Frequency weighted system identification and linear quadratic controller designApplication of filters for frequency weighting of Markov parameters (pulse response functions) is described in relation to system/observer identification. The time domain identification approach recovers a model which has a pulse response weighted according to frequency. The identified model is composed of the original system and filters. The augmented system is in a form which can be used directly for frequency weighted linear quadratic controller design. Data from either single or multiple experiments can be used to recover the Markov parameters. Measured acceleration signals from a truss structure are used for system identification and the model obtained is used for frequency weighted controller design. The procedure makes the identification and controler design complementary problems.
Document ID
19910065068
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Horta, Lucas G. (NASA Langley Research Center Hampton, VA, United States)
Phan, Minh (NASA Langley Research Center Hampton, VA, United States)
Juang, Jer-Nan (NASA Langley Research Center Hampton, VA, United States)
Longman, Richard W. (NASA Langley Research Center Hampton, VA, United States)
Sulla, Jeffrey L. (NASA Langley Research Center Hampton, VA, United States)
Date Acquired
August 14, 2013
Publication Date
January 1, 1991
Subject Category
Cybernetics
Report/Patent Number
AIAA PAPER 91-2733
Meeting Information
Meeting: AIAA Guidance, Navigation and Control Conference