Adaptive practical tracking control by output feedback for a class of nonlinear systems |
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Authors: | Fang Shang Yungang Liu Chenghui Zhang |
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Institution: | 1.School of Control Science and Engineering,Shandong University,Jinan,China |
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Abstract: | This paper investigates the problem of adaptive practical tracking control by output feedback for a class of nonlinear systems
in which the nonlinearities are restricted to be upper bounded by a constant plus a polynomial function of the output multiplied
by unmeasured states. To solve the problem, an observer with a dynamic high-gain is first introduced, and then an adaptive
output feedback tracking controller is successfully designed using the universal control methodology. It is shown that all
the states of the closed-loop system are bounded, and the tracking error can be made arbitrarily small by an appropriate choice
of the design parameters after some large enough time. A simulation example is also provided to illustrate the correctness
of the theoretical results. |
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Keywords: | |
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