Variance-Reduced Particle Filters for Structural System Identification Problems

Chowdhury, Roy S and Roy, D and Vasu, RM (2013) Variance-Reduced Particle Filters for Structural System Identification Problems. In: JOURNAL OF ENGINEERING MECHANICS-ASCE, 139 (2). pp. 210-218.

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Abstract

A few variance reduction schemes are proposed within the broad framework of a particle filter as applied to the problem of structural system identification. Whereas the first scheme uses a directional descent step, possibly of the Newton or quasi-Newton type, within the prediction stage of the filter, the second relies on replacing the more conventional Monte Carlo simulation involving pseudorandom sequence with one using quasi-random sequences along with a Brownian bridge discretization while representing the process noise terms. As evidenced through the derivations and subsequent numerical work on the identification of a shear frame, the combined effect of the proposed approaches in yielding variance-reduced estimates of the model parameters appears to be quite noticeable. DOI: 10.1061/(ASCE)EM.1943-7889.0000480. (C) 2013 American Society of Civil Engineers.

Item Type:	Journal Article
Publication:	JOURNAL OF ENGINEERING MECHANICS-ASCE
Publisher:	ASCE-AMER SOC CIVIL ENGINEERS
Additional Information:	Copyright for this article belongs to the ASCE-AMER SOC CIVIL ENGINEERS, USA.
Keywords:	Directed bootstrap filter; Gain-based direction; Quasi-Newton direction; Quasi-Monte Carlo simulations; Structural system identification
Department/Centre:	Division of Mechanical Sciences > Civil Engineering Division of Physical & Mathematical Sciences > Instrumentation Appiled Physics
Date Deposited:	29 Apr 2013 09:06
Last Modified:	29 Apr 2013 09:06
URI:	http://eprints.iisc.ac.in/id/eprint/46467

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