Title :
Minimax design of two-channel nonuniform-division FIR filter banks
Author :
Lee, J.-H. ; Tang, D.-C.
Author_Institution :
Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan
fDate :
4/1/1998 12:00:00 AM
Abstract :
The paper deals with the minimax design of two-channel nonuniform-division filter (NDF) banks. Based on a linearisation scheme, the design problem is formulated as an optimisation problem with linear constraints. The authors present a method to design a two-channel NDF bank using a modified dual-affine scaling variant of Karmarkar´s (1984) algorithm. This method provides the optimal results that the linear-phase FIR analysis and synthesis filters have equiripple stopband response and the resulting NDF bank also shows equiripple reconstruction error behaviour. The effectiveness of the proposed design technique is demonstrated by several simulation examples
Keywords :
FIR filters; band-pass filters; circuit optimisation; linearisation techniques; minimax techniques; network synthesis; signal reconstruction; Karmarkar´s algorithm; dual-affine scaling; equiripple reconstruction error; equiripple stopband response; linear constraints; linear-phase FIR analysis filters; linear-phase FIR synthesis filters; linearisation scheme; minimax design; nonuniform-division FIR filter banks; optimisation problem; simulation; two-channel filter banks;
Journal_Title :
Vision, Image and Signal Processing, IEE Proceedings -
DOI :
10.1049/ip-vis:19981860
