海水衰减系数的多角度后向散射测量技术研究  

A New Measurement Study of Attenuation Coefficient Using Multi-angle Backscattering Signals

作　　者：石晟玮[1] 王江安[2] 蒋兴舟[1] 马治国[1] 

机构地区：[1]海军工程大学兵器工程系,湖北武汉430033 [2]海军工程大学电子工程学院,湖北武汉430033

出　　处：《激光与红外》2008年第5期417-420,共4页Laser & Infrared

摘　　要：提出了一种基于后向散射式激光雷达方程的海水衰减系数现场快速测量方法。该方法通过接收角度的调整,得到不同距离、不同散射角度下的水体散射光信号,并根据由后向散射式激光雷达方程推导出的衰减系数公式计算测量水域的衰减系数。实验结果表明,采用多角度后向散射测量的方法得到的水体衰减系数的测量误差可控制在8%以内,且由实验结果的误差分析可知,随着系统与计算方法的改进,系统的测量误差可得到进一步减小。A new measurement of attenuation coefficient is studied in this paper which was based on the backscattering lidar equation.This measurement obtain different backscattering signals from different distance and scattering angle of sea water by adjusting the receiver angle.Using these data and the formula of attenuation coefficient educing from the back-scattering lidar equation the attenuation coefficient of seawater could be calculated.It turns out that the error of the experiment result using this method is less than 8% and it will be reduced more if the experiment system and the formula could be improved.

关 键 词：海水衰减系数 后向散射 现场测量 接收视场 

分 类 号：TH766.42[机械工程—仪器科学与技术]