부산대학교 도서관

In this paper, the network-based sliding mode observer is investigated for a class of discrete nonlineartime-delay systems with stochastic communication protocol. The stochastic communication protocol is adopted toregulate the transmission order of the measurements from multiple sensor nodes, which could effectively avoid datacollisions. Under the scheduling of communication protocol, only one sensor node is allowed to get access to theshared communication network at each time step for data transmission. Moreover, the stochastic communicationprotocol is governed by a Markov chain, which converts the protocol-constrained system into a Markovian jumpsystem. It is the purpose to design a sliding mode observer such that, with the stochastic communication protocol,the trajectories of the estimation error system are driven into a band of the sliding surface and, in subsequent time,the sliding motion is mean-square asymptotically stable. By solving a minimization problem, the sufficient conditions for the desired sliding mode observer are established. Finally, an illustrative example is given to demonstratethe effectiveness of the proposed algorithm.