航天器中继天线跟踪角度实时预算方法  

Real-Time Tracking Algorithm for Relay Antenna of Spacecraft

作　　者：黄克武[1] 朱珂[1] 张伟[1] 齐鑫[1] HUANG Kewu;ZHU Ke;ZHANG Wei;QI Xin(Institute of Manned Space System Engineering,China Academy of Space Technology,Beijing 100094,China)

机构地区：[1]中国空间技术研究院载人航天总体部,北京100094

出　　处：《电子科技》2021年第7期1-6,共6页Electronic Science and Technology

基　　金：载人航天预先研究项目(17010101)。

摘　　要：针对传统中继天线跟踪角度STK仿真算法无法与航天器AIT实时测试过程相结合的问题,文中提出了一种中继天线跟踪角度实时预算方法并进行了软件实现。利用航天器轨道、天线波束及坐标系关系建立了中继天线指向角度等效模型,并结合航天器飞行姿态和实时遥测,实现了中继天线的跟踪角度预算、实时验证和闭环控制。实验结果表明,该方法实现了航天器AIT测试过程天线角度跟踪结果实时比对,以及航天器在轨各种姿态下测控覆盖区实时预测,单个测控弧段最大可增加13.3%覆盖率。文中所述方法已在某型号航天器分系统测试和在轨飞行任务中得到应用。In view of at the problem that the traditional STK simulation algorithm for tracking angle of relay antenna cannot be used in real-time testing processing for spacecraft AIT,a real-time tracking algorithm for relay antenna is proposed and implemented in software.In this method,the orbit of spacecraft,antenna beam and coordinate system are applied to establish the equivalent model of the direction angle for relay antenna.Combining the spacecraft flight attitude and real-time telemetry,the tracking angle algorithm,real-time test result verification and closed-loop control strategy for relay antenna are realized.The experimental results show that the proposed method not only achieve real-time comparison of relay antenna angle tracking during the AIT test process,but also achieves the real-time prediction of TTC coverage under various flight attitude on orbit.The maximum TTC coverage of a single arc is increased by 13.3%.The method described in the study has been already applied to a certain type of spacecraft sub-system test and in orbit flight missions.

关 键 词：航天器 中继天线 跟踪算法 实时 AIT 测试软件 STK TTC 

分 类 号：TN925.1[电子电信—通信与信息系统]