摘要
研制了一套用于大气风速测量的1.064μm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。
A 1.064μm 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.
出处
《红外》
CAS
2012年第2期8-12,共5页
Infrared
基金
国家自然科学基金项目(60908036)
作者简介
竹孝鹏(1980-),男,浙江嵊州人,博士研究生,主要从事激光测风雷达方面的研究。E-mail:edifiers2008@163.com
