一种绕飞编队卫星星间链路系统的总体设计方法

为了建立高精度相对定位编队卫星的星间链路,提出了一种基于GPS的绕飞编队卫星星间链路系统设计方法。针对我国首次以InSAR为背景的任务,以某绕飞编队星座星间链路系统总体方案为例,利用STK/MATLAB分析软件,对天线覆盖区与组阵进行了仿真分析,并根据分析结果做了系统优化,包括星间轨道构型、天线设计组阵图、天线安装位置、链路预算、星间通信措施设计分析以及电磁兼容性分析等。结果表明:基于GPS的编队卫星能够从系统角度优化设计建立星间链路,从而完成编队跟飞、绕飞期间的星间通信与测量任务,为卫星建立星座构型、相对定位测量提供了可靠、稳定的传输通道。该设计方法可为同类卫星或其他类型卫星星间链路系统设计提供参考。

Top-level Inter-satellite Link Subsystem Design Method for Satellite Formation

GPS-based top-level ISLS（inter-satellite link subsystem）design method for satellite for- mation is proposed in this paper, in order to satisfy the high-precision relative positioning require- ment. By taking China＇s first flying-around InSAR satellite formation as the target system, the coverage area of the ISLS antenna array is analyzed by using STK/MATLAB. The system opti- mization work for orbit design, antenna pattern, link budget, positioning accuracy and electro- magnetic compatibility is also done. The results show that GPS-based satellite formations can es- tablish top-level optimized inter-satellite links to finish the communication and positioning task during the whole flying-around or with-flying by providing reliable communication and positioning links. The proposed method can be a valuable reference for satellite formations ISLS design.