Subspace Identification of Closed-Loop EIV System Based on Instrumental Variables Using Orthoprojection

被引：3

作者：

Li, Youfeng ^{[1
]}

Xiong, Zenggang ^{[1
]}

Ye, Conghuan ^{[1
]}

Zhang, Xuemin ^{[1
]}

Xu, Fang ^{[1
]}

Zhao, Xiaochao ^{[1
]}

机构：

[1] Hubei Engn Univ, Sch Comp & Informat Sci, Xiaogan 432000, Peoples R China

来源：

JOURNAL OF SIGNAL PROCESSING SYSTEMS FOR SIGNAL IMAGE AND VIDEO TECHNOLOGY | 2021年 / 93卷 / 2-3期

基金：

中国国家自然科学基金;

关键词：

Subspace identification; Closed-loop system; EIV (errors-in-variables) model; Instrumental variables; MODEL IDENTIFICATION; ALGORITHMS;

D O I：

10.1007/s11265-020-01618-y

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

This paper proposes a subspace identification method for closed-loop EIV (errors-in-variables) problems based on instrumental variables . First, a unified framework is derived, and then the reason is discussed why some existing subspace methods based on instrumental variables could be biased under closed-loop conditions. Afterwards a remedy is given to eliminate the bias by simply replacing the instrumental variable. Using orthogonal projection, the resulting instrumental variable method is very simple and easy to extend. In addition, simulation studies illustrate the effects of different instrumental variables.

引用

页码：345 / 355

页数：11

共 50 条

[1] Subspace Identification of Closed-Loop EIV System Based on Instrumental Variables Using Orthoprojection
Youfeng Li
Zenggang Xiong
Conghuan Ye
Xuemin Zhang
Fang Xu
Xiaochao Zhao
[J]. Journal of Signal Processing Systems, 2021, 93 : 345 - 355
[2] Closed-Loop Subspace Identification Algorithm of EIV Model Based on Orthogonal Decomposition and PCA
Wang, Jianguo
Guo, Yong
Wang, Juanjuan
[J]. ASIASIM 2012, PT I, 2012, 323 : 55 - 65
[3] Closed-loop system identification using subspace-based methods
Zhao, Y
Westwick, D
[J]. CCECE 2003: CANADIAN CONFERENCE ON ELECTRICAL AND COMPUTER ENGINEERING, VOLS 1-3, PROCEEDINGS: TOWARD A CARING AND HUMANE TECHNOLOGY, 2003, : 1727 - 1730
[4] Subspace-based closed-loop system identification using polyspectral analysis
Zhou, Y
Tugnait, JK
[J]. PROCEEDINGS OF THE IEEE SIGNAL PROCESSING WORKSHOP ON HIGHER-ORDER STATISTICS, 1999, : 62 - 65
[5] Closed-loop system identification of ankle dynamics using a subspace method with reference input as instrumental variable
Zhao, Y.
Ludvig, D.
Kearney, R. E.
[J]. 2008 AMERICAN CONTROL CONFERENCE, VOLS 1-12, 2008, : 619 - 624
[6] Subspace Identification of Closed-loop Errors-in-variables Systems
Geng, Li-Hui
Ayele, Terefe Bayisa
Liu, Jin-Cang
[J]. PROCEEDINGS OF THE 32ND 2020 CHINESE CONTROL AND DECISION CONFERENCE (CCDC 2020), 2020, : 1562 - 1566
[7] Closed-loop Subspace Identification Based on KPLS
Lin Wen-yi
Gu Yong
Xie Lei
[J]. 2013 32ND CHINESE CONTROL CONFERENCE (CCC), 2013, : 1843 - 1848
[8] A subspace identification of closed-loop system by orthogonal decomposition
Katayama, T
Kawauchi, H
Picci, G
[J]. PROCEEDINGS OF THE 40TH IEEE CONFERENCE ON DECISION AND CONTROL, VOLS 1-5, 2001, : 3922 - 3923
[9] Instrumental variable methods for closed-loop system identification
Gilson, M
Van den Hof, P
[J]. AUTOMATICA, 2005, 41 (02) : 241 - 249
[10] Closed-loop subspace identification using the parity space
Wang, J
Qin, SJ
[J]. AUTOMATICA, 2006, 42 (02) : 315 - 320

← 1 2 3 4 5 →