Title :
A new approach for 2-D narrow-band circularly symmetry filter design
Author :
Yang, Ronghuan ; Liu, Bede
Author_Institution :
Inst. of Process Autom. Instrum., Shanghai, China
Abstract :
An approach to 2-D narrowband low-pass filter with circular symmetry is presented. This approach uses a cascade structure of a simple 2-D prefilter and a McClellan-transformed 1-D finite impulse response (FIR) equalizer. If the desired filter is not of the narrowband type, the proposed approach loses its effectiveness because one cannot take the advantage of the simple prefilter.<>
Keywords :
cascade networks; low-pass filters; network synthesis; two-dimensional digital filters; 1D FIR equaliser; 2D prefilter; McClellan-transformed; cascade structure; circularly symmetry; filter design; finite impulse response; narrow-band; narrowband low-pass filter; Circuit stability; Circuit theory; Digital filters; Equalizers; Filtering; Fixed-point arithmetic; Narrowband; Signal processing; Speech processing; Transfer functions;
Journal_Title :
Circuits and Systems, IEEE Transactions on
