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On the Use of the Time-Integrals of the Output in Observer Design for Nonlinear Autonomous Systems.
- Source :
-
IEEE Transactions on Automatic Control . Jan2022, Vol. 67 Issue 1, p336-343. 8p. - Publication Year :
- 2022
-
Abstract
- The goal of this article is to show that the observation scheme recently proposed for linear systems by Menini et al. in 2019, achieving good performance in the presence of a high-frequency measurement disturbance, can be adapted to be used for nonlinear autonomous systems. The design is based on the use of the time-integrals of the measured output and requires the availability of a state observer able to provide a rough estimate of the state; the proposed scheme can be then understood as an observer postprocessing algorithm. For the implementation of the proposed scheme, the time-integrals of the output are required to express as functions of the state of the system. Such functions are called directional antiderivatives; in the article, conditions to guarantee their existence and methods for their computation, in closed-form or by approximation, are resumed. The performance of the proposed observation scheme is illustrated through an example. [ABSTRACT FROM AUTHOR]
- Subjects :
- *NONLINEAR systems
*LINEAR systems
*KALMAN filtering
Subjects
Details
- Language :
- English
- ISSN :
- 00189286
- Volume :
- 67
- Issue :
- 1
- Database :
- Academic Search Index
- Journal :
- IEEE Transactions on Automatic Control
- Publication Type :
- Periodical
- Accession number :
- 154764254
- Full Text :
- https://doi.org/10.1109/TAC.2021.3083551