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Minimax design of two-channel low-delay perfect-reconstruction FIR filter banks

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3 Author(s)
S. J. Yang ; Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan ; J. -H. Lee ; B. -C. Chieu

The authors deal with the design problem of low-delay perfect-reconstruction filter banks for which the FIR analysis and synthesis filters have equiripple magnitude response. Based on the minimax error criterion, the design problem is formulated in such a manner that the coefficients for the FIR analysis filters can be found by minimising the weighted peak error of the designed analysis filters, subject to the perfect-reconstruction constraints. A design technique based on a modified dual-affine scaling variant of Karmarkar's (1989) algorithm, in conjunction with approximation schemes, is then developed for solving the resulting nonlinear optimisation problem. The effectiveness of the proposed design technique is demonstrated by several simulation examples

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IEE Proceedings - Vision, Image and Signal Processing  (Volume:146 ,  Issue: 1 )