用户星天线空间扫描策略  

Space Scanning Strategies for User Satellite's Antenna

作　　者：翟坤[1] 李顺利[1] 杨涤[1] 

机构地区：[1]哈尔滨工业大学航天工程与力学系,黑龙江哈尔滨150001

出　　处：《航空学报》2008年第5期1308-1313,共6页Acta Aeronautica et Astronautica Sinica

基　　金："十五"预研项目(11303010203)

摘　　要：天线空间扫描过程是建立中继卫星系统星间链路的关键阶段之一。首先分析比较了水平行扫、螺旋扫描和分行螺旋扫描策略,并根据分析结果,结合轨迹预处理算法,设计了一种变速分行螺旋扫描策略。然后采用蒙特卡罗仿真分析了用户星天线开环回扫指向精度,近似确定了天线空间扫描的范围。最后通过仿真比较等速分行螺旋扫描和变速分行螺旋扫描策略,并仿真了用户星天线捕获中继卫星的过程,通过仿真结果证明所设计的变速分行螺旋扫描具有一定的工程应用价值。The space scanning process of antenna is a crucial stage for establishing the tracking and data relay statellite system inter-satellite link. Firstly, the strategies of horizontal scan, spiral scan and square spiral scan are analyzed and compared. Based on the trajectory preprocess arithmetic, a kind of rate-variant square spiral scan strategy is designed according to the analysis results. Then, the pointing precision during the antenna＇s open-loop slew is analyzed with Monte Carlo simulation and the scanning scope is approximately determined. Finally, the rate-invariant square spiral scan strategy is compared with the rate-variant square spiral scan strategy through simulating. The antenna acquiring process of tracking and data relay statellite is simulated and the results prove that the designed rate-variant square spiral scan strategy is valuable to the engineering application.

关 键 词：用户星 星间链路 水平行扫 螺旋扫描 分行螺旋扫描 轨迹预处理 蒙特卡罗仿真 

分 类 号：V423.4[航空宇航科学与技术—飞行器设计] TN820.2[电子电信—信息与通信工程]