| State Estimation of a Class of Hybrid Systems in the Presence of Unknown Mode Transitions |
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| 作者姓名： | WANG Wen-Hui PENG Zhao ZHOU Dong-Hua |
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| 作者单位： | Department of Automation，Tsinghua University，Beijing 100084 |
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| 基金项目： | Supported by National Natural Science Foundation of P.R.China (60025307,60234010) and the National “973” Program of P.R.China (2002CB312200) |
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| 摘 要： | Since the state of hybrid systems is determined by interacting continuous and discrete dynamics,the state estimation of hybrid systems becomes a challenging problem.It is more com- plicated when the discrete mode transition information is not available,and the modes of hybrid systems are nonlinear stochastic dynamic systems.To address this problem,this paper proposes a novel hybrid strong tracking filter (HSTF) for state estimation of a class of hybrid nonlinear stochas- tic systems with unknown mode transition,the method for designing HSTF is presented.The HSTF can estimate the continuous state and discrete mode accurately with unknown mode transition in- formation,and the estimation of hybrid states is robust against the initial state.Simulation results illustrate the effectiveness of the proposed approach.
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State Estimation of a Class of Hybrid Systems in the Presence of Unknown Mode Transitions |
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| WANG Wen-Hui PENG Zhao ZHOU Dong-Hua.State Estimation of a Class of Hybrid Systems in the Presence of Unknown Mode Transitions[J].Acta Automatica Sinica,2005(3). |
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| Authors: | WANG Wen-Hui PENG Zhao ZHOU Dong-Hua |
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| Abstract: | Since the state of hybrid systems is determined by interacting continuous and discrete dynamics,the state estimation of hybrid systems becomes a challenging problem.It is more com- plicated when the discrete mode transition information is not available,and the modes of hybrid systems are nonlinear stochastic dynamic systems.To address this problem,this paper proposes a novel hybrid strong tracking filter (HSTF) for state estimation of a class of hybrid nonlinear stochas- tic systems with unknown mode transition,the method for designing HSTF is presented.The HSTF can estimate the continuous state and discrete mode accurately with unknown mode transition in- formation,and the estimation of hybrid states is robust against the initial state.Simulation results illustrate the effectiveness of the proposed approach. |
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| Keywords: | Hybrid systems hybrid state estimate hybrid strong tracking filter |
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