基于Volterra级数的模拟电路故障诊断  

Analog Circuit Fault Diagnosis Based on Volterra Series

作　　者：徐萍[1] 李耕[1] 王凯[1] 

机构地区：[1]第二炮兵工程学院,西安710025

出　　处：《微计算机信息》2011年第9期118-119,共2页Control & Automation

摘　　要：Volterra级数是一种泛函级数,时域和频域核有明确的物理意义,不依赖于系统的输入,因而完全反映了系统的本质特性。因此可以用Volterra级数作为非线性模拟电路的分析工具,通过直接分析非线性模拟电路的频率响应以提取故障特征,从而实现非线性模拟电路的故障诊断。The Volterra series are a functional series.Its kernals both in time domain and frequency domain have definite physical significance and are independent with the system input.Thus the kernals can reflect intrinsic nature of the system.Thus the Volterra series can be used to analyze the nonlinear analog circuit.The fault feature can be extracted based on the direct analysis on the frequency response of nonlinear analog circuit so as to detect the fault in nonlinear analog circuit.

关 键 词：VOLTERRA SERIES 非线性模拟电路 故障特征 故障诊断 

分 类 号：TN707[电子电信—电路与系统]