The invention discloses a method for calculating the requirement of signal capture among lunar orbit formation satellites on satellite orbit measurement accuracy, and belongs to the technical field of deep space exploration. The method comprises the following steps: under a ground test condition, measuring an antenna pattern, transmitting signal power and receiving sensitivity of a master satellite, measuring an antenna pattern, receiving sensitivity and a transmitting EIRP value of a slave satellite, measuring an installation error and an antenna mechanism deformation error of a high-gain directional antenna of the master satellite, and measuring attitude control precision of the master satellite. According to the main satellite antenna pointing total error requirement, the antenna installation error, the antenna mechanism deformation error and the beam pointing error caused by the attitude control precision of the main satellite, the position error requirement of the slave satellite relative to the main satellite is calculated; and determining orbit measurement precision requirements of the master satellite and the slave satellite based on the position error. According to the method, the orbit measurement requirement can be put forward to a ground measurement and control system in advance, or the proper inter-satellite distance can be selected according to the orbit measurement precision provided by the ground, and the success probability of establishing the inter-satellite link is improved.
本发明公开了一种环月轨道编队卫星星间信号捕获对卫星测定轨精度要求的计算方法,属于深空探测技术领域。所述方法包括地面测试条件下,测量主星的天线方向图、发射信号功率、接收灵敏度,测量从星的天线方向图、接收灵敏度、发射EIRP值,测量主星高增益定向天线的安装误差和天线机构变形误差,测量主星的姿态控制精度,根据主星天线指向总误差要求、天线的安装误差、天线机构变形误差、主星的姿态控制精度引起的波束指向误差,计算从星相对于主星的位置误差要求;基于位置误差确定主星和从星的测定轨精度要求。本发明能够提前向地面测控系统提出测定轨需求,或根据地面能提供的测定轨精度选择合适的星间距离,提高建立星间链路的成功概率。
Method for calculating requirement of inter-satellite signal acquisition of lunar orbit formation satellites on measured orbit accuracy of satellites
一种环月轨道编队卫星星间信号捕获对卫星测定轨精度要求的计算方法
11.04.2025
Patent
Elektronische Ressource
Chinesisch
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