载波调制激光雷达技术在海洋探测中的应用  

Application of modulated lidar on optical carrier for ocean exploration

作　　者：马泳[1] 冀航[1] 梁琨[1] 林宏[1] 

机构地区：[1]华中科技大学电子与信息工程系武汉光电国家实验室,武汉430074

出　　处：《激光技术》2008年第4期346-349,共4页Laser Technology

基　　金：国家八六三高技术研究发展计划资助项目(2006AA09Z142)

摘　　要：介绍了一种水下探测技术,以激光脉冲信号为载波,将微波信号加载到激光脉冲上进行调制编码,调制编码信息由光信号携带进入水下。在接收端,通过频率滤波实现对编码信号的提取,由编码信号的信号处理实现激光雷达水下目标探测。将该技术与多种抑制海水后向散射的方法进行比较,对载波调制激光雷达在海洋探测应用的特点和研究现状进行了综述。A method of lidar for ocean exploration was presented, where microwave signal was modulated on laser pulses and the modulated optical pluses were transmitted into water. At the receiver, the modulated optical carrier was examined from a frequency filter to render target detection. Compared with other methods which could restrain the backscattering signal, characteristics and current study situation of modulated lidar on optical carrier for ocean exploration were overviewed.

关 键 词：激光技术 载波调制 相干信号处理 激光雷达 海洋探测 

分 类 号：TN958.98[电子电信—信号与信息处理]