双通道自适应Lattice滤波器及其在故障检测中的应用  

Adaptive Bi Channel Lattice Filter and Its Application in Fault Detection

作　　者：萧德云[1] 李渭华[1] 

机构地区：[1]清华大学自动化系

出　　处：《控制与决策》1998年第3期277-280,285,共5页Control and Decision

基　　金：国家自然科学基金;博士学科点专项科研基金

摘　　要：推导出一种双通道自适应Ｌａｔｔｉｃｅ滤波器算法，并将它用于动态系统的故障检测。这种故障检测方案不需要建立准确的数学模型，只要根据系统的输入输出数据，利用Ｌａｔｔｉｃｅ滤波器算法生成故障残差序列，再对故障残差序列进行统计检验，可实现动态系统的故障检测。该方法用于一个仿真的直流伺服系统的故障检测，实验效果是满意的。An adaptive bi channel Lattice filter algorithm is derived, and it is applied to fault detection for dynamic systems. The advantage of this fault detection scheme is that accurate mathematical model of unknown system are not required for the purpose of fault detection. In advance, the fault residual series is generated from the system input and measured output using the proposed Lattice filter algorithm. Then the fault detection is carried out by performing statisitical test on the fault residual series. An application of this approach to detect fault in a simulated DC servo system has been made, and satisfactory result is obtained.

关 键 词：故障检测 Lattice滤波器 自适应滤波器 

分 类 号：TN713[电子电信—电路与系统] TP277[自动化与计算机技术—检测技术与自动化装置]