Weighted least squares based recursive parametric identification for the submodels of a PWARX system
Weighted least squares based recursive parametric identification for the submodels of a PWARX system
复制标题
PWARX 系统子模型的基于加权最小二乘的递归参数识别
DOI:
10.1016/j.automatica.2012.03.015
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发表时间:
2012-06
期刊:
影响因子:
6.4
通讯作者:
Tong Zhou
中科院分区:
文献类型:
--
作者:
Wenxiao Zhao;Tong Zhou
A piecewise affine autoregressive system with exogenous inputs (PWARX) is composed of a finite number of ARX subsystems, each of which corresponds to a polyhedral partition of the regression space. In this work a weighted least squares (WLS) estimator is suggested to recursively estimate the parameters of the ARX submodels, in which a sequence of kernel functions are introduced. Conditions on the input signal and the PWARX system are imposed to guarantee the almost sure convergence of the WLS estimates. Some numerical examples are included to illustrate performances of the algorithm.
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DOI:
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DOI:
10.1109/cdc.2009.5400648
发表时间:
2009-12
期刊:
Proceedings of the 48h IEEE Conference on Decision and Control (CDC) held jointly with 2009 28th Chinese Control Conference
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