NDLI: Real-time integration and differentiation of analog signals by means of digital filtering

Content Provider	IEEE Xplore Digital Library
Author	Pintelon, R. Schoukens, J.
Copyright Year	1990
Description	Author affiliation: Vrije Univ., Brussels, Belgium (Pintelon, R.; Schoukens, J.)
Abstract	The performance of digital infinite impulse response (IIR) integrators and differentiators, calculated by means of a maximum likelihood estimator for transfer functions, is compared with that of their finite impulse response (FIR) counterparts and that of classical numerical integration and differentiation. An original design method that generates stable and reduced-order IIR filters in the complex domain (amplitude as well as phase constraints) is presented. In contrast to common opinion, it is shown that it is possible to design easy realizable IIR integrators and differentiators with an arbitrary small amplitude and phase error. Although there is no FIR alternative for IIR integrators, both FIR and IIR methods give competitive results for differentiators. It is shown that, owing to the design of pure delay filters, the (optimal) fractional delay integrators and differentiators can be used in case the original waveform and one (or more) of its (higher order) derivatives and (or) integrals are required.
Starting Page	346
Ending Page	352
File Size	402032
Page Count	7
File Format	PDF
DOI	10.1109/IMTC.1990.66036
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1990-02-13
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Digital filters Finite impulse response filter IIR filters Integrated circuit measurements Frequency domain analysis Digital signal processing Nonlinear filters Filtering Analog circuits Circuit stability
Content Type	Text
Resource Type	Article

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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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