空间碎片激光测距探测能力分析  

Detection Capability Analysis of Space Debris Laser Ranging

作　　者：于欢欢[1,2] 高鹏骐[1] 沈鸣[1] 郭效忠[1] 杨大陶 赵有[1] 

机构地区：[1]中国科学院国家天文台,北京100012 [2]中国科学院大学,北京100049

出　　处：《天文研究与技术》2016年第4期416-421,共6页Astronomical Research & Technology

基　　金：国家自然科学基金(U1231114);国家重大科研装备研制项目(ZDYZ2013-2)资助

摘　　要：针对利用激光测距技术探测空间碎片这一新的发展趋势,基于国内外现状和未来探测的需求,首先对空间碎片激光测距的探测成功率进行了理论计算;其次计算分析了望远镜口径大小、激光器单脉冲能量及重复频率与可探测空间碎片大小及探测距离之间的关系。研究结果表明,采用大功率激光器与大口径望远镜可有效地提高空间碎片的探测能力。为满足探测微小空间碎片(尺寸在20 cm左右)的需要,建议采用能量在2 J^3 J之间、重复频率为100 Hz的激光器和口径1.2 m以上的望远镜。Detecting space debris using laser ranging technique is a new developing trend in the world. Based on the current international and domestic development and future detection requirements of space debris laser ranging, this paper calculates and analyzes the relationship between telescope aperture size, laser pulse energy, repetition frequency, space debris size and height. The analysis indicates that the capability of space debris laser ranging can be improved effectively with high power laser and large aperture telescope. In order to meet the requirements of detecting small space debris （debris size as 20cm or so）, laser with energy between 2J to 3J and repetition frequency in 100Hz working with a telescope larger than 1.2m is recommended.

关 键 词：激光测距 空间碎片 脉冲能量 重复频率 

分 类 号：P228.5[天文地球—大地测量学与测量工程]