天籁射电阵的空间碎片探测性能分析  

Performance Analysis of Space Debris Detection Based on Tianlai Radio Telescope Array

作　　者：李佳威[1,2] 高鹏骐 沈鸣[1] 金旺[3] 赵有[1] LI Jiawei;GAO Pengqi;SHEN Ming;JIN Wang;ZHAO You(National Astronomical Observatories,Chinese Academy of Sciences,Beijing 100101,China;University of Chinese Academy of Sciences,Beijing 100049,China;Kunming Radiowave Observatory,China Research Institute of RadioWave Propagation,Qujing 655333,China)

机构地区：[1]中国科学院国家天文台,北京100101 [2]中国科学院大学,北京100049 [3]中国电波传播研究所昆明电波观测站,曲靖655333

出　　处：《宇航学报》2018年第11期1299-1307,共9页Journal of Astronautics

基　　金：国家重大科研装备研制项目(ZDYZ2013-2);中国科学院国际合作局对外合作重点项目(181811KYSB20170018)

摘　　要：提出以曲靖非相干散射雷达作为一种可能的发射源与天籁射电阵组成一套双基地雷达空间碎片探测系统,对该系统的空间碎片探测性能进行计算与仿真分析,包括可探测目标雷达散射截面积(RCS)、天籁射电阵对空间目标与碎片探测时间、探测效率等。分析表明,该系统具有探测直径10 cm以下级空间小碎片的潜力,并在最后提出了一种基于该系统的交叉波束的确定方法及对空间碎片定位的方法。A bistatic radar system combined with the Tianlai radio telescope array and an incoherent scattering radar,which is assumed as a source of transmission in Qujing,Yunnan Province,is proposed to detect the space debris.The detection performance of the system,including the radar cross section(RCS),the detection time and the detection efficiency of the Tianlai radio telescope array is calculated and analyzed in the paper.The analysis shows that the system has the potential ability to detect small space debris whose diameter is less than 10 cm,and then provides the methods of determining the cross beams and positioning space debris based on this system.

关 键 词：空间碎片探测 射电天文 天籁射电阵 双基地雷达系统 非相干散射雷达 探测性能 

分 类 号：P165[天文地球—天文学]