容差電路的故障診斷最小容差估計算法
FAULT DIAGNOSIS FOR ANALOG CIRCUITS WITH TOLERANCEMINIMUM TOLERANCE ESTIMATION ALGORITHM
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摘要: 本文從容差對k故障診斷法的影響機理出發(fā),提出了一種具有明確物理意義的容差電路故障診斷方法最小容差估計算法。這種方法可通過較少的計算,獲得等效故障源的有效估計。特別重要的是,由此算法還可派生出一種無須迭代的自適應次優(yōu)算法,計算量很小,適合于實時性要求較高或電路規(guī)模較大的場合。Abstract: Based on the influence of circuit element tolerances to the k-fault diagnosis, a method of fault diagnosis is presented which is called as minimum tolerance estimation algorithm and has clear physical meaning. Using this method, an effective estimation of the equivzlent fault sources can be obtained with less computing time. It is especially worthwhile to point out that a self-adaptive sub-optimal algorithm, which comes from the above method, requires even less computing-labor and is particularly suitable for more complicated circuits as well as real-time fault location.
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楊嘉偉, 模擬電路支路模塊級故障診斷的理論與實踐研究, 清華大學自動化系博士學位論文, 北京, 1991年.[2]L. Hu et al., A Stochastic Model Analog Fault Diagnosis with Tolerance, Proc. IEEE Int. Symp. on CAS, Montreal, Canada, May 1984, pp. fi80-682.[3]Z. F. Huang, R. W. Liu, A Theory of Generalized Linear Functions: II, Estimation, Tech. Report EE-852, University of Motre Dame, Indiana, USA, (1985).[4]周新就, 楊叔孔, 通信學報, 11(1990)5,81-86.[5]復旦大學編, 概率論(第二冊), 數(shù)理統(tǒng)計(第二分冊), 高等教育出版社, 北京, 1987年, 第147-159頁.[6]楊維權等, 多元統(tǒng)計分析, 高等教育出版社, 北京, 1989年, 第37-49頁. -
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