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Indexed by:期刊论文

Date of Publication:2017-12-01

Journal:SCIENCE CHINA-INFORMATION SCIENCES

Included Journals:EI、SCIE、Scopus

Volume:60

Issue:12

ISSN No.:1674-733X

Key Words:stochastic nonlinear systems; adaptive control; backstepping; interconnected subsystems; tracking control

Abstract:The problem of decentralized adaptive output tracking control of a class of interconnected stochastic nonlinear systems is considered. In the control design, decentralized state observers and backstepping techniques are applied. To eliminate the influences of interactions with other subsystems, a differentiable function is employed. It is shown that the designed local adaptive controllers can ensure that all the signals in the closed-loop system are bounded in probability. Furthermore, the tracking errors can be limited to a small residual set around the origin in the fourth moment sense and can be adjusted by choosing suitable design parameters.