Construction of filter functions from phase polynomials
作者:
L.F.Lind,
S.A.Mohammed,
期刊:
IEE Proceedings G (Electronic Circuits and Systems)
(IET Available online 1981)
卷期:
Volume 128,
issue 4
页码: 152-153
年代: 1981
DOI:10.1049/ip-g-1.1981.0030
出版商: IEE
数据来源: IET
摘要:
This paper shows how a rational transfer function can be constructed from phase polynomials such that, at given frequency points, the transfer function has prespecified phases and perfect power transmission. The frequency points do not have to be equally spaced, and the phase response does not have to be linear. The resulting transfer function is generally realisable, although there are some exceptional cases. Formulas for the reflection and transmission coefficients are given in closed form, which are easily implemented on a desktop computer.
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