DOI: 10.3724/SP.J.1004.2013.02154

Acta Automatica Sinica (自动化学报) 2013/39:12 PP.2154-2159

Semiglobal Stabilization via Output-feedback for a Class of Uncertain Nonlinear Systems

This paper considers the semiglobal stabilization via output-feedback for a class of uncertain nonlinear systems. Different from the existing results, the systems under investigation possess more serious nonlinearities and unknown control coe±cients which substantially increase the di±culty of output-feedback controller design. Combining the backstepping method and output-feedback domination approach, a semiglobal stabilizing controller is explicitly given, which can guarantee that the closed-loop system achieves the semiglobal asymptotic stability under the appropriate choice of design parameter. A simulation example validates the theoretical results and the proposed approach.

Key words:Nonlinear systems, unknown control coefficients, semiglobal stabilization, output-feedback

ReleaseDate:2014-07-21 17:04:32

Funds:National Natural Science Foundations of China (61325016, 61273084, 61233014), Natural Science Foundation for Distinguished Young Scholar of Shandong Province of China (JQ200919), and the Independent Innovation Foundation of Shandong University (2012JC014)