IEEE Transactions on Signal Processing, vol. 48, no. 5, pp. 1491-1495, May 2000.

Design of Optimal Minimum Phase Digital FIR Filters Using Discrete Hilbert Transforms

Niranjan Damera-Venkata (1), Shawn R. McCaslin (2), and Brian L. Evans (1).

(1) Department of Electrical and Computer Engineering, Engineering Science Building, The University of Texas at Austin, Austin, TX 78712-1084

(2) Cicada Semiconductor, 1717 W. 6th Street, Suite 440, Austin, TX 78703.
srmccaslin AT

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We present a robust non-iterative algorithm to design optimal minimum phase digital FIR filters with real or complex coefficients. We derive (1) the discrete Hilbert transform (DHT) of the complex cepstrum of a causal complex minimum phase sequence, and (2) the minimum fast Fourier transform length for computing the DHT to achieve a desired coefficient accuracy.

Last Updated 11/08/04.