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Date of Publication:2022-10-10

Journal:兵工学报

Issue:5

Page Number:923-928

ISSN No.:1000-1093

Abstract:Testability D matrix that is the core of testability analysis includes all information of faults and test of system. Exact manipulation of D matrix could greatly increase the efficiency of fault diagnosis. A local information entropy formula is given, and a new algorithm, called quasi information entropy, is proposed based on the analysis of the D matrix traditional processing methods. The proposed algorithm combines the characteristics of traditional global and local optimization algorithms, so it has the ability of global and local optimization and the same applicability as the traditional deposing methods. The availability of the fault diagnosis algorithm is verified by two examples, which show that the proposed algorithm of manipulating the testability D matrix has prominent advantages, such as reduced diagnostic procedure, shorted diagnostic time and reduced cost. © 2016, Editorial Board of Acta Armamentarii. All right reserved.

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