基于测试信息不完备条件下航空电子设备故障诊断是诊断学中的一个重要分支,其基于粗糙集理论,分析诊断信息、仪器参数之间的相关性,建立知识集合,用等价的元素替换不完备的信息,构建决策树,找到可能的故障源。在国外与之相关的综合诊断技术已得到广泛应用,在国内研究者较少,局限性较大,研究有待深入。 Based on the rough set theory, the analysis of diagnostic information, the correlation between instrument parameters, the establishment of knowledge sets, the replacement of the equivalent element is not based on the test of information incomplete fault diagnosis of avionics equipment is an important branch, Complete information, building a decision tree, to find possible sources of failure. The comprehensive diagnostic techniques related to them in foreign countries have been widely used, with few researchers in China and great limitations, and the research needs to be further studied.