一类线性离散时间系统的鲁棒故障检测

Robust fault detection for a class of linear discrete-time systems

研究一类受白噪声影响的线性离散系统的鲁棒故障检测滤波问题。设计基于观测器的残差产生器,利用主元子空间算法,对观测器的参数矩阵进行设计。算例验证了提出方法的有效性。

The problem of fault detection is dealt with for a class of linear discrete-time systems, An observer-based fault detection filter （FDF） is designed as a residual generator, and the parameter matrices can be designed by using the subspace identifi cation method. Finally, a numerical example is given to show the effectiveness of the proposed approach.