地基设备布站对空间碎片观测能力的影响分析

建立空间碎片地面观测站时,需要用数值仿真工具对其观测能力进行评估和分析.评估观测站能力的重要指标是测站设备对空间碎片的观测量和可观测频度.先进的设备指标和合适的测站位置能够大大提高观测能力.本文使用STK,PROOF等软件,对不同测站雷达和光学设备的观测能力(过境率和探测率)进行了数值仿真和比较分析,得到了一些初步结论,对于空间碎片监测网的设计有一定的参考作用. 

Analysis of Observation Capability of Ground-based Facilities and Stations to Space Debris

When building-up ground-based stations for space debris observations,it is needed first to imitate and analyze the observation capability by numerical simulations.The important criterion of the observation capability of the station is the observational quantity and frequency of space debris observed by the facilities.The observation capability can be improved by using advanced facilities and selecting suitable station positions.In this paper,the software STK and PROOF was used to make numerical simulation and comparison analysis for the observation capability (both passing and detection rate) of radar and optical facilities in different stations.Some preliminary conclusions were gained and might be profitable to the design of the space debris surveillance network.There are a few problems in calculation with existing observation capability evaluating and simulation software,so it is necessary to built new software which is wieldy and convenient and has better and flawless function. Some suggestions were made in the article for the new software.The Performance model of radar and telescope should be optimized.Phased array radar,bistatic radar,scan patterns of both radar and telescope,and hybrid observation of several failities should be easily simulated.Computational efficiency should be advanced to decrease computing time.