应用简单时间网络的遥感卫星工作模式设计方法

Design Method of Remote Sensing Satellite Observation Mode Using STN

传统卫星工作模式设计均由人工手动完成,主要设计依据为设计师的工程经验及工程设计约束条件,需要耗费大量人力及时间资源,且设计结果是否最优暂无验证手段。为此,文章提出一种应用简单时间网络(STN)图形表述遥感卫星工作模式的方法,对传统的定性约束条件进行定量的图形表示,进一步通过数据算法求解出STN图形表示的最优解,以得到卫星工作模式时序设计结果。结合高分七号卫星工作模式设计工作,对上述方法进行验证,结果表明:此方法可有效解决复杂情况下的卫星工作时序设计问题,合理可行,可为遥感卫星工作模式设计提供参考。

The traditional satellite observation mode is designed manually,mainly based on the designer’s experience and engineering constraints.It takes a large amount of manpower and time,and there is no means to verify the design results.An STN(simple temporal networks)graphical representation method of the satellite observation mode is proposed,which represents the traditional qualitative constraints by quantitative graph.The optimal solution of STN graph can be found by data algorithm,then the timing design result of satellite observation mode can be obtained.Combined with the observation mode design of GF-7 satellite,the above method is verified.The results show that this method can effectively solve the timing design problem of satellite observation mode in complex situations.The proposed method is proved to be reasonable and feasible,providing a design reference for remote sensing satellite observation mode.