMF banks, in terms of the overall amplitude distortion and the minimum stopband attenuation.
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R. Gandhi and S. K. Mitra,
IEEE International Symposium on Circuits and Systems (ISCAS'98), pp. 421-424, Monterey, CA, Jun. 1998.
Node ID: 268 , DB ID: 64 , Lab: IPL , Target: Proceedings
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