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Design of FIR filters by complex Chebyshev approximation
Conference proceeding

Design of FIR filters by complex Chebyshev approximation

A. Alkhairy, K. Christian, J. Lim and IEEE
[Proceedings] ICASSP 91: 1991 International Conference on Acoustics, Speech, and Signal Processing, Vol.3, pp.1985-1988 vol.3
1991
DOI: https://doi.org/10.1109/ICASSP.1991.150787

Abstract

Algorithm design and analysis Chebyshev approximation Delay Equalizers Finite impulse response filter Frequency response Nonlinear filters
The authors present an algorithm for designing an optimal FIR (finite impulse response) filter with real coefficients that best approximates an arbitrary complex-valued frequency response. This algorithm is theoretically guaranteed to converge with each iteration requiring O(N/sup 2/) computations, where N represents the filter length. The properties of the optimal filter are derived and presented, and particular attention is paid to the case where the desired filter has arbitrary constant group delay.< >

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