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容差条件下模拟电路软故障的数学规划诊断方法 被引量：8

Soft-Fault diagnosis of analog circuit with tolerance using mathematical programming
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摘要 为了诊断容差条件下模拟电路软故障,提出一种利用数学规划进行软故障诊断的方法。从电路灵敏度分析入手,建立节点电压增量方程。随后,将节点电压增量方程作为约束条件,将要处理的故障诊断问题转化成为数学规划(mathematical programming,MP)模型并且建立相应的数学规划方程。通过求解这些MP方程,估计待测电路中各元件参数的偏移程度。并由此判断待测电路中是否存在故障元件。 To diagnose soft-fault in analog circuit with parameter tolerance,methods by means of mathematical programming（MP） are proposed in this paper.Based on the sensitivity analysis,voltage increment equations in test nodes are constructed firstly.Next,with the equations as constraint conditions,the problem of diagnosis is transformed into MP models and three kinds of MP equation are built.Then,after solving those MP equations,the parameters deviations of each element in analog circuit under test（CUT） are evaluated,which enable us to state whether there is faulty element in CUT.Simulated examples illustrate the proposed approach and show its effectiveness.
作者 周龙甫 师奕兵 赵光 唐红
机构地区 解放军第 电子科技大学自动化学院
出处 《电子测量与仪器学报》 CSCD 2010年第3期237-243,共7页 Journal of Electronic Measurement and Instrumentation
关键词 数学规划 模拟电路 故障诊断 容差 灵敏度 Mathematical programming analog circuit fault diagnosis tolerance sensitivity
分类号 TP306.3 [自动化与计算机技术—计算机系统结构]
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参考文献15

  • 1BANDLER J W,SALAMA A E.Fault diagnosis of analog circuits[C].Proceedings of the IEEE,1985,73,(8):1279-1325.
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二级参考文献19

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共引文献9

同被引文献86

引证文献8

二级引证文献59

电子测量与仪器学报
2010年 第3期

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