基于多信号流模型的雷达BIT监测点优化与诊断策略

针对如何用最少的BIT状态监测点实现对雷达运行状态的有效检测问题，提出基于多信号流模型的优化策略。介绍多信号流模型的定义和表示，分析了运用该模型对雷达模块（电路）的建模、相关矩阵简化、监测点的选取及诊断策略设计方法，以某型雷达2km波门形成电路为例进行验证。结果表明，该方法可减小监测系统的复杂性，避免诊断推理过程的盲目性，提高故障诊断效率，并得到成功应用。

Monitoring Points Optimization and Diagnosis Strategy in Radar BIT Based on Multi-Signal Flow Model

In order to monitor the radar work condition and decrease the BIT monitoring points,a new optimization strategy based on multi-signal flow model is proposed.Introduces the definition and representation of multi-signal flow model,analyzes the method about modeling,predigesting dependency matrix,selecting monitoring points and designing diagnosis strategy by using this model.The validity of this method is verified in the radar’s 2km gate BIT circuit.The result shows that the method can reduces the complexity of monitoring system,avoids the blindness of diagnosis inference course,and raises the efficiency of fault diagnosis.