高精度千赫兹流动激光测距系统中国西部地区实测结果分析  

kHz Repetition Rate Mobile Laser Ranging System with High Precision and Measuring Results Analysis in Western China

作　　者：李欣[1,2,3] 朱威 罗青山[1,2,3] 邹彤 郭唐永[1,3] LI Xin;ZHU Wei;LUO Qing-shan;ZOU Tong;GUO Tang-yong(Key Laboratory of Earthquake Geodesy,Institute of Seismology,China Earthquake Administration,Wuhan 430071,China;Institute of Disaster Prevention,Sanhe,Hebei 065201,China;Hubei Key Laboratory of Earthquake Early Warning,Hubei Earthquake Agency,Wuhan 430071,China)

机构地区：[1]中国地震局地震研究所地震大地测量重点实验室,武汉430071 [2]防灾科技学院,河北三河065201 [3]湖北省地震局地震预警湖北省重点实验室,武汉430071

出　　处：《光子学报》2020年第2期113-121,共9页Acta Photonica Sinica

基　　金：中国地震局地震研究所和中国地震局地壳应力研究所基本科研业务费专项(No.IS201506208)~~

摘　　要：为了解决人造卫星激光测距观测站在我国东西部地区分布不均衡的现状,中国地震局地震研究所采用方便运输的载车结构和皮秒级千赫兹半导体激光器,结合自行研制的皮秒级事件计数器和纳秒级距离门,研制了新一代的大口径流动卫星激光测距系统TROS1000.TROS1000具备千赫兹流动激光测距的能力,并且具有机动灵活、架设周期短等特点.2019年9月,TROS1000抵达中国科学院新疆天文台南山观测站,在我国西部地区首次获取千赫兹激光观测数据.经过数据预处理,中低轨卫星的单次精度优于14 mm,高轨卫星的单次精度优于19 mm,与上一代流动激光测距系统相比,其单次精度更高,有效回波信号更多,目标探测能力更强.Institute of Seismology,China Earthquake Administration has developed a new generation of large-aperture mobile satellite laser ranging system TROS1000,which uses a convenient transport structure,a picosecond kHz semiconductor laser,a self-developed picosecond event timer and a nanosecond range gate generator,in order to solve the unbalanced distribution of satellite laser ranging stations in the East and West of China.TROS1000 is the kilohertz satellite laser ranging system,it can be transport conveniently and setup quickly.In september 2019,TROS1000 arrived at Nanshan station of Xinjiang Astronomical Observatory,Chinese Academy of Sciences.TROS1000 acquire kHz satellite laser ranging observation data in Western China for the first time.After data preprocessing,the single accuracy of low earth orbit and medium earth orbit satellites are better than 14 mm,that of high earth orbit satellites are better than 19 mm.Compared with the previous mobile satellite laser ranging system,TROS1000 has higher single accuracy,more valid echo signals and stronger target detection capability.

关 键 词：卫星激光测距 流动观测 千赫兹激光器 事件计数器 距离门 

分 类 号：P228.5[天文地球—大地测量学与测量工程]