| 激光照明水下目标距离选通成像系统的研制 |
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| 引用本文： | 王荣波,钟森城,李泽仁,周维军,吴廷烈,罗振雄,田建华,何莉华.激光照明水下目标距离选通成像系统的研制[J].强激光与粒子束,2013,25(7):1666-1670. |
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| 作者姓名： | 王荣波 钟森城 李泽仁 周维军 吴廷烈 罗振雄 田建华 何莉华 |
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| 作者单位： | 1.中国工程物理研究院 流体物理研究所, 四川 绵阳 621 900 |
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| 摘 要： | 基于水下目标探测的应用需求，研制开发了一套激光水下距离选通成像系统。系统采用波长532 nm、最大单脉冲能量400 mJ的Nd:YAG脉冲激光器作为照明光源，采用最小选通门宽3 ns、像元10241024的ICCD相机作为门选通器件和图像记录器件，利用DG535型数字脉冲发生器作为精确延时和同步控制器件实现激光脉冲和ICCD相机选通门的同步以实现距离选通功能。利用该系统在某水库进行了水下目标探测实验，实验结果表明，该系统可在6.5倍的衰减长度上识别目标，在8倍衰减长度上发现目标。
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| 关 键 词： | 距离选通 水下目标 ICCD 水下探测 激光照明 |
| 收稿时间： | 2012-10-06; |
Devolvement of underwater range-gated imaging system based on laser illumination |
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| Wang Rongbo,Zhong Sencheng,Li Zeren,Zhou Weijun,Wu Tinglie,Luo Zhenxiong,Tian Jianhua,He Lihua.Devolvement of underwater range-gated imaging system based on laser illumination[J].High Power Laser and Particle Beams,2013,25(7):1666-1670. |
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| Authors: | Wang Rongbo Zhong Sencheng Li Zeren Zhou Weijun Wu Tinglie Luo Zhenxiong Tian Jianhua He Lihua |
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| Affiliation: | 1.Institute of Fluid Physics,CAEP,P.O.Box 919-109,Mianyang 621900,China |
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| Abstract: | A set of underwater range-gated imaging system based on laser illumination was developed for the detection of underwater targets. This system used 532 nm Nd:YAG laser as illumination source whose maximum pulse power was 400 mJ, and used 1024×2024 ICCD as range-gated and imaging device. The minimal gate length of the system was 3 ns. A digital pulse producer DG535 was used as an accurate time-lapse device to synchronize the laser with ICCD range gate to realize the system’s range-gated function. An underwater target detection experiment was carried out in a reservoir with this system. The result of the experiment indicated that the largest target recognition depth is 6.5 times the attenuation length of water for this system and the target in 8 times the attenuation length of water could be found with this system. |
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| Keywords: | underwater target ICCD underwater detection laser illumination |
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