基于D-S证据理论的雷达故障诊断方法

Research on radar fault diagnosis method based on D-S evidential theory

新型雷达装备故障具有明显的复杂性和相关性,难以准确确定故障部位。在分析雷达故障特点和专家诊断系统不足的基础上,把信息融合技术引入故障诊断,提出了一种基于D-S证据推理的诊断方法,构建了故障诊断模型,介绍了D-S证据推理的故障诊断算法和诊断过程,并用实例进行了验证。结果证明,该方法较好地解决了故障诊断中的不确定性问题,弥补了当前诊断系统中存在的缺陷。

The fault of the new type of radar is highly complex and correlative, so it is very difficult to locate it. The information fusion technology is incorporated into the radar fault diagnosis after the radar＇s fault features and the shortage of the expert diagnosis system are analyzed. A diagnosis method based on D-S evidential theory is put forward, and a fault diagnosis model is construced. The diagnosis algorithm and process are introduced, and the method is proved by examples at last. The result shows that the method resolves the uncertainty of fault diagnosis, and fills a gap of the present diagnosis system.