It was shown recently that parameter estimation can be performed directly in the time-scale domain by isolating regions wherein the prediction error can be attributed to the error of individual dynamic model parameters [1]. Based on these single-parameter attributions of the prediction error, individual parameter errors can be estimated for iterative parameter estimation. A benefit of relying entirely on the time-scale domain for parameter estimation is the added capacity for noise suppression. This paper explores this benefit by introducing a noise compensation method that estimates the distortion by noise of the prediction error in the time-scale domain and incorporates it as a confidence factor when estimating individual parameter errors. This method is shown to further improve the estimated parameters beyond the time-filtering and denoising techniques developed for time-based estimation.
ASME 2009 Dynamic Systems and Control Conference
October 12–14, 2009
Hollywood, California, USA
Conference Sponsors:
- Dynamic Systems and Control Division
ISBN:
978-0-7918-4892-0
PROCEEDINGS PAPER
Improved Parameter Estimation by Noise Compensation in the Time-Scale Domain
James R. McCusker
,
James R. McCusker
University of Massachusetts at Amherst, Amherst, MA
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Todd Currier
,
Todd Currier
University of Massachusetts at Amherst, Amherst, MA
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Kourosh Danai
Kourosh Danai
University of Massachusetts at Amherst, Amherst, MA
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Author Information
James R. McCusker
University of Massachusetts at Amherst, Amherst, MA
Todd Currier
University of Massachusetts at Amherst, Amherst, MA
Kourosh Danai
University of Massachusetts at Amherst, Amherst, MA
Paper No:
DSCC2009-2550, pp. 1-8; 8 pages
Published Online:
September 16, 2010
Citation
McCusker, James R., Currier, Todd, and Danai, Kourosh. "Improved Parameter Estimation by Noise Compensation in the Time-Scale Domain." Proceedings of the ASME 2009 Dynamic Systems and Control Conference. ASME 2009 Dynamic Systems and Control Conference, Volume 1. Hollywood, California, USA. October 12–14, 2009. pp. 1-8. ASME. https://doi.org/10.1115/DSCC2009-2550
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