A Method for Eliminating the Impact of Microwave Sweeper Power Fluctuation in BOTDA System  

作　　者：Shuo Jiang Jun Chang Sasa Zhang Zongliang Wang Sha Luo Boning Sun Xiaohui Liu Yongning Liu Junqiang Tian Chuanwu Jia 

机构地区：[1]School of Information Science and Engineering and Shandong Provincial Key Laboratory of Laser Technology and Application,Shandong University,Jinan,250199,P.R.China

出　　处：《Photonic Sensors》2014年第1期86-91,共6页光子传感器（英文版）

摘　　要：The impact of microwave sweeper power fluctuation in the BOTDA system has been theoretically analyzed and experimentally tested. And a novel method comparing real-time acquisition of probe wave power with a new algorithm to realize probe wave power normalization for eliminating this impact was proposed. The principle of the proposed method was described theoretically. And the contrast test between our new method and conventional one was carried out. The experiment results indicated that the temperature accuracy was effectively improved from ＋5 C to 2 C.

关 键 词：Distributed temperature sensor microwave sweeper power fluctuation temperature accuracy 

分 类 号：TN949.12[电子电信—信号与信息处理] N94[电子电信—信息与通信工程]