长春站激光测距系统单向延迟标校方法研究  

One-way calibration research of Changchun observatory satellite laser ranging system

作　　者：董贺 付少鹏 刘洋 梁智鹏[2] 郑彦宁 董雪[2,3] 华杰[1] 汪津[1] DONG He;FU Shao-peng;LIU Yang;LIANG Zhi-peng;ZHENG Yan-ning;DONG Xue;HUA Jie;WANG Jin(College of Information and Technology,Jilin Normal University,Siping 136000,China;Changchun Observatory/NAO,Chinese Academy of Sciences,Changchun 130117,China;Key Laboratory of Space Object and Debris Observation,Chinese Academy of Sciences,Nanjing 210008,China)

机构地区：[1]吉林师范大学信息技术学院,吉林四平136000 [2]中国科学院国家天文台长春人造卫星观测站,吉林长春130117 [3]中国科学院空间目标与碎片观测重点实验室,江苏南京210008

出　　处：《吉林师范大学学报（自然科学版）》2023年第3期89-95,共7页Journal of Jilin Normal University:Natural Science Edition

基　　金：国家自然科学基金项目(11973064);吉林省科技发展计划项目(20220101125JC)。

摘　　要：卫星激光测距是当代空间大地测量中精度最高的技术之一,其精度可达毫米级.为了延长激光测距的作用距离,采用单向激光测距方式,将作用范围由近地空间拓展到深空探测领域,同时带来了激光测距发射端和接收端系统延迟的独立标校问题.本文基于长春站卫星激光测距系统,应用自主设计的激光测距单向延迟标校装置,搭建单向激光测距模拟系统,建立发射端延迟标校模型,并分析单向延迟标校精度.实验结果表明,长春站SLR系统发射端延迟为-75.766 ns,分析得到单向延迟标校精度优于22.82 ps,经延迟标校方法修正后的单向激光测距精度可达毫米级.该单向延迟标校方案简便易行,自主设计的激光测距单向延迟标校装置及方法有助于实现单向激光测距延迟标校的标准化,为长春站SLR系统在应答器测距和激光时间传递等单向激光测距方面的扩展应用提供了技术支撑.Satellite laser ranging is the most precise technology in current space geodesy with millimeter level precision.One-way laser ranging technique extends the operation range of laser ranging from near-Earth orbits to deep space.However,one-way ranging requires separate calibration on both transmitting and receiving terminals.A one-way laser ranging calibration device was designed and implemented in the paper.Based on Changchun Observatory satellite laser ranging system,one-way laser ranging simulation system was set up.With the mathematical model of optical and electrical delay in one-way laser ranging,the calibration accuracy was analyzed.Results show that the delay for transmitting terminal in one-way laser ranging simulation system is-75.766 ns and calibration accuracy is 22.82 ps,and the calibrated laser ranging measurement accuracy reaches the millimeter level.This research provides a simple and practical design for one-way ranging calibration,so as to help standardization of one-way laser ranging technology and to support Changchun Observatory satellite laser ranging system to extend its application on one-way ranging techniques,e.g.transponder ranging and laser time transfer.

关 键 词：激光测距 单向测距 延迟标校 激光时间传递 

分 类 号：P228.5[天文地球—大地测量学与测量工程]