Analog Circuit Fault Diagnosis Using Higher Order Cumulants

摘要：

An approach to analog circuit fault diagnosis using higher order cumulants (HOC) is described in this paper. Our system used a harmonic signal to excite the circuit under test (CUT), and then the response was putted into a Butterworth filter bank. For each subband filter, the output sequence was analyzed by higher order cumulants. Skewness, a 1-D slice of 3 (rd) -order cumulant was used in the system as fault feature. The simulation results showed that this was an effective method for analog circuit diagnosis. The fault trend was distinguished also by this method. Moreover, the fault coverage was improved.

关键词： analog circuit fault diagnosis filter bank higher order cumulant skewness.

作者: Taiwen Yuan Yongle Xie Guangju Chen

作者单位: School of Mechatronics Engineering,University of Electronic Science and Technology of China Chengdu School of Automation Engineering,University of Electronic Science and Technology of China Chengdu 61

会议类型: 国际会议

会议名称: 2009 9th International Conference on Electronic Measurement & Instruments(第九届电子测量与仪器国际会议 ICEMI2009)

会议地点: 北京

会议语种:英文

页码: 4279-7282

在线出版日期: 2009-08-16（万方平台首次上网日期，不代表论文的发表时间）