Title :
Minimax design of FIR digital all-pass filters
Author :
Chao, Her-Chang ; Lin, Chih-Shin ; Chieu, Bin-Chang
Author_Institution :
Dept. of Electron. Eng., Van Nung Inst. of Technol., Yao Yuan, Taiwan
fDate :
6/1/2000 12:00:00 AM
Abstract :
This paper considers the design of digital all-pass finite impulse response filters in the minimax sense. Our proposed algorithm is a numerical technique to obtain the optimal filter coefficients by using a primal affine scaling variant of Karmarkar´s algorithm. Under this approach, we formulate the design problem in terms of minimizing the magnitude and phase errors simultaneously or minimizing the magnitude and group delay errors simultaneously. Computer simulation shows the effectiveness of the proposed design techniques
Keywords :
FIR filters; all-pass filters; digital filters; errors; filtering theory; minimax techniques; FIR digital all-pass filters; Karmarkar algorithm; design techniques; finite impulse response filters; group delay errors; magnitude errors; minimax design; numerical technique; optimal filter coefficients; phase errors; primal affine scaling variant; Algorithm design and analysis; Chaos; Chebyshev approximation; Computer errors; Delay; Digital filters; Finite impulse response filter; Linear programming; Minimax techniques; Signal processing algorithms;
Journal_Title :
Circuits and Systems II: Analog and Digital Signal Processing, IEEE Transactions on
