基于天籁射电阵的空间目标探测与测向方法研究  

Study on Detection and Direction-Finding Method of Space Object Based on Tianlai Radio Array

作　　者：李佳威[1,2] 高鹏骐 沈鸣[1] 金旺[1,3] 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 Radio￣Wave 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,云南曲靖655333

出　　处：《天文研究与技术》2018年第3期271-278,共8页Astronomical Research & Technology

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)资助

摘　　要：天籁计划射电望远镜阵列(简称天籁射电阵)具有大视场与高灵敏度的双重优势,既可以在观测时探测到尺寸较小的空间目标,也能在同一时刻探测到多个空间目标,具有较强的空间目标探测能力,因此可作为空间目标监测设备之一。以曲靖非相干散射雷达作为发射源,对天籁射电阵的空间目标探测能力进行计算。随后提出了可用于该系统的基于相位差测量法的空间目标测向方法,并研究了测向误差与测向角度之间的关系。Tianlai radio array,which has high sensitivity and large field of view,can detect and capture multiple small space objects at the same time.It has decent capability of detecting the space objects,and can be used as one of the space object monitoring equipment.In this paper,the detection capability of Tianlai radio array is calculated when the incoherent scattering radar in Qujing city is assumed as a source of transmission.Then a method for direction-finding of space objects is proposed,which is based on phase difference measurement.The relationship between direction-finding error and direction-finding angle of space objects is also analyzed.

关 键 词：空间目标探测 天籁射电阵 相位差测量法 测向误差 

分 类 号：P161[天文地球—天文学]