.png){kind=icon}
Return
Instantaneous frequency tracking method for composite cable-stayed bridge
.png){kind=icon}
PRE
AI
DOI：10.1016/j.ymssp.2017.07.023.png)
.png){kind=icon}
Original request for help.png){kind=icon}
Share.png){kind=icon}
Save
Abstract
En 中文
This paper presents an instantaneous frequency (IF) tracking method based on conjugate pair decomposition, and describes a signal filtering methodology that is employed to eliminate unwanted frequencies. The proposed methodology is verified and compared with Hilbert-Huang transform method by numerical simulation, steel beams and composite cable-stayed bridge experiment. The results show the proposed method has good robustness, adaptability and anti-noise capability which can be used to accurately extract the instantaneous frequency in complex environments; in addition, the extracted frequencies are close to each other using conjugate-pair decomposition and Hilbert-Huang transform. Moreover, the proposed method may be further applied in structural damage identification. (C) 2017 Elsevier Ltd. All rights reserved.
Keywords:
Instantaneous frequency
Signal filtering
Conjugate-pair decomposition
Composite cable-stayed bridge
AI Summary
Key information extracted from the uploaded paper, including a brief overview, abstract, background, key highlights, visual analysis, and future outlook.
Journal
IF:
8.9
Papers:
1.3W
Citations:
6.6W
Organization
Cited Papers
.png){kind=icon}
ShareSaveShareSaveTime-Frequency Analysis of Nonstationary Process Based on Multivariate Empirical Mode Decomposition
PREAI
ShareSave
ShareSaveShareSaveShareSave
View more