On low sensitivity/noise digital filter structures

Research output: Journal Publications and ReviewsRGC 22 - Publication in policy or professional journal

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Author(s)

Detail(s)

Original languageEnglish
Pages (from-to)845-847
Journal / PublicationICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
Volume2
Publication statusPublished - 1989
Externally publishedYes

Conference

Title1989 International Conference on Acoustics, Speech, and Signal Processing (ICASSP-89)
PlaceUnited Kingdom
CityGlasgow, Scotland
Period23 - 26 May 1989

Abstract

A unified investigation is presented for low-sensitivity, limit-cycle-free filter structures. It is shown that important properties like boundedness and pseudopassivity are closely related to the symmetry of the system matrix description. Implementations by digital circuits are considered. It is demonstrated that symmetric matrix systems can be designed for optimal circuit performance. Sensitivity can be minimized if the deviation of component values is kept symmetric, which can be achieved for a digital filter design by carefully selecting the coefficient truncations.