改进BP网络在机载电子设备故障诊断中应用

Application research of bp algorithm in fault diagnosis of avionic systems

提出了一种简便有效的故障模型和故障诊断问题的描述方法。由于传统BP算法收敛速度慢,容易陷入局部极小值的陷阱, 在此作了改进。改进后的BP算法明显优于传统的BP算法。并应用改进的BP算法对飞机机载电子设备进行故障诊断仿真,取得 了良好的效果。

The paper proposes a simple and effective model of fault diagnosis. Because the BP algorithm is standstill in learning, which means that the state of networks is subject to getting trapped in one of local minima, a new learning method is proposed in this paper. We obtain good result by applying it to avionics systems fault diagnosis problems.