Systems Engineering and Electronics ›› 2021, Vol. 43 ›› Issue (3): 637-646.doi: 10.12305/j.issn.1001-506X.2021.03.06

• Electronic Technology • Previous Articles     Next Articles

Local multiple kernel extreme learning machine fault diagnosis model with dynamic fuzzy clustering for avionics

Jinling DAI(), Aiqiang XU()   

  1. Naval Aviation University, Yantai 264001, China
  • Received:2020-06-16 Online:2021-03-01 Published:2021-03-16

Abstract:

To improve the module-level fault diagnosis rate for avionics in a small sample size, based on the adaptive feature of dynamic fuzzy clustering and the local feature of local multiple kernel learning (LMKL), a local multiple kernel extreme learning machine (LMKELM) model for avionics is proposed. The model confirms the number of clusters adaptively by introducing the concept of local density. Local density is combined with the fuzzy C-means algorithm to realize dynamic fuzzy clustering, which well reflects the diversity between clusters and reduces calculation. A gating model is constructed to solve the non-convex quadratic problem of local weight. Fault diagnosis of test samples is realized by fusing information of local weight and membership. The proposed model is applied into a certain type of rotary transformer excitation generating circuit. Compared with the four fashionable multiple kernel learning methods, the proposed model performs better in terms of false alarm and missing alarm rate. The experimental result shows that the applied M1 and M2 gating models enhance the average accuracy by 2.78% and 4.37% respectively.

Key words: fault diagnosis, local density, fuzzy C-means algorithm, local multiple kernel learning, gating model

CLC Number: 

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