A Satellite Incipient Fault Detection Method Based on Decomposed Kullback-Leibler Divergence

doi:10.3390/e23091194

	A Satellite Incipient Fault Detection Method Based on Decomposed Kullback-Leibler Divergence
	Zhang, Ge 1,2; Yang, Qiong 1; Li, Guotong1,2,3 ; Leng, Jiaxing 1; Yan, Mubiao 1,2
	2021-09
发表期刊	ENTROPY
EISSN	1099-4300
卷号	23 期号:9
DOI	10.3390/e23091194
摘要	Detection of faults at the incipient stage is critical to improving the availability and continuity of satellite services. The application of a local optimum projection vector and the Kullback-Leibler (KL) divergence can improve the detection rate of incipient faults. However, this suffers from the problem of high time complexity. We propose decomposing the KL divergence in the original optimization model and applying the property of the generalized Rayleigh quotient to reduce time complexity. Additionally, we establish two distribution models for subfunctions F1(w) and F3(w) to detect the slight anomalous behavior of the mean and covariance. The effectiveness of the proposed method was verified through a numerical simulation case and a real satellite fault case. The results demonstrate the advantages of low computational complexity and high sensitivity to incipient faults.
关键词	Kullback-Leibler (KL) divergence fault detection condition monitoring incipient fault generalized Rayleigh quotient (GRQ) optimum projection vector (PV)
URL	查看原文
收录类别	SCIE
语种	英语
WOS研究方向	Physics
WOS类目	Physics, Multidisciplinary
WOS记录号	WOS:000700720300001
出版者	MDPI
原始文献类型	Article
引用统计
文献类型	期刊论文
条目标识符	https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/128340
专题	信息科学与技术学院_特聘教授组_李国通组
通讯作者	Li, Guotong
作者单位	1.Chinese Acad Sci, Innovat Acad Microsatellites, Shanghai 201203, Peoples R China; 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China; 3.ShanghaiTech Univ, Sch Informat Sci & Technol, Shanghai 201210, Peoples R China
通讯作者单位	信息科学与技术学院
推荐引用方式 GB/T 7714	Zhang, Ge,Yang, Qiong,Li, Guotong,et al. A Satellite Incipient Fault Detection Method Based on Decomposed Kullback-Leibler Divergence[J]. ENTROPY,2021,23(9).
APA	Zhang, Ge,Yang, Qiong,Li, Guotong,Leng, Jiaxing,&Yan, Mubiao.(2021).A Satellite Incipient Fault Detection Method Based on Decomposed Kullback-Leibler Divergence.ENTROPY,23(9).
MLA	Zhang, Ge,et al."A Satellite Incipient Fault Detection Method Based on Decomposed Kullback-Leibler Divergence".ENTROPY 23.9(2021).