Design of 1-D Stable Variable Fractional Delay IIR Filters Using Finite Impulse Response Fitting
In this paper, a novel finite impulse response fittingbased approach for the design of 1-D stable variable fractional delay IIR filters is proposed. The design algorithm is decomposed into three design stages: Firstly, a set of fixed delay FIR filters is designed by using Weighted Least-Squares method. Then, the related set of fixed delay stable IIR filters is determined via finite impulse response fitting. Finally, the design result is obtained by fitting each of the fixed delay IIR filter coefficients as 1-D polynomials. It is shown that the proposed method always guarantees the filter obtained to be stable and has very low computation complexity comparable with that of designing fixed FIR filters. Two illustrative design examples are given to justify the effectiveness and advantages over other existing approaches for designing variable fractional delay IIR filters.
Hui Zhao Hon Keung Kwan Li Wan Lei Nie
School of Automation Engineering University of Electronic Science and Technology of China Chengdu, S Department of Electrical and Computer Engineering University of Windsor Windsor, Ontario, Canada
国际会议
2006 International Conference on Communications,Circuits and Systems(第四届国际通信、电路与系统学术会议)
广西桂林
英文
201-205
2006-06-25（万方平台首次上网日期，不代表论文的发表时间）