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Improved Notch Filter For Synchronous-Response ControlTracking differential-notch filter (TDNF) developed to retain good synchronous-response performance of notch filter, but with vastly improved stability properties. Measurement error perfectly filtered from feedback signal used to drive compensator. Provides good stability of simple lead/lag compensator combined with good synchronous-response performance gained by addition of notch filter.
Document ID
19910000141
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Johnson, Bruce G.
(SatCon Technology Corp.)
Downer, James R.
(SatCon Technology Corp.)
Eisenhaure, David B.
(SatCon Technology Corp.)
Hockney, Richard
(SatCon Technology Corp.)
Misovec, Kathleen
(SatCon Technology Corp.)
Date Acquired
August 14, 2013
Publication Date
April 1, 1991
Publication Information
Publication: NASA Tech Briefs
Volume: 15
Issue: 4
ISSN: 0145-319X
Subject Category
Electronic Systems
Report/Patent Number
LAR-14173
Accession Number
91B10141
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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