基于距离选通成像系统的水下目标探测技术研究  

Underwater objects detection using range-gated imaging system

作　　者：陈超[1] 杨鸿儒[1] 黎高平[1] 吴磊[1] 俞兵[1] 杨斌[1] 吴宝宁[1] 张博妮[1] 吴李鹏[1] 

机构地区：[1]西安应用光学研究所,陕西西安710065

出　　处：《应用光学》2011年第4期662-666,共5页Journal of Applied Optics

摘　　要：基于距离选通原理,采用波长为532 nm、脉冲宽度为20 ns的Nd∶YAG激光器和距离选通ICCD成像系统,通过脉冲激光照射水下目标,ICCD系统同步选通接收,对漫射衰减系数约为0.45的8 m水深内的水下目标的成像能力进行了实验研究,获得了10 ns的图像选通效果和7 m的探测能力。实验结果表明,距离选通成像方法是一种快速、有效的水下目标探测和识别手段。Based on range-gate principle,a Nd ∶ YAG laser,whose frequency was doubled to yield a wavelength of 532 nm,was used as the light source,and range-gated Integrated Circuit Card Device（ICCD） system was used as the receiver.The experiment with range-gated method was conducted in 8 m depth water with diffuse attenuation coefficient k≈0.45.Maximum underwater detection depth of 7 m and 10 ns image gate were achieved.The experimental results show that the range-gated imaging method is a rapid and effective technology for underwater object detection and reorganization.

关 键 词：成像系统 距离选通 ICCD 水下目标探测 

分 类 号：TN249[电子电信—物理电子学]