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Quantized output feedback control design for a class of nonlinear systems with unmeasured states dependent growth

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3 Author(s)
Man Yongchao ; School of Control Science and Engineering, Shandong University, Jinan 250061, P.R. China ; Liu Yungang ; Yan Xuehua

This paper considers the quantized output feedback control design for a class of uncertain nonlinear systems. Different from the literature [11], the nonlinear growth of the systems under investigation depends on the unmeasured states, which makes the observer design in [11] inapplicable, and renders the performance analysis for the closed-loop system more complex and difficult. First, a new high-gain observer is introduced to reconstruct the unmeasured states. Then, by applying the set-valued maps and recursive control design method in [11], a quantized output feedback controller is designed. Lastly, by the cyclic-small-gain theorem and dynamic quantization strategy, a sufficient condition is given to guarantee that all states of the closed-loop system are bounded and furthermore output can be ultimately arbitrarily small.

Published in:

Control Conference (CCC), 2012 31st Chinese

Date of Conference:

25-27 July 2012