A Data Fusion Fault Diagnosis Method Based on LSTM and DWT for Satellite Reaction Flywheel
Joint Authors
Wen, Xin
Long, Dizhi
Wang, Junhong
Wei, Bingyi
Source
Mathematical Problems in Engineering
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-15, 15 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-09-11
Country of Publication
Egypt
No. of Pages
15
Main Subjects
Abstract EN
This paper presents a novel fault diagnosis method based on data fusion for a reaction flywheel of the satellite attitude system.
Different from most traditional fault diagnosis techniques, the proposed solution simultaneously accomplishes fault detection and identification within parallel fusion blocks.
The core of this method is independent fusion block, which uses a generalized ordered weighted average (GOWA) operator to complement the characteristics of output data from long short-term memory (LSTM) neural network and discrete wavelet transform (DWT) so as to enhance the reliability and rapidity of decision-making.
Moreover, minibatch normalization is selected to address the problem of covariate shift, realize the adaptive processing of the dynamic information in the original data, and improve the convergence speed of the network.
With the high-fidelity model of the reaction flywheel, three common faults are, respectively, injected to collect experimental data.
Extensive experiment results show the efficacy of the proposed method and the excellent performance achieved by LSTM and DWT.
American Psychological Association (APA)
Long, Dizhi& Wen, Xin& Wang, Junhong& Wei, Bingyi. 2020. A Data Fusion Fault Diagnosis Method Based on LSTM and DWT for Satellite Reaction Flywheel. Mathematical Problems in Engineering،Vol. 2020, no. 2020, pp.1-15.
https://search.emarefa.net/detail/BIM-1194099
Modern Language Association (MLA)
Long, Dizhi…[et al.]. A Data Fusion Fault Diagnosis Method Based on LSTM and DWT for Satellite Reaction Flywheel. Mathematical Problems in Engineering No. 2020 (2020), pp.1-15.
https://search.emarefa.net/detail/BIM-1194099
American Medical Association (AMA)
Long, Dizhi& Wen, Xin& Wang, Junhong& Wei, Bingyi. A Data Fusion Fault Diagnosis Method Based on LSTM and DWT for Satellite Reaction Flywheel. Mathematical Problems in Engineering. 2020. Vol. 2020, no. 2020, pp.1-15.
https://search.emarefa.net/detail/BIM-1194099
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1194099