Title :
A design of linear-phased IIR Nyquist filters
Author :
Maeng, Seung Joo ; Lee, Byeong Gi
Author_Institution :
Dept. of Electron. Eng., Seoul Nat. Univ., South Korea
fDate :
1/1/1995 12:00:00 AM
Abstract :
This paper discusses a new method of designing linear-phased IIR Nyquist filters with zero intersymbol interference. The filters designed by this method possess linear-phase characteristics and are lower in order than other Nyquist filters designed by existing methods. Expressions are derived for zero-phased IIR Nyquist filters and efficient design methods are examined for them. The opted design method is based on an iteration process, and in each iteration step a modified version of the Remez exchange algorithm is used. In addition, the implementation of the designed zero-phased IIR filters is considered. Finally, the proposed design method is demonstrated through various design examples
Keywords :
IIR filters; delay circuits; filtering theory; intersymbol interference; network synthesis; Remez exchange algorithm; design method; inear-phase characteristics; iteration process; linear-phased IIR Nyquist filters; zero intersymbol interference; zero-phased IIR filters; Chebyshev approximation; Design methodology; Digital filters; Finite impulse response filter; IIR filters; Interpolation; Intersymbol interference; Modems; Signal generators; Space technology;
Journal_Title :
Selected Areas in Communications, IEEE Journal on
