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Performance recovery under output feedback sampled-data stabilization of a class of nonlinear systems

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1 Author(s)
Khalil, H.K. ; Dept. of Electr. & Comput. Eng., Michigan State Univ., East Lansing, MI, USA

This paper studies sampled-data output feedback control of a class of nonlinear systems. It is shown that the performance of a stabilizing continuous-time state feedback controller can be recovered by a sampled-data output feedback controller when the sampling period is sufficiently small. The output feedback controller uses a deadbeat discrete-time observer to estimate the unmeasured states. Two schemes are proposed to overcome large initial transients when the controller is switched on.

Published in:

Automatic Control, IEEE Transactions on  (Volume:49 ,  Issue: 12 )