基于星敏感器原理的空间微弱小目标自动识别  

Automatic Identification on Weak and Small Target in Space Based on Principle of Star Sensor

作　　者：谭小波[1] 唐武盛[1] 杨建坤[1] 衣文军[1] 贾辉[1] 刘菊[1] 

机构地区：[1]国防科学技术大学理学院,长沙410073

出　　处：《兵器装备工程学报》2016年第3期71-76,共6页Journal of Ordnance Equipment Engineering

基　　金：国家自然科学基金资助项目(61107005)

摘　　要：复杂星空背景下,无特定标识的微弱小目标经常会阻碍航天器的飞行任务;由于目标成像尺寸小、发光特点与星点类似,无法通过常规目标识别手段进行辨识;针对该问题,利用星敏感器绝对测量的优势,提出基于星敏感器原理的空间微弱小目标识别方法;该方法利用鲁棒性较好的网格算法识别采集星图上的大部分恒星,将漏星和目标标记出来,再利用角距法加以区别,实现目标识别;通过实验仿真,完成了对含微弱小目标的具体星图的星点及目标识别,并针对过程中出现的参考星和返回目标结果的选择标准问题进行了讨论分析,验证了基于星敏感器原理的空间微弱小目标识别方法的可行性。Under complex starry background, the weak and small target without any specific identification often hinders spacecraft＇ s mission. The weak and small target which is little with the image size, emitting characteristics similar to stars, can not be identified through the conventional means of target recognition. In view of the problem, using the superiority of star sensor absolute measuring, the method of weak small target recognition based on the principle of star sensor was proposed. The method identify collected most stars in the chart using robust grid algorithm, and marked the omitted star and objectives, then reused the angular distance method to distinguish and realized the target recognition. Through the simulation experiment, the recognition of specific stars and target in the map which contained the weak small target were realized. And in the process, the selection criteria of reference stars and return target were discussed, then the feasibility of the method to identify space weak small target based on principle of star sensor was validated.

关 键 词：星敏感器 微弱小目标 目标识别 网格算法 

分 类 号：O439[机械工程—光学工程]