计算机科学 ›› 2017, Vol. 44 ›› Issue (10): 91-95.doi: 10.11896/j.issn.1002-137X.2017.10.017
葛诗春,刘雄飞,周锋
GE Shi-chun, LIU Xiong-fei and ZHOU Feng
摘要: 针对CRH2型动车组列车网络流量数据日益复杂的特性,提出了一种将主成分分析法(PCA)与后馈神经网络(BP网络)相结合的网络流量建模预测思路。基于已搭建好的CRH2型列车通信仿真平台,对该仿真网络各条链路进行流量采集。为了降低分析的复杂度,流量数据先进行PCA降维预处理分析,再将数据输入到BP神经预测网络模型进行仿真预测。经验证,该思路能有效拟合列车主体网络流量的变化趋势,为CRH2型动车组通信网络的故障诊断分析提供了一定的参考。
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