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DISTRIBUTED ORDER ESTIMATION OF ARX MODEL UNDER
Gan, D. I. E.1,2; Liu, Zhixin1,2
2022
发表期刊SIAM JOURNAL ON CONTROL AND OPTIMIZATION
ISSN0363-0129
卷号60期号:3页码:1519-1545
摘要In this paper, we consider the distributed estimation problem of a linear stochastic system described by an autoregressive model with exogenous inputs when both the system orders and parameters are unknown. We design distributed algorithms to estimate the unknown orders and parameters by combining the proposed local information criterion with the distributed least squares method. The simultaneous estimation for both the system orders and parameters brings challenges for the theoretical analysis. Some analysis techniques, such as double array martingale limit theory, stochastic Lyapunov functions, and martingale convergence theorems are employed. For the case where the upper bounds of the true orders are available, we introduce a cooperative excitation condition, under which the strong consistency of the estimation for the orders and parameters is established. Moreover, for the case where the upper bounds of true orders are unknown, a similar distributed algorithm is proposed to estimate both the orders and parameters, and the corresponding convergence analysis for the proposed algorithm is provided. We remark that our results are obtained without relying on the independency or stationarity assumptions of regression vectors, and the cooperative excitation conditions can show that all sensors can cooperate to fulfill the estimation task even though any individual sensor cannot.
关键词distributed order estimation cooperative excitation condition distributed least squares convergence
DOI10.1137/21M1421362
收录类别SCI
语种英语
资助项目National Key Research and Development Program of China[2018YFA0703800] ; National Natural Science Foundation of China[11688101] ; National Natural Science Foundation of China[U21B6001] ; Natural Science Foundation of Shandong Province[ZR2020ZD26] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDA27000000]
WOS研究方向Automation & Control Systems ; Mathematics
WOS类目Automation & Control Systems ; Mathematics, Applied
WOS记录号WOS:000809668500012
出版者SIAM PUBLICATIONS
引用统计
文献类型期刊论文
条目标识符http://ir.amss.ac.cn/handle/2S8OKBNM/61563
专题系统科学研究所
通讯作者Liu, Zhixin
作者单位1.Chinese Acad Sci, Acad Math & Syst Sci, Key Lab Syst & Control, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Sch Math Sci, Beijing 100190, Peoples R China
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Gan, D. I. E.,Liu, Zhixin. DISTRIBUTED ORDER ESTIMATION OF ARX MODEL UNDER[J]. SIAM JOURNAL ON CONTROL AND OPTIMIZATION,2022,60(3):1519-1545.
APA Gan, D. I. E.,&Liu, Zhixin.(2022).DISTRIBUTED ORDER ESTIMATION OF ARX MODEL UNDER.SIAM JOURNAL ON CONTROL AND OPTIMIZATION,60(3),1519-1545.
MLA Gan, D. I. E.,et al."DISTRIBUTED ORDER ESTIMATION OF ARX MODEL UNDER".SIAM JOURNAL ON CONTROL AND OPTIMIZATION 60.3(2022):1519-1545.
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