| 星载钠荧光多普勒激光雷达性能分析 |
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| 引用本文： | 闫召爱,胡雄,郭商勇,程永强,郭文杰,潘艺升.星载钠荧光多普勒激光雷达性能分析[J].雷达学报,2015,4(1):99-106. |
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| 作者姓名： | 闫召爱 胡雄 郭商勇 程永强 郭文杰 潘艺升 |
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| 作者单位： | 1.(中国科学院空间科学与应用研究中心 北京 100190)2.(中国科学院大学 北京 100049) |
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| 基金项目： | 中国科学院空间科学预先研究项目(XDA04077400,XDA04072300)资助课题 |
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| 摘 要： | 星载钠荧光多普勒激光雷达可以用来测量全球的中间层顶及低热层区域的大气风场、温度及钠原子数密度等。为了从理论上分析星载钠荧光多普勒激光雷达的可行性，该文依据激光雷达方程，对星载钠荧光多普勒激光雷达的回波信号强度以及大气参数测量精度进行仿真计算。分析结果显示在使用400 km轨道高度，30.0观测角度，9.0 W激光发射功率，1.0 m接收望远镜口径，2.0 km垂直距离分辨率，30.0 s信号累积时间情况下，可获得0.8 m/s视线风速测量精度，1.5 m/s水平风速测量精度和2.5 K温度测量精度。
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| 关 键 词： | 激光雷达 中高层大气 多普勒 钠荧光 |
| 收稿时间： | 2014-11-21 |
Performance Analysis of Spaceborne Sodium Fluorescence Doppler Lidar |
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| Yan Zhao-ai;Hu Xiong;Guo Shang-yong;Cheng Yong-qiang;Guo Wen-jie;Pan Yi-sheng.Performance Analysis of Spaceborne Sodium Fluorescence Doppler Lidar[J].Journal of Radars,2015,4(1):99-106. |
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| Authors: | Yan Zhao-ai;Hu Xiong;Guo Shang-yong;Cheng Yong-qiang;Guo Wen-jie;Pan Yi-sheng |
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| Affiliation: | 1.(Center for Space Science and Applied Research, Chinese Academy of Sciences, Beijing 100190, China)2.(University of Chinese Academy of Sciences, Beijing 100049, China) |
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| Abstract: | The spaceborne sodium Doppler lidar can be developed to measure global wind, temperature and sodium number density in the mesopause and lower thermosphere region. In order to analyze the feasibility of the lidar, simulation calculations about backscattering signals and measurement accuracy have been done in this paper. The analyzed result shows that the line-of-sight wind accuracy, horizontal wind accuracy and temperature accuracy are 0.8 m/s, 1.5 m/s and 2.5 K when the height of satellite orbit is 400 km, observational angle is 30.0, laser power is 9.0 W, receiver diameter is 1.0 m, vertical range resolution is 2.0 km, and signal integrated time is 30.0 s. |
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