Nonlinear observer for simultaneous states and unknown parameter estimation

作者：Vijayaraghavan Krishna^*

来源：International Journal of Control, 2013, 86(12): 2263-2273.

DOI：10.1080/00207179.2013.811291

• nonlinear observer
• parameter estimation
• LMI

This paper presents the design of an observer for the simultaneous estimation of states and unknown parameter for a class of nonlinear systems whose nonlinearity satisfies a bounded Jacobian condition. The paper presents two alternate observers based on the structure of the system. The conditions for the existence of these observers can be expressed as a linear matrix inequality and solved using standard solvers. The case of time-varying parameter and multiple unknown parameter have also been investigated. The use of the developed methodology is demonstrated through illustrative examples.

• 出版日期2013