基于距离选通技术的水下目标成像系统研究  

Research of underwater target imaging system based on range gating technigue

作　　者：刘征宇 徐利刚 

机构地区：[1]海军驻无锡地区军代表室,江苏无锡214035

出　　处：《光学仪器》2010年第1期82-85,共4页Optical Instruments

摘　　要：针对水下目标成像的特殊环境,提出将距离选通技术应用于水下目标的成像,距离选通技术对于减小水体后向散射光、水中微粒散射光,提高目标图像信噪比以及增加水下探测深度,是一种有效的方法。详细介绍距离选通水下目标成像系统的基本结构,以及系统关键部件的技术要求。实验表明:距离选通技术有效地提高了水下目标的成像质量。选通时间是影响成像质量的主要因素,单脉冲激光能量和水体衰减系数是影响系统探测深度的主要因素。Contraposed to the special environment of the target image under water, it is introduced that the range gating technique applies to target image under water. Range gating is a kind of effective method that can eliminate backscattered light and the particulate scattered light underwater, increasing the SNR of the target image and add the deepness of the underwater detecting. It is introduced the elementary structure of the underwater target imaging system and the technique parameter of system. Experimental results show that the range gating raise the target imaging quality underwater effectively. The gate open time is main factor which influence the image quality, single pulse laser energy and water attenuation coefficient is main factor which influence the system detection depth.

关 键 词：距离选通技术 水下目标成像 选通时间 

分 类 号：TN2[电子电信—物理电子学]