航天器天线的建模与仿真  

Antenna Model in Simulation of Spacecraft

作　　者：周倜[1] 苗毅[1] 孙军[1] 

机构地区：[1]北京航天飞行控制中心,北京100094

出　　处：《系统仿真学报》2016年第9期2042-2048,共7页Journal of System Simulation

摘　　要：为解决航天仿真系统中航天器与中继星的平台可见性问题,在基于HLA的仿真软件体系结构基础上,研究了几种二维空间中航天器天线的仿真模型,给出了在相应模型下中继星的可见性充要条件及计算方法。研究了三维空间的天线模型,结合航天器轨道和姿态信息,给出了带航天器姿态信息的三维天线模型,并采用矩阵变换等方式将所需的矢量转换到同一坐标系中,利用充要条件判断可见性。在实验中,采用C程序实现了文中提出的几种天线模型。结果表明带航天器姿态信息的三维空间天线模型可灵活有效地判断载人航天仿真中航天器与中继星的可见性。To give a solution how to catch relay satellite by spacecraft in the simulation system of manned craft, several 2D craft models were studied in the simulation software based on HLA, and some sufficient and necessary conditions and the methods were given to compute the visibility of relay satellite according to these models. On these methods, 3D antenna model and the orbit and attitude model of spacecraft were researched, and 3D antenna model was given with attitude information of craft. Finally, matrix translations were used to translate some vectors to the same reference frame, and the visibility was decided by these sufficient and necessary conditions. These models were implemented by C program in the experiment. The result shows that the antenna model with the attitude information of craft in 3D is flexible and effective to compute the visibility between craft and relay satellite in the simulation of manned craft mission.

关 键 词：天线模型 仿真 可见性 姿态信息 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]