Online Simultaneous State and Parameter Estimation for Second-order Nonlinear Systems

Fuente: arXiv
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Main Author: Kamalapurkar, Rushikesh
Format: Preprint
Published: 2017
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author Kamalapurkar, Rushikesh
author_facet Kamalapurkar, Rushikesh
contents In this paper, a concurrent learning based adaptive observer is developed for a class of second-order nonlinear time-invariant systems with uncertain dynamics. The developed technique results in simultaneous online state and parameter estimation. A Lyapunov-based analysis is used to show that the state and parameter estimation errors are uniformly ultimately bounded. As opposed to persistent excitation which is required for parameter estimation in traditional adaptive control methods, the developed technique only requires excitation over a finite time interval.
format Preprint
id arxiv_https___arxiv_org_abs_1703_07068
institution arXiv
publishDate 2017
record_format arxiv
spellingShingle Online Simultaneous State and Parameter Estimation for Second-order Nonlinear Systems
Kamalapurkar, Rushikesh
Systems and Control
In this paper, a concurrent learning based adaptive observer is developed for a class of second-order nonlinear time-invariant systems with uncertain dynamics. The developed technique results in simultaneous online state and parameter estimation. A Lyapunov-based analysis is used to show that the state and parameter estimation errors are uniformly ultimately bounded. As opposed to persistent excitation which is required for parameter estimation in traditional adaptive control methods, the developed technique only requires excitation over a finite time interval.
title Online Simultaneous State and Parameter Estimation for Second-order Nonlinear Systems
topic Systems and Control
url https://arxiv.org/abs/1703.07068