| 后向散射式激光雷达能见度探测研究 |
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| 引用本文： | 冯帅,蒋立辉,熊兴隆,沈法华,闫朴.后向散射式激光雷达能见度探测研究[J].激光与红外,2009,39(12):1283-1287. |
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| 作者姓名： | 冯帅 蒋立辉 熊兴隆 沈法华 闫朴 |
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| 作者单位： | 1. 中国民航大学电子信息工程学院,天津,300300
2. 盐城师范学院物理系,江苏,盐城,224002 |
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| 基金项目： | 国家自然科学基金项目 |
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| 摘 要： | 根据大气后向散射原理,设计了一台激光雷达能见度仪.在详细介绍系统结构的基础上,阐述了回波信号的数据校准方法,通过采用一种新的基于Fernald方法的迭代算法反演消光系数,获得了较高的能见度测量精度.与美国Belford能见度仪的外场对比实验表明,该激光雷达能见度仪相对测量误差在20%以内.
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| 关 键 词： | 激光雷达 能见度 数据校准 消光系数 |
Backward scattering lidar for visibility detection |
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| FENG Shuai,JIANG Li-hui,XIONG Xing-long,SHEN Fa-hu,YAN Pu.Backward scattering lidar for visibility detection[J].Laser & Infrared,2009,39(12):1283-1287. |
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| Authors: | FENG Shuai JIANG Li-hui XIONG Xing-long SHEN Fa-hu YAN Pu |
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| Abstract: | As a kind of active remote sensing tools,lidar plays an important role in atmospheric parameters measurement.According to the principle of atmospheric backscatter,the lidar for visibility measurement,namely lidar-visibility meter is designed.Firstly,the system structure is introduced in detail,and then the calibration method of return signals is illustrated.By using a new iteration algorithm which based on Fernald method to invert extinction coefficient,high precision of visibility measurement is achieved.The outfield intercomparison experiments with Belford show that the relative measurement error of lidar-visibility meter is within 20%. |
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| Keywords: | lidar visibility data calibration extinction coefficient |
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