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提出了系统影响矩阵的概念，在此基础上提出了故障诊断的一种新方法——基于影响矩阵的诊断方法。该方法的核心是系统影响方程和系统测量方程。系统测量方程描述系统的输出（测量）特性；影响方程描述系统的各部件对各输出（测量）的影响特性。该方法能将测量信号的分析处理和故障的定位很好地结合起来。
The concept of system influence matrix is put forward. Based on the above, a new method of fault diagnosis is proposed, which is based on the influence matrix. The core of this method is the system influence equation and the system measurement equation. System measurement equations describe the system’s output (measurement) characteristics; the influence equation describes the system’s various components of the output (measurement) impact characteristics. This method can well combine the analysis of measurement signals and the localization of faults.