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基于波形相似度的容差模拟电路软故障诊断

, PP. 222-229

Keywords: 模拟电路,故障诊断,特征区间向量,多频测试,波形相似度

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Abstract:

针对容差模拟电路输出波形参数的随机性,构造了描述特定电路状态的特征区间向量,据此提出了一种基于多频响应波形相似度的软故障诊断方法。对每一种软故障,分别施加K种不同频率的激励信号,获取K个由输出响应构成的标准特征区间向量作为该故障状态的信号特征。对待测电路施加相同的K种频率的激励信号,获取K个待测样本,分别与每种故障模式的K个相应的标准特征区间向量进行相似度计算,获取K个波形相似度,在波形相似度融合中考虑了均方差权重系数和可信度权重系数,得到待测样本与该故障模式的总体相似度。最后依据一定的模糊规则进行故障定位。仿真实验证明,本方法在保证较高诊断准确率的情况下,对测点要求低,易于在自动测试系统中实现诊断的自动化。

References

[1]  杨士元, 胡梅, 王红. 模拟电路软故障诊断的研究[J]. 微电子学与计算机, 2008, 25(1): 1-8.
[2]  Stopjakova V, Malosek P, Micusik D, et al. Classification of defective analog integrated circuits using artificial neural networks[J]. Journal of Electronic Testing: Theory and Applications, 2004: 20(1): 25-37
[3]  Wang P, Yang S. A new diagnosis approach for handling tolerance in analog and mixed- signal circuits by using fuzzy math [J]. IEEE Transactions on Circuits and Systems-I: Fundamental Theory and Applications, 2005, 52(10): 2118-2127
[4]  王安娜, 邱增, 吴洁, 等. 基于SVM多类分类算法的模拟电路软故障诊断[J]. 东北大学学报(自然科学版), 2008, 29(7): 924-927.
[5]  Wang Anna, Qiu Zeng, Wu Jie, et al. SVM-based multi-classifying algorithm for soft fault diagnosis of analog circuits[J]. Journal of Northeastern University (Natural Science), 2008, 29(7): 924-927.
[6]  彭良玉, 禹旺兵. 基于小波分析和克隆选择算法的模拟电路故障诊断[J]. 电工技术学报, 2007, 22(6): 12-16.
[7]  田玮, 凌燮亭. 基于区间线性方程组解的电路容差分析[J]. 电子学报, 1995, 23(9): 56-60
[8]  Tian Wei, Ling Xieting. Circuit worst-case tolerance analysis via solution of interval linear equations[J]. Acta Electronica sinica, 1995, 23(9): 56-60.
[9]  马彦恒, 刘林. 基于VXIbus的波形模糊识别的研究[J]. 电子科技大学学报, 2001, 30(16): 625-628.
[10]  张玮, 沈士团, 李驿华.一种面向输出响应的多频测试故障检测与隔离方法[J]. 遥测遥控, 2003, 24(6): 43-46.
[11]  Aminian F, Aminian M. Neural-network based analog-circuit fault diagnosis using wavelet transform as preprocessor[J]. IEEE Transactions on Circuits and System II: Analog and Digital Signal Processing, 2000, 47(2): 151-156.
[12]  Alippi C, Catelani M, Fort A, et al. Automated selection of test frequencies for fault diagnosis in analog electronic circuits[J]. IEEE Transactions on Instrumentation and Measurement, 2005, 54(3): 1033- 1044.
[13]  Zhang Wei, Shen Shituan, Li Yihua. Output response- oriented fault detection and isolation under multifrequency test[J]. Journal of Telemetry Trackingm and Command, 2003, 24(6): 43-46.
[14]  彭敏放, 何怡刚, 吕敬祥. 基于智能信息融合的模拟电路故障定位方法[J]. 电工技术学报, 2005, 20(11): 93-96.
[15]  钟建林, 何友, 王红星. 基于多频小波分析和D-S推理的电路故障诊断[J]. 电工技术学报, 2010, 25(8): 180-184.
[16]  Zhong Jianlin, He You, Wang Hongxing. Circuit fault diagnosis based on multi-frequency wavelet analysis and D-S reasoning[J]. Transactions of China Electrotechnical Society, 2010, 25 (8): 180-184.
[17]  彭敏放, 何怡刚. 容差模拟电路的模糊软故障字典法诊断[J]. 湖南大学学报(自然科学版), 2005, 32(1): 25-28.
[18]  Peng Minfang, He Yigang. A fuzzy soft fault dictionary method for diagnosis of analog circuits with tolerance[J]. Journal of Hunan University (Natural Sciences), 2005, 32(1): 25-28.
[19]  Ma Yanheng, Liu Lin. The study of waveform fuzzy identification based on VXIbus measurement[J]. Journal of University of Electronic Science and Techonogy of China, 2001, 30(16): 625-628.

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