Optimal model reduction with applications in filter approximation 1

Autor:	Lihua Xie, Wei-Yong Yan, Luowen Li, Yeng Chai Soh
Rok vydání:	1999
Předmět:	Adaptive filter Filter design Control theory 2D Filters Butterworth filter Prototype filter Passband Infinite impulse response Linear phase Mathematics
Zdroj:	IFAC Proceedings Volumes. 32:4235-4240
ISSN:	1474-6670
DOI:	10.1016/s1474-6670(17)56722-1
Popis:	This paper presents a gradient flow approach to the design of IIR filters with linear phase characteristics in the passband. This technique is based on the approximation of a linear phase FIR prototype which satisfies the given frequency response specifications and subsequently obtaining a lower order IIR filter through the gradient flow model reduction method. A convergent iterative algorithm is developed for the optimization. Filters designed using the proposed algorithm are compared with those obtained by other techniques with respect to the amplitude response and group delay characteristics in the passband
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::e1feb46d97a7e88d59824f7fe24473e1 https://doi.org/10.1016/s1474-6670(17)56722-1 Zobrazit plný text záznamu