基于有向图模型的卫星任务指令生成算法

Remote Sensing Satellite Autonomous Command Sequences Generation Based on Digraph-model

面向任务的卫星操控模式具有操作简便、星载资源使用效率高的优点,正在取代指令序列注入成为遥感卫星运控的新模式。文章提出一种基于有向图模型的遥感卫星任务指令序列生成算法,具有线性存储复杂度和计算复杂度,适合存储资源和计算资源受限的星载计算机应用。此算法已在某遥感卫星应用,测试试验表明,采用3个面向任务的高级指令即可生成52种指令序列,任务上行注入效率提升了5倍。本文方法根据有效载荷的使用约束条件,配置有向图模型参数,即可满足各种类型卫星使用。

The operation of space missions through the sending of goals,instead of sequences of commands,is an emerging paradigm with advantages of operation flexibility and on-board resource efficiency.A novel digraph-based algorithm is proposed to generate a sequence of executable and conflict-free commands,which is of linear storage and computation complexity and applicable for the on-board computer whose resources are limited in both computation and storage.Experiment on a high-resolution satellite shows that 3 mission-oriented service interfaces can achieves 52 kinds of command sequences,and the mission operation up linking efficiency improves 500％.In addition,with a configurable digraph model associated with the specific satel lite,the algorithm is generic.