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Autores principales: Yi, Bowen, Fang, Leyan, Ortega, Romeo
Formato: Preprint
Publicado: 2026
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Acceso en línea:https://arxiv.org/abs/2603.09076
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author Yi, Bowen
Fang, Leyan
Ortega, Romeo
author_facet Yi, Bowen
Fang, Leyan
Ortega, Romeo
contents Parameter estimation-based observer (PEBO) is a recently developed constructive tool to design state observers for nonlinear systems. It reformulates the state estimation problem as one of online parameter identification, effectively addressing many open estimation challenges in practical applications. The feasibility of a PEBO design relies on two fundamental properties: transformability and identifiability. The former pertains to the existence of an injective solution to a suitable partial differential equation, whereas the latter characterizes the uniqueness of the parameterization induced by the resulting nonlinear regression model. In this paper, we analyze the existence of PEBOs for general nonlinear systems by studying these two properties in detail and by providing sufficient conditions under which they hold.
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publishDate 2026
record_format arxiv
spellingShingle On the solvability of parameter estimation-based observers for nonlinear systems
Yi, Bowen
Fang, Leyan
Ortega, Romeo
Optimization and Control
Systems and Control
Parameter estimation-based observer (PEBO) is a recently developed constructive tool to design state observers for nonlinear systems. It reformulates the state estimation problem as one of online parameter identification, effectively addressing many open estimation challenges in practical applications. The feasibility of a PEBO design relies on two fundamental properties: transformability and identifiability. The former pertains to the existence of an injective solution to a suitable partial differential equation, whereas the latter characterizes the uniqueness of the parameterization induced by the resulting nonlinear regression model. In this paper, we analyze the existence of PEBOs for general nonlinear systems by studying these two properties in detail and by providing sufficient conditions under which they hold.
title On the solvability of parameter estimation-based observers for nonlinear systems
topic Optimization and Control
Systems and Control
url https://arxiv.org/abs/2603.09076