Optimisation of driving-point immittance with equiripple magnitude
作者:
D.Rabrenović,
M.Lutovac,
期刊:
IEE Proceedings G (Circuits, Devices and Systems)
(IET Available online 1990)
卷期:
Volume 137,
issue 4
页码: 233-237
年代: 1990
DOI:10.1049/ip-g-2.1990.0036
出版商: IEE
数据来源: IET
摘要:
A simple procedure for the design of a Chebyshev rational function is presented. Extremes of the equiripple magnitude function are defined by the accepted orthogonal polynomial, the ‘ minimum property’ of which guarantees a good group delay characteristic and small transient overshoot. A single parameter allows us to compromise between a broad bandwidth and a good group delay characteristic without changing the magnitude of the ripples. When compared with the published maximally flat approximations, the presented function proved superior in both the frequency and time domains.One of the possible applications of such rational functions, in the design of equalisers to cancel the effects of parasitic reactances, is discussed.
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