Journal
MECHANICAL SYSTEMS AND SIGNAL PROCESSING
Volume 24, Issue 1, Pages 90-105Publisher
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ymssp.2009.03.011
Keywords
Operational modal analysis; Harmonic disturbances; Continuous-time modelling; Multivariate
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Funding
- Fund for Scientific Research (FWO-Vlaanderen)
- Flemish Government
- Belgian Government
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Recently [R. Pintelon, B. Peeters, P. Guillaume, Continuous-time operational modal analysis in the presence of harmonic disturbances, Mechanical Systems and Signal Processing 22 (5) (2008) 1017-1035] a single-output algorithm for continuous-time operational modal analysis in the presence of harmonic disturbances with time-varying frequency has been developed. This paper extends the results of Pintelon, et al. [Continuous-time operational modal analysis in the presence of harmonic disturbances, Mechanical Systems and Signal Processing 22 (5) (2008) 1017-1035] to multi-output signals. The statistical performance of the proposed maximum likelihood estimator is illustrated on simulations and real helicopter data. (C) 2009 Elsevier Ltd. All rights reserved.
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