激光照明成像系统为主动光学系统。在低照度情况下,使用激光对远距离目标进行照明,最终利用激光回波在CCD上成像。通过对激光经大气传输后回波功率的研究,对激光照明成像系统作用距离进行推导。利用886nm固体激光器和CCD相机建立实验系统,验证利用激光照明在主动探测中的可行性。

The laser illuminative imaging system is an active optical system. Under low brightness condition,laser is used to illuminate the long-range target,and the returning echo of laser is imaged on CCD. We studied the echo power of laser with attenuation due to transmitting in the atmosphere,and deduced the detecting distance of laser illuminative imaging system. We built up an experiment system by using a 886nm solid laser and a CCD camera,and verified the feasibility that laser illumination system can be used in the active detection.