激光横风测量技术的研究  

Research on Laser Crosswind Measurement Technology

作　　者：高雪荣 赵培娥[1] 赵才曲[1] 李慧珺 董吉辉 罗杰平 李策[1] 周鼎富[1] Gao Xuerong;Zhao Peie;Zhao Caiqu;Li Huijun;Dong Jihui;Luo Jieping;Li Ce;Zhou Dingfu(Norla Institute of Technical Physics,Chengdu,Sichuan 610041,China)

机构地区：[1]西南技术物理研究所,四川成都610041

出　　处：《激光与光电子学进展》2022年第3期301-308,共8页Laser & Optoelectronics Progress

基　　金：国家重点研发计划(2018YFF01014100);四川省科技计划(2018TZDZX0006)。

摘　　要：基于激光在湍流大气中的光强闪烁现象搭建了一套横风测量系统,并提出了一种趋势匹配算法。对拟合后激光回波信号的趋势序列进行匹配,计算两束回波信号的相关时间时延,并反演出整条路径上的合成风速。用该系统与标准测风雷达分别对117、225、485 m的目标路径进行同步测量,实验结果表明,两台设备的测量数据具有较好的一致性,相关系数分别为0.8567、0.8327、0.7647。此外,该系统采用收发一体化配置方式,具有结构紧凑、质量轻、体积小、便于携带、算法简单、测量精度高的优点。Based on the phenomenon of laser light intensity scintillation in the turbulent atmosphere,this paper builds a crosswind measurement system,proposes a maximum trend matching algorithm to match the trend sequence of the fitted laser echo signal,calculates the time delay of two echo signals,and deduces the synthetic wind speed on the entire path.The system and the standard wind measurement radar are used to simultaneously measure the target path of 117,225,and 485 m respectively.The experimental results show that the correlation coefficients of the measurement data of two devices are 0.8567,0.8327 and 0.7647,which are in good agreement.In addition,the system adopts a transceiver integrated configuration,compact structure,light weight,small volume,easy to carry,simple algorithm,and high measurement accuracy.

关 键 词：遥感 激光雷达 大气湍流 激光测风 横风 趋势匹配 

分 类 号：TN249[电子电信—物理电子学]