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http://dx.doi.org/10.12989/sem.2011.38.3.315

The combined deterministic stochastic subspace based system identification in buildings  

Bakir, Pelin Gundes (Department of Civil Engineering, Istanbul Technical University)
Publication Information
Structural Engineering and Mechanics / v.38, no.3, 2011 , pp. 315-332 More about this Journal
Abstract
The Combined Deterministic Stochastic Subspace based System Identification Technique (CDSSSIT) is a powerful input-output system identification technique which is known to be always convergent and numerically stable. The technique determines a Kalman state sequence from the projection of the output-input data. The state space matrices are determied subsequently from this Kalman state sequence using least squares. The objective of this paper is to examine the efficiency of the CDSSSIT in identifying the modal parameters (frequencies and mode shapes) of a stiff structure. The results show that the CDSSSIT predicts the modal parameters of stiff buildings quite accurately but is very sensitive to the location of sensors.
Keywords
system identification; optimal sensor placement; structural health monitoring; subspace based system identification;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
Times Cited By Web Of Science : 1  (Related Records In Web of Science)
Times Cited By SCOPUS : 1
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