Abstract | ||
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We are considering the problem of observer design for a general class of state-affine systems in presence of output delay and sampling. Two novelties characterize the considered class of systems: (i) the state equation is subject to output injection involving future output values (not accessible to measurement); (ii) the injected output values come in the state equation not only through a driving term but also through the state matrix. These novel characteristics entail the loss of the system state-affine nature and lead to a new observer design problem never investigated so far. The solution we develop in this paper is a sampled-data based observer of Kalman-like type, augmented with inter-sample predictors and signal saturations. Using both Lyapunov and small-gain arguments, we show that the observer is exponentially convergent for sufficiently small sampling interval and delay, provided an observability condition is satisfied. |
Year | DOI | Venue |
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2020 | 10.1080/00207179.2019.1569263 | INTERNATIONAL JOURNAL OF CONTROL |
Keywords | DocType | Volume |
Nonlinear systems, state observer, output delay, sampled measurements | Journal | 93 |
Issue | ISSN | Citations |
12 | 0020-7179 | 0 |
PageRank | References | Authors |
0.34 | 15 | 5 |
Name | Order | Citations | PageRank |
---|---|---|---|
Fabien Cuny | 1 | 0 | 0.34 |
Rachid Lajouad | 2 | 0 | 0.68 |
F. Giri | 3 | 110 | 29.41 |
Tarek Ahmed-Ali | 4 | 245 | 26.90 |
Vincent Van Assche | 5 | 54 | 7.38 |