A new noniterative frequency domain parameter estimation technique is proposed. It is based on a weighted total least squares approach, starting from multiple input multiple output frequency response functions. One of the specific advantages of the technique lies in the very stable identification of the system poles as a function of the specified system order, leading to easy-to-interpret stabilization diagrams. This implies a potential for automating the method and to apply it to “difficult” estimation cases. Several real-life case studies are discussed, one related to holographic modal analysis in the medium frequency range, one to the modal testing of a fully trimmed vehicle.
Application of a Fast-Stabilizing Frequency Domain Parameter Estimation Method
Contributed by the Dynamic Systems and Control Division for publication in the JOURNAL OF DYNAMIC SYSTEMS, MEASUREMENT, AND CONTROL. Manuscript received by the Dynamic Systems and Control Division January 31, 2001. Associate Editor: S. Fassois.
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Van der Auweraer, H., Guillaume , P., Verboven, P., and Vanlanduit, S. (January 31, 2001). "Application of a Fast-Stabilizing Frequency Domain Parameter Estimation Method ." ASME. J. Dyn. Sys., Meas., Control. December 2001; 123(4): 651–658. https://doi.org/10.1115/1.1410369
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