A Semi-Markovian Jumping System Approach to Secure DPC of Nonlinear Networked Unmanned Marine Vehicle Systems with DoS Attack
2021
Abstract In this paper, the problem of secure dynamic positioning control (DPC) for a network-based T-S fuzzy unmanned marine vehicle (UMV) systems is addressed. Firstly, a Takagi-Sugeno (T-S) fuzzy system model is adopted to model the nonlinear dynamics of UMV systems. Then, a semi-Markovian jumping system approach is introduced to describe the unknown DoS attack phenomenon. In order to reduce the communication burden, an event-based communication scheme is proposed. By means of the Lyapunov stability analysis method and semi-Markovian jumping system approach, the sufficient conditions are devised such that the closed-loop dynamic positioning system (DPS) is robust stochastically stable. Furthermore, by solving a few LMIs, the controller gain parameters can be derived. Finally, an illustrative example of networked T-S fuzzy UMV system is established to verify the proposed control algorithm.
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