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| 相干多普勒测风激光雷达研究 | |
| 引用本文： | 竹孝鹏,刘继桥,刁伟峰,毕德仓,周军,陈卫标. 相干多普勒测风激光雷达研究[J]. 红外, 2012, 33(2): 8-12 |
| 作者姓名： | 竹孝鹏 刘继桥 刁伟峰 毕德仓 周军 陈卫标 |
| 作者单位： | 竹孝鹏:中国科学院上海光学精密机械研究所上海市全固态激光器与应用技术重点实验室，上海 201800 刘继桥:中国科学院上海光学精密机械研究所上海市全固态激光器与应用技术重点实验室，上海 201800 刁伟峰:中国科学院上海光学精密机械研究所上海市全固态激光器与应用技术重点实验室，上海 201800 毕德仓:中国科学院上海光学精密机械研究所上海市全固态激光器与应用技术重点实验室，上海 201800 周军:中国科学院上海光学精密机械研究所上海市全固态激光器与应用技术重点实验室，上海 201800 陈卫标:中国科学院上海光学精密机械研究所上海市全固态激光器与应用技术重点实验室，上海 201800 |
| 基金项目： | 国家自然科学基金项目(60908036) |
| 摘 要： | 研制了一套用于大气风速测量的1.064 μm全固态相干激光雷达系统。该系统采用种子注入 Nd∶YAG脉冲单频激光器作为光源。激光的脉冲能量为0.5 mJ，脉冲宽度(FWHM)为80 ns。 利用40 m处的转轮进行了硬靶速度校正实验(速度测量误差的方差为0.23 m/s)，并对大气视向风速进行了测量(探测距离可 到达400 m)。在对系统进行初步优化后，获得了30 ～ 870 m的视向风速分布曲线。 |
| 关 键 词： | 激光雷达 多普勒 相干 测风雷达 |
| 收稿时间： | 2011-12-21 |
Study of Coherent Doppler Lidar System |
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| ZHU Xiao-peng,LIU Ji-qiao,DIAO Wei-feng,Bl De-cang,ZHOU Jun,CHEN Wei-biao. Study of Coherent Doppler Lidar System[J]. Infrared, 2012, 33(2): 8-12 | |
| Authors: | ZHU Xiao-peng LIU Ji-qiao DIAO Wei-feng Bl De-cang ZHOU Jun CHEN Wei-biao |
| Affiliation: | (Shanghai Key Laboratory of All-solid State Laser and Applied Technology,Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Shanghai 201800,China) |
| Abstract: | A 1.064 μm pulsed coherent Doppler lidar prototype for measuring the wind shear in lower troposphere layer was developed. The system used an injection-seeded pulsed Nd:YAG laser as its source. The source had a pulse energy of 0.5 mJ and a pulse duration of 80 ns. A rotation wheel at a distance of 40 m was used to carry out a hard-target speed calibration experiment. The result showed that the system had its speed measurement accuracy of 0.23 m/s. Then, the system was used to measure the line-of-sight atmosphere wind speed. Its detection range was up to 400 m. After optimization, the lidar system obtained the line-of-sight wind speed distribution in the range of 30 m to 870 m. |
| Keywords: | lidar Doppler coherent wind lidar |
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