Recent Advances in FIR Approximation by IIR Digital Filters

摘要：

This paper provides a tutorial review on several recent design methods for approximating FIR by IIR digital filters with reduced order. These methods can generally be classified as time-domain method, frequency-domain method, and mixed-domain method. The numerator and denominator of IIR digital filters are obtained in different steps under some criteria. The final result of each design method cannot be ensured to be optimal or even suboptimal for such approximation problem. Also, some methods do not incorporate a stability constraint hence stability is not really ensured. In this paper the design steps of each of these methods are outlined. Through three examples, we analyze their performances and identify the strengths and weaknesses of each design method.

作者: Hon Keung Kwan Aimin Jiang

作者单位: Department of Electrical and Computer Engineering University of Windsor Windsor, Ontario, Canada N9B 3P4

会议类型: 国际会议

会议名称: 2006 International Conference on Communications,Circuits and Systems(第四届国际通信、电路与系统学术会议)

会议地点: 广西桂林

会议语种:英文

页码: 185-190

在线出版日期: 2006-06-25（万方平台首次上网日期，不代表论文的发表时间）