Title
Optimized Feedforward Neural Network Training for Efficient Brillouin Frequency Shift Retrieval in Fiber
Abstract
Artificial neural networks (ANNs) can be used to replace the traditional methods in various fields, making signal processing more efficient and meeting the real-time processing requirements of the Internet of Things (IoT). Recently, as a special type of ANN, the feedforward neural network (FNN) has been used to replace the time-consuming Lorentzian curve fitting (LCF) method in Brillouin optical timedomain analysis (BOTDA) system to retrieve the Brillouin frequency shift (BFS), which could be used as the indicator in temperature/strain sensing and so on. However, the FNN needs to be re-trained if the generalization ability is not satisfactory, or the frequency scanning step is changing in the experiment. This is a cumbersome and inefficient process. In this paper, the FNN only needs to be trained once with the proposed method, and 150.62 km BOTDA is built to verify the performance of the trained FNN. The simulation and experimental results show that the proposed method is promising in BOTDA because of its high computational efficiency and wide adaptability.
Year
DOI
Venue
2019
10.1109/ACCESS.2019.2919138
IEEE ACCESS
Keywords
Field
DocType
Feedforward neural networks,Brillouin optical time-domain analysis,Lorentzian curve fitting,sensor fusion,optical fiber sensors
Frequency shift,Brillouin zone,Feedforward neural network,Fiber,Computer science,Electronic engineering,Distributed computing
Journal
Volume
ISSN
Citations 
7
2169-3536
0
PageRank 
References 
Authors
0.34
0
6
Name
Order
Citations
PageRank
Yongxin Liang100.34
Jialin Jiang211.83
Yongxiang Chen311.16
Richeng Zhu400.68
Chongyu Lu501.01
Zinan Wang600.34