![](/images/graphics-bg.png)
Time and Frequency Localized Pulse Shape for Resolution Enhancement in STFT-BOTDR
Joint Authors
Luo, Linqing
Li, Bo
Yu, Yifei
Xu, Xiaomin
Soga, Kenichi
Yan, Jize
Source
Issue
Vol. 2016, Issue 2016 (31 Dec. 2016), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2016-01-27
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
Short-Time Fourier Transform-Brillouin Optical Time-Domain Reflectometry (STFT-BOTDR) implements STFT over the full frequency spectrum to measure the distributed temperature and strain along the optic fiber, providing new research advances in dynamic distributed sensing.
The spatial and frequency resolution of the dynamic sensing are limited by the Signal to Noise Ratio (SNR) and the Time-Frequency (T-F) localization of the input pulse shape.
T-F localization is fundamentally important for the communication system, which suppresses interchannel interference (ICI) and intersymbol interference (ISI) to improve the transmission quality in multicarrier modulation (MCM).
This paper demonstrates that the T-F localized input pulse shape can enhance the SNR and the spatial and frequency resolution in STFT-BOTDR.
Simulation and experiments of T-F localized different pulses shapes are conducted to compare the limitation of the system resolution.
The result indicates that rectangular pulse should be selected to optimize the spatial resolution and Lorentzian pulse could be chosen to optimize the frequency resolution, while Gaussian shape pulse can be used in general applications for its balanced performance in both spatial and frequency resolution.
Meanwhile, T-F localization is proved to be useful in the pulse shape selection for system resolution optimization.
American Psychological Association (APA)
Luo, Linqing& Li, Bo& Yu, Yifei& Xu, Xiaomin& Soga, Kenichi& Yan, Jize. 2016. Time and Frequency Localized Pulse Shape for Resolution Enhancement in STFT-BOTDR. Journal of Sensors،Vol. 2016, no. 2016, pp.1-10.
https://search.emarefa.net/detail/BIM-1110413
Modern Language Association (MLA)
Luo, Linqing…[et al.]. Time and Frequency Localized Pulse Shape for Resolution Enhancement in STFT-BOTDR. Journal of Sensors No. 2016 (2016), pp.1-10.
https://search.emarefa.net/detail/BIM-1110413
American Medical Association (AMA)
Luo, Linqing& Li, Bo& Yu, Yifei& Xu, Xiaomin& Soga, Kenichi& Yan, Jize. Time and Frequency Localized Pulse Shape for Resolution Enhancement in STFT-BOTDR. Journal of Sensors. 2016. Vol. 2016, no. 2016, pp.1-10.
https://search.emarefa.net/detail/BIM-1110413
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1110413