1.
Huang, Yi; Chen, Xiaofeng; Shen, Wei; Wei, Ziyi; Hu, Chengyong; Deng, Chuanlu; Wang, Lisen; Zhang, Qi; Chen, Wei; Zhang, Xiaobei; Chen, Lin; Jin, Wei; Tang, Jianming; Wang, Tingyun
Sidelobe Suppression Method with Improved CLEAN Algorithm for Pulse Compression OTDR Journal Article
In: IEEE Photonics Technology Letters, vol. 36, no. 22, pp. 1321–1324, 2024, ISSN: 1941-0174.
Abstract | Links | BibTeX | Tags: CLEAN algorithm, Encoding, Filtering, Optical fibers, Optical filters, Perturbation methods, phase coding, Pulse compression optical time domain reflectometry (PC-OTDR), sidelobe suppression, Signal to noise ratio, Spatial resolution
@article{huang_sidelobe_2024,
title = {Sidelobe Suppression Method with Improved CLEAN Algorithm for Pulse Compression OTDR},
author = {Yi Huang and Xiaofeng Chen and Wei Shen and Ziyi Wei and Chengyong Hu and Chuanlu Deng and Lisen Wang and Qi Zhang and Wei Chen and Xiaobei Zhang and Lin Chen and Wei Jin and Jianming Tang and Tingyun Wang},
url = {https://ieeexplore.ieee.org/document/10685474},
doi = {10.1109/LPT.2024.3465501},
issn = {1941-0174},
year = {2024},
date = {2024-11-01},
urldate = {2025-10-08},
journal = {IEEE Photonics Technology Letters},
volume = {36},
number = {22},
pages = {1321–1324},
abstract = {Although pulse compression optical time domain reflectometry (PC-OTDR) exhibits high performance in spatial resolution and dynamic range, it inevitably introduces auto-correlation sidelobes, potentially impacting measurement accuracy. In this letter, an improved CLEAN algorithm is proposed to efficiently suppress sidelobes and enhance the peak-to-sidelobe ratio (PSLR) of signals in PC-OTDR. The proposed method introduces an adaptive step factor instead of the traditional fixed factor to reduce the number of iterations. Compared to the traditional method, the proposed method achieves a 2.87 dB improvement of PSLR from a 10 km sensing fiber. In addition, the computation time cost is significantly reduced, which is 1.92 s less than that of the traditional CLEAN algorithm.},
keywords = {CLEAN algorithm, Encoding, Filtering, Optical fibers, Optical filters, Perturbation methods, phase coding, Pulse compression optical time domain reflectometry (PC-OTDR), sidelobe suppression, Signal to noise ratio, Spatial resolution},
pubstate = {published},
tppubtype = {article}
}
Although pulse compression optical time domain reflectometry (PC-OTDR) exhibits high performance in spatial resolution and dynamic range, it inevitably introduces auto-correlation sidelobes, potentially impacting measurement accuracy. In this letter, an improved CLEAN algorithm is proposed to efficiently suppress sidelobes and enhance the peak-to-sidelobe ratio (PSLR) of signals in PC-OTDR. The proposed method introduces an adaptive step factor instead of the traditional fixed factor to reduce the number of iterations. Compared to the traditional method, the proposed method achieves a 2.87 dB improvement of PSLR from a 10 km sensing fiber. In addition, the computation time cost is significantly reduced, which is 1.92 s less than that of the traditional CLEAN algorithm.