Title: Observability through delayed measurements: a new approach to state observers design
Abstract: An original approach for the construction of state observers for dynamic systems is presented in this article. New notions of observability (delay-observability and delay-drift-observability), useful for the development of the observer equations and for the convergence proof, are introduced and compared with other standard observability concepts. In particular, it is shown that delay-drift-observability is an extension of the well-known drift-observability property. The construction of the proposed observer is straightforward and does not require any coordinate transformation of the system into a canonical form, which is a common feature of many other approaches. A numerical example is reported, where a system that is not drift-observable is considered. In this case, the proposed observer is easily constructed and performs well.
Publication Year: 2010
Publication Date: 2010-11-01
Language: en
Type: article
Indexed In: ['crossref']
Access and Citation
Cited By Count: 7
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