| 地基激光测风雷达的光束扫描及风场反演 |
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| 引用本文： | 胡宏伟,胡企铨.地基激光测风雷达的光束扫描及风场反演[J].强激光与粒子束,2001,13(1):24-26. |
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| 作者姓名： | 胡宏伟 胡企铨 |
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| 作者单位： | 中国科学院 上海光学精密机械研究所，上海 201800 |
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| 基金项目： | 国防863－2基金资助课题 |
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| 摘 要： | 激光测风雷达通过多普勒频移来确定激光束视线方向上的大气风场的速度矢量。由这些测得的矢量可反演大气风场群速的速度矢量。在本文中，我们将讨论利用单一LDV系统，激光束的扫描方式采用圆锥扫描，在扫描圆锥的垂直截面上取四个正交点上的多普勒风速矢量。通过这四个矢量，利用空间解析几何的知识，最终推导出观测视场上风场的水平和垂直方向的矢量分量。
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| 关 键 词： | 激光雷达 多普勒频移 风场矢量 |
| 文章编号： | 1001－4322（2001）01－0024－03 |
| 收稿时间： | 2000/4/24 |
| 修稿时间： | 2000年4月24日 |
The beam scanning and inversion method for detecting wind by lidar |
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| HU Hong-wei,HU Qi-quan.The beam scanning and inversion method for detecting wind by lidar[J].High Power Laser and Particle Beams,2001,13(1):24-26. |
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| Authors: | HU Hong-wei HU Qi-quan |
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| Institution: | Shanghai Institute of Optics and Fine Mechanics，Chinese Academy of Sciences，P.O.Box 201800, China |
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| Abstract: | Utilizing lidar to obtain the wind velocity along the line of sight by Doppler shift, then inverting these velocity vectors to real atmosphere wind group speed is a very important purpose of lidar. The technique which utilize a conical scanning manner known as velocity azimuth display based on single LDV system is described. The horizontal and vertical wind sect of the observed field can be gained by spatial analytic geometry's operation and analysis on vectors of the four orthogonal points on the scanning cone's vertical section. |
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| Keywords: | lidar Doppler shift vector of wind field |
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