摘要
基于地面可见光相机探测建立了地球静止轨道上空间非自发光目标的数学辐射模型,利用辐射传输的基本原理,分析了平面目标亮度与探测时间、纬度之间的关系,推导了系统探测能力与光学系统参量及曝光时间之间的关系,简要的分析了杂光对系统曝光时间的影响,理论模型与目前相关试验结果基本接近,表明GEO上空间目标的可见光相机探测是可行的.
Space debris is offals produced accidentally and deliberately while people are carrying out space activities and are no longer serving any function.It is the main pollution sources of the space environment.The space debris may stay in space for a long time and generate new smaller space debris because of its breakup caused by explosions and collision which then increase the threat to space vehicles,especially to manned space flights.Geosynchronous Earth Orbit （GEO） is the one and only orbit.Detecting the debris in GEO is necessary.Mathematics model of unilluminant space target in GEO is established.Based on the basic theory of radiation transmission,the relationships between lightness and detecting time and altitude are analyzed,and the relationships between detection ability and parameters of optics are demonstrated.The effect of stray light in system has been analyzed.The correctness of the model and formula are proved by test,so GEO target visual detection is feasible.
出处
《光子学报》
EI
CAS
CSCD
北大核心
2007年第5期905-908,共4页
Acta Photonica Sinica
