摘要
空间碎片是在地球轨道上超高速运行的物体,安装在航天器上的空间碎片探测系统需要具备造价低廉、数据分析处理及时的特点。利用计算机双目立体视觉的基本原理,提出一种由2个红外探测器组成的空间碎片红外探测系统以及相应的空间点目标定位算法。根据2个红外探测器具有相同背景图像的特点,将图像减法用于背景剔除,以简化图像中空间碎片边缘提取算法。通过在2幅图像中提取空间碎片的边缘,导出了空间碎片中心像点在2幅图像中位置,并利用空间点目标定位算法给出了空间碎片在航天器固连坐标系中的位置。该系统不仅造价低廉,也实现了空间碎片的快速定位。仿真结果证明了系统及其定位方法的可行性。
The space debris is the collection of objects running at hypervelocity in orbit around the earth, therefore the space debris detection system mounted on spacecraft has to be of low-cost and fast algorithm for data analysis and processing. Based on the basic theory of computer binocular stereo vision, an itffrared detec- tion system for space debris of two infrared detectors is presented and a corresponding position algorithm of space-point-object is given. According to the characteristic that the two images from two infrared detectors have the same background, image subtraction is applied to background subtraction so as to simplify the edge detection algorithm. By edge detection for the space debris images, the center positions of the space debris in the two ima- ges are educed, and consequently the position of the space debris in spacecraft reference frame is determined by means of the position algorithm of space-point-objects. The infrared detection system not only is of low-cost, but also can realize fast position. Simulation result validates the feasibility of the system and its corresponding position algorithm.
出处
《系统工程与电子技术》
EI
CSCD
北大核心
2013年第9期1841-1845,共5页
Systems Engineering and Electronics
基金
国防科工局空间碎片"十二五"项目(k0201210)资助课题
关键词
空间碎片
定位
红外探测器
航天器
space debris
positioning
infrared detection system
spacecraft
