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How much uncertainty can be dealt with by feedback?
Xie, LL; Guo, L
2000-12-01
Source PublicationIEEE TRANSACTIONS ON AUTOMATIC CONTROL
ISSN0018-9286
Volume45Issue:12Pages:2203-2217
AbstractFeedback is used primarily for reducing the effects of the plant uncertainty on the performance of control systems, and as such understanding the following questions is of fundamental importance: How much uncertainty can be dealt with by feedback? What are the limitations of feedback? How does the feedback performance depend quantitatively on the system uncertainty? How can the capability of feedback be enhanced if a priori information about the system structure is available? As a starting point toward answering these questions, a typical class of first-order discrete-time dynamical control systems with both unknown nonlinear structure and unknown disturbances is selected for our investigation, and some concrete answers are obtained in this paper. In particular, we find that in the space of unknown nonlinear functions, the generalized Lipschitz norm is a suitable measure for characterizing the size of the structure uncertainty, and that the maximum uncertainty that can be dealt with by the feedback mechanism is described by a ball with radius 3/2 + root2 in this normed function space.
Keywordadaptive control feedback nonlinear robust control stability stochastic systems uncertainty
Language英语
WOS Research AreaAutomation & Control Systems ; Engineering
WOS SubjectAutomation & Control Systems ; Engineering, Electrical & Electronic
WOS IDWOS:000166570300001
PublisherIEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Citation statistics
Cited Times:109[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.amss.ac.cn/handle/2S8OKBNM/15776
Collection中国科学院数学与系统科学研究院
AffiliationChinese Acad Sci, Inst Syst Sci, Beijing 100080, Peoples R China
Recommended Citation
GB/T 7714
Xie, LL,Guo, L. How much uncertainty can be dealt with by feedback?[J]. IEEE TRANSACTIONS ON AUTOMATIC CONTROL,2000,45(12):2203-2217.
APA Xie, LL,&Guo, L.(2000).How much uncertainty can be dealt with by feedback?.IEEE TRANSACTIONS ON AUTOMATIC CONTROL,45(12),2203-2217.
MLA Xie, LL,et al."How much uncertainty can be dealt with by feedback?".IEEE TRANSACTIONS ON AUTOMATIC CONTROL 45.12(2000):2203-2217.
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