Detection of Weak Signal Based on Parameter Identification of Delay Differential System with Noise Disturbance
Joint Authors
Wang, QiuBao
Yang, Yuejuan
Zhang, Xing
Source
Mathematical Problems in Engineering
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-04-14
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
Extraction of the weak signals is crucial for fault prognostics in which case features are often very weak and masked by noise.
In the time domain, the detection of weak signals depends on the identification of nonlinear parameters.
A new signal detection and estimation method based on the incremental harmonic balance (IHB) is developed from the stochastic Van der Pol–Duffing equation with delayed feedback under parametric excitation.
This is the first time that the IHB has been applied for the identification of parameters in stochastic delay differential equations (SDDEs).
Compared to the method of intermittency transition between order and chaos to detect weak signals, this new method is more direct and the calculation result is what we want to obtain.
This new method is suitable for the generalization and application of SDDEs.
American Psychological Association (APA)
Wang, QiuBao& Yang, Yuejuan& Zhang, Xing. 2020. Detection of Weak Signal Based on Parameter Identification of Delay Differential System with Noise Disturbance. Mathematical Problems in Engineering،Vol. 2020, no. 2020, pp.1-9.
https://search.emarefa.net/detail/BIM-1193668
Modern Language Association (MLA)
Wang, QiuBao…[et al.]. Detection of Weak Signal Based on Parameter Identification of Delay Differential System with Noise Disturbance. Mathematical Problems in Engineering No. 2020 (2020), pp.1-9.
https://search.emarefa.net/detail/BIM-1193668
American Medical Association (AMA)
Wang, QiuBao& Yang, Yuejuan& Zhang, Xing. Detection of Weak Signal Based on Parameter Identification of Delay Differential System with Noise Disturbance. Mathematical Problems in Engineering. 2020. Vol. 2020, no. 2020, pp.1-9.
https://search.emarefa.net/detail/BIM-1193668
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1193668