基于灰色关联度分析的模拟电路故障诊断

一般情况下，模拟电路中存在着元件容差，使得电路的测量数据存在着不确定的信息，增加了故障诊断的难度。而灰色关联度分析在处理此种不确定信息方面有着独到的优势，可以代替传统故障字典法单纯采用样本距离作为故障的分类指标方法进行故障诊断。因此，灰色关联度分析非常适合于容差模拟电路的故障诊断。

Fault Diagnosis of Analog Circuit Based on Gray Relation Analysis

In general,element error tolerance existing in analog circuit makes uncertain information exist in circuit test data,and increases the difficulty of fault diagnosing. Gray relation analysis has special advantage in handling the uncertain information and can replace the way of traditional fault dictionary which takes specimen distance as sort target of fault. Thus,the gray relation analysis fits the analog circuit.