Observability and Forward–Backward Observability of Discrete-Time Nonlinear Systems

被引：1
|
作者：
Francesca Albertini
Domenico D'Alessandro
机构：
[1] Dipartimento di Matematica pura ed applicata,
[2] Universitá di Padova,undefined
[3] 35100 Padova,undefined
[4] Italy. albertin@math.unipd.it.,undefined
[5] Department of Mathematics,undefined
[6] Iowa State University,undefined
[7] Ames,undefined
[8] Iowa 50011,undefined
[9] U.S.A. daless@iastate.edu.,undefined
来源：
Mathematics of Control, Signals and Systems | 2002年 / 15卷
关键词：
Key words. Discrete-time systems, Observability, Geometric methods, Invertible models.;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
 In this paper we study the observability properties of nonlinear discrete-time systems. Two types of contributions are given. First we present observability criteria in terms of appropriate codistributions. For particular, but significant, classes of systems we provide criteria that require only a finite number of computations. Then we consider invertible systems (which includes discrete-time models obtained by sampling continuous-time systems) and prove that the weaker notion of forward–backward observability is equivalent to the stronger notion of (forward) observability.
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页码：275 / 290
页数：15
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