空间目标光电巡天策略的优化

Optimization of Strategy of Space Object Survey with Electro-Optical Telescopes

随着空间目标与碎片数量的激增,传统的基于目标跟踪的空间目标光电监视手段已不能满足需求,近年出现了面向空域的空间目标巡天观测。针对空间目标巡天观测的特点,同时考虑空间目标观测的目标个数和数据量,提出了一种空间目标巡天观测策略,并建立了相应的空间目标光电巡天优化数学模型。模型中通过0-1变量的使用,实现了目标函数和约束条件的线性化,十分有利于大规模问题的求解,能够更好地满足实际需求。仿真计算表明:策略简单,易于实现,并且有很好的效果;通过优化,只需要少量望远镜即能实现大批量空间目标的监视,并保持一定的观测数据量,为空间目标光电监视策略提供了新的思路。

With the rapid increase of space objects and space debris,traditional target-oriented tracking mode for e-lectro-optical space surveillance meets more and more challenges,and space-oriented survey mode is emerging in re-cent years.Based on the characteristics of space object survey and considering both the number of objects and the quantity of the measurements,a new strategy of survey mode for space surveillance is proposed together with an as-sociated mathematical model for optimization of scheduling of electro-optical observation.Employing 0-1 variables, object functions and constraints in the model are linearized and this has great benefits to the solution of large scale problem and meets the requirements in real cases.Simulation shows that the strategy is easy to implement and has a very good effects.After optimization,large quantity of space objects and space debris can be monitored with only a few telescopes and certain percentage of measurements can be retained.The result provides a new approach to the strategy of electro-optical space surveillance.