Results 191 to 200 of about 28,524 (229)

Subspace identification for a stochastic model of bubonic plague

2016 35th Chinese Control Conference (CCC), 2016
Based on the model of bubonic plague, the corresponding stochastic model with stochastic disturbances is given. According to the data of bubonic plague from the World Health Organization, the coefficient matrices and noise intensity of the model are obtained by subspace identification method.
Miao Yu, Jianchang Liu, Lichun Zhao, Honghai Wang, Yu Zhang   +4 more
openaire   +1 more source

Machine learning-based stochastic subspace identification method for structural modal parameters

Engineering structures, 2023
Dawei Liu, Y. Bao, Hui Li
semanticscholar   +1 more source

Operational Modal Analysis Using a Fast Stochastic Subspace Identification Method

Stochastic subspace identification methods are an efficient tool for system identification of mechanical systems in Operational Modal Analysis, where modal parameters (natural frequencies, damping ratios, mode shapes) are estimated from measured ambient vibration data of a structure.
Döhler, Michael, Andersen, Palle, Mevel, Laurent   +2 more
openaire   +2 more sources

Operational modal analysis under harmonic excitation using Ramanujan subspace projection and stochastic subspace identification

Journal of Sound and Vibration, 2022
Mingqiang Xu, F. Au, Shuqing Wang, Huiyuan Tian   +3 more
semanticscholar   +1 more source

Stochastic subspace identification of linear systems with observation outliers

21st Mediterranean Conference on Control and Automation, 2013
We propose a diagnostic for the state space model fitting time series formed by deleting observations from the data and measuring the change in the estimates of the parameters. A method is proposed for distinguishing an observational outlier from an innovational one.
openaire   +1 more source

Modal Parameter Identification of a Quayside Container Crane Based on Data-Driven Stochastic Subspace Identification

, 2021
Xiuzhong Xu, Xu Zhang, Wei-dong Zhu, Xiancheng Gu   +3 more
semanticscholar   +1 more source

Automated operational modal analysis of an end-supported pontoon bridge using covariance-driven stochastic subspace identification and a density-based hierarchical clustering algorithm

Bridge Maintenance, Safety, Management, Life-Cycle Sustainability and Innovations, 2021
K. Kvåle, O. Øiseth
semanticscholar   +1 more source

A Note on LQ Decomposition in Stochastic Subspace Identification

2010
In this paper, we consider the role of LQ decomposition in the realization-based subspace identification method for discrete-time stochastic systems as a continuation of our earlier work [6] in deterministic setting. Under the assumption that the past horizon of the data matrix is infinite, we reveal a nice block lower triangular structure of a certain
openaire   +1 more source

Uncertainty bounds on modal parameters obtained stochastic subspace identification

2008
The modal parameters of a structure that are estimated from ambient vibration measurements are always subject to bias and variance errors. In this paper, it is discussed how part of the bias errors can be removed and how the variance errors can be estimated from a single ambient vibration test.
Reynders, E., Pintelon, Rik, De Roeck, Guido   +2 more
openaire   +1 more source

Reliable truncation parameter selection and model order estimation for stochastic subspace identification

Journal of the Franklin Institute
Khashayar Bayati, K. Umapathy, S. Beheshti   +2 more
semanticscholar   +1 more source