DESIGN OF IIR NOTCH FILTERS WITH DIFFERENT PASSBAND GAINS

Authors
JOSHI YV ROY SCD
Citation
Yv. Joshi et Scd. Roy, DESIGN OF IIR NOTCH FILTERS WITH DIFFERENT PASSBAND GAINS, IEE proceedings. Vision, image and signal processing, 145(1), 1998, pp. 6-10
Citations number
13
Categorie Soggetti
Engineering, Eletrical & Electronic
Journal title
IEE proceedings. Vision, image and signal processing → ACNP
ISSN journal
1350245X
Volume
145
Issue
1
Year of publication
1998
Pages
6 - 10
Database
ISI
SICI code
1350-245X(1998)145:1<6:DOINFW>2.0.ZU;2-H
Abstract
A method is proposed for the design of infinite-duration impulse respo nse (IIR) notch filters with different passband gains using the standa rd lowpass IIR digital-filter design methods. This method satisfies th e notch-frequency specification exactly and realises a rejection bandw idth, defined by the frequencies at which the gain is 3 dB below the l ower of the two passband gains, which is smaller than that specified. Illustrative examples are given.