Demonstration of measuring sea fog with an SNSPD-based Lidar system.
Demonstration of measuring sea fog with an SNSPD-based Lidar system.
复制标题
使用基于 SNSPD 的激光雷达系统测量海雾的演示
DOI：
10.1038/s41598-017-15429-y
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发表时间：
2017-11-08
影响因子：
4.6
通讯作者：
Wu P
中科院分区：
文献类型：
--
作者：
Zhu J;Chen Y;Zhang L;Jia X;Feng Z;Wu G;Yan X;Zhai J;Wu Y;Chen Q;Zhou X;Wang Z;Zhang C;Kang L;Chen J;Wu P
随着海洋活动的迅速发展，海雾监测变得越来越重要。激光遥感是监测海雾的一种有效手段，但在远距离上仍存在挑战。采用超导纳米线单光子探测器（SNSPD）实现了远距离海雾激光雷达，将探测范围扩大到直径180公里的范围。最后，将该系统应用于米氏散射天气预报激光雷达系统中，并利用已知岛屿的基准距离测量对系统进行了验证。激光雷达系统获得了42.3 ~ 63.5 km和53.2 ~ 74.2 km范围内的雾回波信号分布。然后根据雾的分布推断出雾的浓度和速度，与天气预报一致。海雾的高度约为200米，而由于地球的曲率半径，在这个高度的能见度约为90公里。因此，在SNSPD极高信噪比的条件下，基于SNSPD的激光雷达的海雾测量能力接近理论极限。
The monitor of sea fogs become more important with the rapid development of marine activities. Remote sensing through laser is an effective tool for monitoring sea fogs, but still challengeable for large distance. We demonstrated a Long-distance Lidar for sea fog with superconducting nanowire single-photon detector (SNSPD), which extended the ranging area to a 180-km diameter area. The system, which was verified by using a benchmark distance measurement of a known island, is applied to the Mie scattering weather prediction Lidar system. The fog echo signal distribution in the range of 42.3∼63.5 km and 53.2∼74.2 km was obtained by the Lidar system. Then the fog concentration and the velocity of the fog were deduced from the distribution, which is consistent with the weather prediction. The height of the sea fog is about two hundred meter while the visibility at this height is about 90 km due to the Earth’s radius of curvature. Therefore, the capability of this SNSPD-based Lidar was close to the theoretical limit for sea fog measurements for extremely high signal-to-noise ratio of SNSPD.
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影响因子：
4
作者：
Gol'tsman, GN;Okunev, O;Sobolewski, R
通讯作者：
Sobolewski, R
影响因子：
3.3
作者：
Marsili, F.;Bitauld, D.;Fiore, A.
通讯作者：
Fiore, A.
用于大气边界层风和能见度探测的微脉冲上转换多普勒激光雷达
影响因子：
3.6
作者：
Xia, Haiyun;Shangguan, Mingjia;Pan, Jianwei
通讯作者：
Pan, Jianwei
影响因子：
2.1
作者：
Zhang, L.;Zhao, Q.;Shi, W.
通讯作者：
Shi, W.
影响因子：
1
作者：
Semenov, A;Engel, A;Hübers, HW
通讯作者：
Hübers, HW