Title :
Exponential stability of regularized moving horizon observer for N-detectable nonlinear systems
Author :
Sui, Dan ; Johansen, Tor Arne
Author_Institution :
Dept. of Eng. Cybern., Norwegian Univ. of Sci. & Technol., Trondheim, Norway
Abstract :
A moving horizon observer is analyzed for nonlinear N-detectable discrete-time systems. Conditions for global exponential stability are given. The algorithm can be implemented with regularization to ensure graceful degradation of performance when the data are not exciting. This regularization relies on monitoring an estimate of a Hessian-like matrix and conditions for local exponential convergence are given.
Keywords :
Hessian matrices; asymptotic stability; nonlinear control systems; observers; Hessian-like matrix; exponential convergence; exponential stability; horizon observer; nonlinear N-detectable discrete-time systems; Convergence; Observers; Stability criteria; Symmetric matrices; Vectors; Yttrium;
Conference_Titel :
Control and Automation (ICCA), 2011 9th IEEE International Conference on
Conference_Location :
Santiago
Print_ISBN :
978-1-4577-1475-7
DOI :
10.1109/ICCA.2011.6137886
