天基雷达观测空间碎片的研究现状及关键技术分析

Critical Technologies of the Space Borne Radar for Small Space Debris Detection

文章针对空间碎片观测中尚未得到确切观测数据的危险碎片的观测需求,综合分析了国内外的研究水平和现状,对天基雷达观测的需求和关键技术开展研究,提出了天基空间碎片观测有三个关键技术需要解决,即如何确定雷达工作体制和平台轨道以提高观测效率,如何有效探测尺度只有几个毫米-几个厘米的细小目标,如何对观测到的空间碎片进行分类和精确定轨。

The article focuses on the space borne detection of the dangerous space debris with diameter from 5mm to 7cm. The small, high-speed debris around the low earth orbit are damage to the satellites and the spacecrafts. As the ground instruments could not detect the dangerous space debris effectively, the researchers have tried to put the radar on the low earth orbit to get the information of them. By analyzing the relative job of NASA, Russia and France Space Agency the article put forward three critical technologies about space borne detection of the dangerous space debris.