基于LMKL的航空电子部件故障检测技术

Fault Detection Technology of Avionics Components Based on LMKL

为了使航空电子部件故障诊断精度得到提高,提出了基于LMKL的航空电子部件故障诊断方法。使用正常状态下小样本数据,提出基于LMKL的数学表达方式。得到局部核权重对离线检测需要的统计检验量和阈值进行定义,实现故障检测功能。最后,将此方法在航空电子设备中使用。通过结果表示,方法能够提高特异度、查准率和召回率。

In order to improve the fault diagnosis accuracy of avionics components, a fault diagnosis method for avionics components based on LMKL is proposed. A mathematical expression based on LMKL is proposed using small sample data under normal conditions. The local kernel weight is obtained to define the statistical inspection quantity and threshold required for offline detection, so as to realize the fault detection function. Finally, this method is used in avionics. The results show that the method can improve the specificity, precision and recall.