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Use of the Matching Pursuit Algorithm for Flight Flutter Test Data AnalysisThe goal of flight flutter testing is to detect possibly destructive modes of aircraft vibration which may arise during flight from interaction of aerodynamic forces with structural dynamic properties of the airframe. This is typically accomplished by exciting the airframe with a time varying force and monitoring the response of the aircraft throughout its flight envelope. The data generated must be analyzed and presented so that the frequency and time of occurrence of excited modes are clearly and unambiguously displayed. Processing and display in near real time is also desirable. Display of data in the time-frequency plane is a natural choice because it is a familiar and intuitive framework. The Matching Pursuit algorithm provides a time-frequency analysis with good adaptability to signal structure and good signal representation in the time-frequency plane. Improvements in efficiency are needed before the algorithm can be used in real time, however.
Document ID
19970010173
Document Type
Other
Authors
Nelson, Ronald E. (Arkansas Technical Univ. Russellville, AR United States)
Brenner, Martin (NASA Dryden Flight Research Center Edwards, CA United States)
Date Acquired
August 17, 2013
Publication Date
October 1, 1996
Subject Category
Aircraft Stability and Control
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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IDRelationTitle19970010146Analytic Primary1996 NASA-ASEE-Stanford Summer Faculty Fellowship Program
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