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A narrowband IIR digital filter with low sensitivity and roundoff noise

Content Provider	IEEE Xplore Digital Library
Author	Jackson, L.B.
Copyright Year	1994
Abstract	An efficient infinite-impulse response (IIR) structure is produced via spectral transformation of an appropriate finite-impulse response (FIR) prototype design. The filter specifications are prewarped to a halfband design by an allpass relationship to produce the efficient FIR prototype. The allpass coefficient is chosen to be exactly realizable with a small number of multiplier bits. Hence, the only coefficient quantization required is for the original FIR coefficients, which are relatively insensitive. The roundoff noise for fixed-point implementations is also quite low compared with conventional IIR designs. Scaling for overflow can be avoided completely, or, to save multipliers, a simple scale factor can be employed.
Sponsorship	IEEE Signal Processing Society
Starting Page	164
Ending Page	167
Page Count	4
File Size	270199
File Format	PDF
ISSN	10709908
Volume Number	10
Issue Number	6
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2003-06-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Narrowband Digital filters Finite impulse response filter Prototypes IIR filters Band pass filters Delay Algorithm design and analysis Cutoff frequency Quantization
Content Type	Text
Resource Type	Article
Subject	Applied Mathematics Signal Processing Electrical and Electronic Engineering

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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