Title :
Improved design of minimum-phase FIR digital filters by cepstrum and fast Hartley transform
Author :
Pei, Soo-Chang ; Jaw, S.-B.
Author_Institution :
Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan
fDate :
7/5/1990 12:00:00 AM
Abstract :
An equiripple minimum-phase FIR filter is designed using the cepstrum and the fast Hartley transform (FHT). This fast procedure is performed entirely in the real domain and requires only two short-length FHT computations. This method avoids complicated phase wrapping and greatly reduces the aliasing error.
Keywords :
digital filters; filtering and prediction theory; FIR digital filters; aliasing error reduction; avoids complicated phase wrapping; cepstrum; equiripple minimum-phase FIR filter; fast Hartley transform; real domain; two short-length FHT computations;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19900688