高动态目标快速捕获的实现方法  

An Implementation Method of Fast Acquisition for High Dynamic Target

作　　者：刘增茂 吴海洲[1] 冀云成 李伟[3] LIU Zengmao;WU Haizhou;JI Yuncheng;LI Wei(The 54th Research Institute of CETC,Shijiazhuang 050081,China;Xi’an Satellite Control Center,Sanya 572011,China;Unit 93160,PLA,Shijiazhuang 050081,China)

机构地区：[1]中国电子科技集团公司第五十四研究所,河北石家庄050081 [2]西安卫星测控中心,海南三亚572011 [3]中国人民解放军93160部队,河北石家庄050081

出　　处：《无线电工程》2021年第8期796-801,共6页Radio Engineering

基　　金：国家部委基金资助项目。

摘　　要：针对探月三期返回器高速再入测控任务特点:返回器轨道具有不确定性,信号传输有黑障现象,且信号起伏变化较大,甚至有闪烁,信号电平较弱,多普勒变化动态大,目标角动态高,返回器再入角捕获技术难度较大,提出了一种基于同时多波束相控阵天线、采用4个波束实现20°×20°空域内大动态快速目标捕获的方案,解决了返回器出黑障后的快速捕获跟踪的技术难题。该方案在执行嫦娥返回试验任务中得到验证,表现突出、性能优异。The uncertainty of return vehicle orbit and the blackout phenomenon of signal transmission are the features of high-speed reentry TT&C mission of return vehicle of the Lunar Exploration phaseIII.There are also more difficulties such as large signal fluctuation,even scintillation,weak signal level,drastic Doppler variation,high dynamic target angle,and capturing reentry target angle of return vehicle.A scheme of high dynamic and fast target acquisition in 20°×20°airspace based on simultaneous multi-beam phased array antenna with four beams is proposed,which solves the technical problem of fast target acquisition and tracking when the return vehicle gets out of the blackout area.The scheme has been verified in the experiment of Chang’e reentry test and has outstanding performance.

关 键 词：黑障 高动态 多波束 快速捕获 

分 类 号：P207[天文地球—测绘科学与技术]