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With the complexity of missile equipment, Fuzzy Petri Net is applied to the method of modeling fault transmission. Fuzzy production rules are introduced into knowledge representation and the fault diagnosis method using fuzzy Petri Net. The result demonstrates that Fuzzy Petri Net has an easy structure, a good expression of faults and effective capability of fuzzy reasoning.
In order to improve analog circuit recognition, combined KPCA and SVDD, put forward one scheme of analog circuit state recognition based on KPCA-SVDD. Firstly distill characteristic of the outputs voltage signal by KPCA, taking the energy as the eigenvector of state recognition, Then adopt the SVDD categorize method to establish SVDD model of different state, carry on circuit state recognition, Finally...
The SVM technique has good generalization capability for small-sample cases of classification. In essence, fault diagnosis is just a kind of classification. When SVM is applied to the fault diagnosis for circuit, SVM needs to be improved. As a result, a method of Synthesized SVM (SSVM) is proposed in this paper. The SSVM includes PCA and combined SVM (CSVM) we design. PCA can eliminate a lot of irrelevant...
The fault diagnosis has become an increasing portion of todaypsilas IC-design cycle and significantly determines productpsilas time-to-market. However, the failure behaviors from the defective chips may not be fully represented by the single fault model. In this paper, we propose a fault-diagnosis framework targeting multiple stuck-at faults. This framework first reports a minimal suspect region,...
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