低轨红外观测星座时空观测漏洞分析  

Observation Gaps of LEO Infrared Observation Constellation

作　　者：刘冰[1] 李冬[1] 易东云[1] 

机构地区：[1]国防科学技术大学理学院,湖南长沙410073

出　　处：《上海航天》2011年第5期24-29,共6页Aerospace Shanghai

基　　金：国家自然科学基金项目(60902089)

摘　　要：提出了低轨红外观测星座时空观测漏洞概念,分析了漏洞的成因、形状和变化规律,给出了漏洞活动范围、数量和大小的计算方法。仿真计算了三个Walkerδ-星座的漏洞指标,给出了基于漏洞指标的星座评价方法。研究对低轨红外观测星座的设计有一定的指导意义。The concept of the observation gaps happened during the observation of low earth orbit infrared observation constellation was put forward in this paper.The cause,shape and movement of the gaps were studied.The computation methods of the movements,number and size of the gaps were presented.The gaps characteristics of three Walker-δ constellations were calculated by simulation.The evaluation method of the gaps features of the constellations was given out.The research was valuable for the design of the low earth orbit infrared observation constellation.

关 键 词：星座设计 漏洞特性 可见性判断 跟踪传感器 

分 类 号：V41[航空宇航科学与技术—航空宇航推进理论与工程]