47 適応フィルタ及び適宜重み付け手法(AF-AWP)を用いた構造物のシステム同定手法の提案とその応用

概要

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System identification can be broadly classified as frequency-domain methods and time-domain methods. The extended Kalman filter (EKF), that is a time-domain method, have recently been developed in identification of structural system, and many kind improved procedures of it have been proposed too. A feature of EKF is that unknown parameters are estimated using input and output data. But, in case of many unknown parameters, EKF need to use long-length data, and include the problem that divergence of error covariance or unknown parameters depend upon these initial guesses. In this paper, the improved procedure resolving these problems, that named adaptive filtering and appropriately weighted procedure (AF-AWP), are proposed and was compared with EKF, EK-WGI procedure and adaptive EKF procedure in numerical study.
一般社団法人日本建築学会の論文
1998-03-20