Long dynamic range spread spectrum optical domain reflectometer  

作　　者：ZHANG Fang ZHANG Hongling QI Yuefeng LI Wei 张芳;张红岭;齐跃峰;李卫(School of Information Science and Engineering,Yanshan University,Qinhuangdao 066004,China;Department of Information Engineering,Hebei University of Environmental Engineering,Qinhuangdao 066102,China;School of Electric Engineering,Hebei University of Architecture,Zhangjiakou 075000,China;China Electronics Engineering Design Institute Co.,Ltd.,Beijing 100142,China)

机构地区：[1]School of Information Science and Engineering,Yanshan University,Qinhuangdao 066004,China [2]Department of Information Engineering,Hebei University of Environmental Engineering,Qinhuangdao 066102,China [3]School of Electric Engineering,Hebei University of Architecture,Zhangjiakou 075000,China [4]China Electronics Engineering Design Institute Co.,Ltd.,Beijing 100142,China

出　　处：《Optoelectronics Letters》2021年第11期651-655,共5页光电子快报（英文版）

基　　金：supported by the National Natural Science Foundation of China (No.61735011);the Science and Technology Research Project of Hebei University (No.QN2017141);the Key Research and Development Program of Hebei Province (No.19251703D)。

摘　　要：The performance of an optical time domain reflectometer(OTDR) is significantly improved using spread spectrum technology. The concept of spread spectrum OTDR(SSOTDR) is proposed, the theoretical basis and simulation results of the new method are given, and the problem of direct application of bipolar spread spectrum codes to OTDR and despreading in the optical domain are solved. The simulation results show the feasibility of the SSOTDR, which exhibits better dynamic range reported to date for a practical long-haul OTDR system without using conventional average technique.

关 键 词：SIMULATION DOMAIN Long dynamic range spread spectrum optical domain reflectometer 

分 类 号：TN253[电子电信—物理电子学]