Design of a high-spectral-resolution lidar for atmospheric temperature measurement down to the near ground

Zang Zhongming; Shen Xue; Zheng Zhuofan; Zhang Yupeng; Zhou Yudi; Wang Nanchao; Wu Lan; Liu Dong

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Design of a high-spectral-resolution lidar for atmospheric temperature measurement down to the near ground

机译：高光谱分辨率激光雷达，用于近地面的大气温度测量

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In this paper, a high-spectral-resolution lidar (HSRL) for profiling atmospheric temperature from the ground to 10 km is proposed. A double Nd:YAG laser produces the transmitted laser at 532 nm. The backscattering lidar signal is passed through two different saturated iodine-vapor filters and thus obtains molecular scattering signals that can be employed to determine the temperature. A coaxial postposition transceiver is constructed with an off-axis aspheric reflective telescope (OART). The design of the transceiver and that of the OART are demonstrated. With this transceiver, the lidar blind zone where the overlap factor is zero can be reduced greatly, and accurate temperature measurement for full elevation can be achieved. The whole system is optimized with theoretical models based on geometrical optics and statistical error analyses. Monte Carlo simulations display the performance of the designed HSRL, showing that the all-day temperature retrieval error is better than 1.4K from the ground to 10 km. The proposed HSRL is expected to provide more accurate atmospheric auxiliary parameters for the detection of aerosols' optical characteristics. (C) 2019 Optical Society of America

机译：在本文中，提出了一种高光谱分辨率的LIDAR（HSRL），用于从地面分析到10km到10km的分析大气温度。双Nd：YAG激光在532nm处产生透射的激光。背散射LIDAR信号通过两个不同的饱和碘 - 蒸气滤波器，从而获得可用于确定温度的分子散射信号。同轴后置收发器采用轴外非球面反射望远镜（OART）构造。对收发器和OART的设计进行了说明。利用该收发器，可以大大减少重叠因子为零的LIDAR盲区，可以实现完全高度的精确温度测量。基于几何光学和统计误差分析，通过理论模型进行了整个系统。 Monte Carlo仿真显示了设计的HSRL的性能，显示全天温度检索误差从地面距离1.4K到10公里。建议的HSRL预计为检测气溶胶的光学特性提供更准确的大气辅助参数。（c）2019年光学学会

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来源
《Applied optics》 |2019年第35期|共11页
作者
Zang Zhongming; Shen Xue; Zheng Zhuofan; Zhang Yupeng; Zhou Yudi; Wang Nanchao; Wu Lan; Liu Dong;
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作者单位

Zhejiang Univ Coll Opt Sci &

Engn State Key Lab Modern Opt Instrumentat Hangzhou 310027 Zhejiang Peoples R China;

Zhejiang Univ Coll Opt Sci &

Engn State Key Lab Modern Opt Instrumentat Hangzhou 310027 Zhejiang Peoples R China;

Zhejiang Univ Coll Opt Sci &

Engn State Key Lab Modern Opt Instrumentat Hangzhou 310027 Zhejiang Peoples R China;

Zhejiang Univ Coll Opt Sci &

Engn State Key Lab Modern Opt Instrumentat Hangzhou 310027 Zhejiang Peoples R China;

Zhejiang Univ Coll Opt Sci &

Engn State Key Lab Modern Opt Instrumentat Hangzhou 310027 Zhejiang Peoples R China;

Zhejiang Univ Coll Opt Sci &

Engn State Key Lab Modern Opt Instrumentat Hangzhou 310027 Zhejiang Peoples R China;

Zhejiang Univ Coll Opt Sci &

Engn State Key Lab Modern Opt Instrumentat Hangzhou 310027 Zhejiang Peoples R China;

Zhejiang Univ Coll Opt Sci &

Engn State Key Lab Modern Opt Instrumentat Hangzhou 310027 Zhejiang Peoples R China;

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Design of a high-spectral-resolution lidar for atmospheric temperature measurement down to the near ground

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