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利用粒子滤波算法具有同时估计连续状态和离散状态的特点 ,提出一种可用于混合系统状态监测与诊断的新方法 .给出了该方法的理论推导和设计步骤 ,讨论了在诊断应用中粒子滤波器所遇到的问题 ,并给出了改善的措施 .仿真结果证明用粒子滤波器对混合系统进行监测与诊断是可行的 ,所提的方法对估计结果有比较好的改善 .
The particle filter algorithm is used to estimate the continuous state and the discrete state at the same time, and a new method which can be used in condition monitoring and diagnosis of hybrid systems is presented. The theoretical derivation and design steps of this method are given. The particle filter The problems encountered in the device and the measures to be improved are given.The simulation results show that it is feasible to use the particle filter to monitor and diagnose the hybrid system and the proposed method has a good improvement on the estimation results.