近地小行星远距离逆行轨道监测布局与效能评估

Layout Analysis and Efficiency Evaluation of Space-Based DRO Monitoring System for Near-Earth Asteroids

针对近地小行星地基监测系统对日不可见盲区限制、监测体系发现与编目能力不足等问题,提出了天基远距离逆行轨道4星监测系统解决方案,据此定量化分析了天基监测系统对上述问题的解决能力,建立了配套的效能评估模型,给出了对应评估软件的实现流程,按照可见光和红外谱段完成了各要素整合后得到评分。通过分析评估,印证了远距离逆行轨道监测布局对地基监测系统不可见盲区全时可见的补偿效能,以及对目标发现编目能力的提升,可为后续天基监测体系的建设提供设计参考。

To address such the problems as the limitation of the invisible zone of the ground-based monitoring system for near-Earth asteroids and the insufficient discovery and cataloguing capabilities of the monitoring system,a solution of a space-based distant retrograde orbit 4-satellite monitoring system was proposed.Then,the space-based monitoring system's to solve the problems mentioned above was quantified and analyzed,and a cosrreponding model for evaluating the efficiency of the system was set up.A process for the implementation of the corresponding evaluation software was given and an integration of the scoring of various elements was completed in accordance with the visible and infrared spectrum.By analyzing and evaluating,the efficiency of the distant retrograde orbit monitoring layout in compensating for the full-time visibility of the invisible zone of the ground-based monitoring system was verified,as well as the enhancement of the capability of target discovery and cataloguing.This research could provide design reference for subsequent construction of space-based monitoring system.