一种多目标区域多轨道星座设计方法

在有限资源条件下,针对多目标区域的对地观测问题是航天器轨道设计、在轨任务规划中的重要问题。卫星效能的充分发挥基于科学的卫星星座设计。围绕多区域多轨道星座设计问题:首先,结合运载器实际能力,确定轨道类型和设计变量；然后,根据轨道外推、星下点轨迹、探测区域等算法,提出重访时间的计算方法,以最大重访时间作为星座性能指标,采用多层嵌套变量搜索方法实现星座设计；最后,对 1个具体任务进行实例设计。结果表明,采用该方法能够设计出满足指标要求的星座,具有可行性。

A Multi-Target Area and Multi-Orbit Constellation Design Method

Under the limited resource conditions, earth observation for multi-target area is an important problem in space. craft orbit design and in-orbit mission planning. The full effectiveness of each satellite is based on scientific design of the sat.ellite constellation. Around the multi-target area and multi-orbit constellation design problem, firstly, the orbit type and de.sign variables are determined in conjunction with the actual ability of the carrier. Then, according to the orbit extrapolation,point trajectory and detection area algorithm, the revisiting time calculation method is proposed. With the maximum revisit.ing time as the constellation design performance index, the constellation design is implemented using multi-layer nested vari.able search method. Finally, an example task is designed to show that the proposed constellation design method can find theconstellation to meet the index requirements, and it is feasible.