Observability at an initial state for polynomial systems
Observability at an initial state for polynomial systems
复制标题
多项式系统初始状态的可观测性
DOI:
10.1016/j.automatica.2013.01.020
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发表时间:
2013
期刊:
影响因子:
6.4
通讯作者:
T. Ohtsuka
中科院分区:
文献类型:
--
作者:
Y. Kawano;T. Ohtsuka
We consider observability at an initial state for polynomial systems. When testing for local observability for nonlinear systems, the observability rank condition based on the inverse function theorem is commonly used. However, the rank condition is a sufficient condition, and we cannot test for global observability using the rank condition. In this paper, first we derive necessary and sufficient conditions for global observability at an initial state for continuous-time polynomial systems. Then, necessary and sufficient conditions for local observability are derived from one of the global observability conditions using the localization of a polynomial ring. Using the same procedure, we derive both global and local observability conditions for discrete-time polynomial systems. Each condition is characterized by a finite set of equations, since polynomial rings are Noetherian. Finally, examples demonstrate the proposed criteria for testing for observability.
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DOI:
--
发表时间:
2004
期刊:
IEEE Conference on Decision and Control
影响因子:
--
作者:
B. Tibken
通讯作者:
B. Tibken
影响因子:
2.6
作者:
D. Nešić
通讯作者:
D. Nešić
影响因子:
2.1
作者:
NIJMEIJER, H
通讯作者:
NIJMEIJER, H
影响因子:
6.8
作者:
T. Ohtsuka
通讯作者:
T. Ohtsuka
DOI:
--
发表时间:
1993
期刊:
影响因子:
--
作者:
K. Forsman
通讯作者:
K. Forsman