Abstract
Processing signals from open-loop system realizations can replace real-time operation using actuators in the design of closed-loop eigenstructures. One merit of the signal processing-based implementation is that it, in principle, allows virtual compensators of user-defined model order since the closed-loop systems are not to be realized during physical testing. The present paper explores the implication of the virtual compensator order in terms of the Fisher information on unknown parameters to be estimated in a model updating context. A numerical example with a structural system of engineering interest is presented that demonstrates the basic points outlined in the paper.
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Acknowledgement
The authors gratefully acknowledge the Danish Hydrocarbon Research and Technology Centre (DHRTC) for the financial support.
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Hansen, T.N., Jensen, M.S., Ulriksen, M.D., Bernal, D. (2020). On the Model Order in Parameter Estimation Using Virtual Compensators. In: Wahab, M. (eds) Proceedings of the 13th International Conference on Damage Assessment of Structures. Lecture Notes in Mechanical Engineering. Springer, Singapore. https://doi.org/10.1007/978-981-13-8331-1_36
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DOI: https://doi.org/10.1007/978-981-13-8331-1_36
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