摘要
在CCD立靶测量系统工作原理的基础上,从CCD的灵敏度与曝光量、背景照度与目标照度、CCD的分辨能力和目标与背景的对比度等几个方面研究CCD立靶测量系统的目标捕获性能,给出了相关的计算方法.特别对暗、小、快目标的全天时捕获,提出了采用激光选通照明的方法来保证系统的捕获率.通过实验验证了计算方法和照明方法的有效性.
Based on the working theory of the CCD vertical target measurement system, target capture ability of the CCD vertical target measurement system, as for the aspects including the sensitivity, the exposure,and the resolution of CCD, the degrees of illumination, and the contrast gradient between background and targets, were researched. The concerning calculation methods were given. Especially as for hour of a whole day captures for those target which were dark, small,and quick moving,the method of selecting wave band laser illumination was presented to guarantee catching rate of the system. And, the efficiency of the methods of calculation and illumination were verified by experiments.
出处
《光子学报》
EI
CAS
CSCD
北大核心
2009年第6期1539-1542,共4页
Acta Photonica Sinica
关键词
CCD立靶
捕获
激光照明
CCD vertical target
Capturing
Laser illumination
