Observers for Differential-Algebraic Systems with Lipschitz or Monotone Nonlinearities

Berger, Toby; Lanza, Lukas

doi:10.1007/978-3-030-53905-4_9

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(Generalized) Monotone Nonlinearities1

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2024

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“…Examples of a nonlinear LCR circuit from [73] and a rectangular system with exponential nonlinearity are demonstrated. Recent work [3] somewhat unifies the design of descriptor observers for Lipschitz and monotone using the behavioral framework. The authors have supplied ample conditions that ensure the presence of asymptotic observers and state estimators.…”

Section: (Generalized) Monotone Nonlinearitiesmentioning

confidence: 99%

Observer Design for Nonlinear Descriptor Systems: A Survey on System Nonlinearities

Tripathi,

Moysis,

Gupta

et al. 2024

Circuits Syst Signal Process

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In general, the construction of observers for nonlinear descriptor systems depends on the solvability of a linear matrix inequality involving system matrices, and it is based on the system’s nonlinearity. Therefore, the type of nonlinearity present in the system heavily affects the observer design process. There are significant developments in the literature for observer design for descriptor systems with various types of nonlinearity. Motivated by this, the current work reviews the literature on observer design for nonlinear descriptor systems with an extensive discussion on the type of nonlinearities that are considered. Here, an analysis and the comparison on the most common nonlinearities is presented, providing a roadmap to all researchers in the field. Furthermore, less common nonlinearities have been identified, presenting under-explored areas within the literature, and can open new domains for future research.

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Section: (Generalized) Monotone Nonlinearitiesmentioning

confidence: 99%