摘要
根据激光雷达原理并结合实际实验经验,设计了一套在计算机程序控制下的激光雷达光束自动准直系统。通过控制激光发射导向镜的位置,使激光在东西和南北方向扫描,对接收到的回波信号分析处理,得到最后方位使收发系统平行。操作过程每次只需10～20 min,精度可达到0.1 mrad。系统应用到大气温度监测中,将测量计算结果与模式CIRA86数据进行对比分析表明,反演高度30～45 km处误差1～3 K,45～65 km处误差2～5 K。
According to principle of lidar and experiences, the automatic alignment system of lidar beam controlled by computer procedure has been designed. By controlling the position of gimbal-mounted mirror, the direction of light beam scanning was east-west and south-north. Echo signals were analyzed, and final position was obtained to make transmitting and receiving systems parallel. The process needs 10 -20 rain for once, and accuracy is about 0.1 mrad. In atmospheric temperture monitoring, measuring results compared with CIRA86 data. The error Of altitude at 30--45 km is 1-3 K, 2-5 K for 45-65 km.
出处
《中国激光》
EI
CAS
CSCD
北大核心
2009年第9期2341-2345,共5页
Chinese Journal of Lasers
作者简介
刘小勤（1967-），女，博士，副研究员，主要从事激光雷达及计算机应用方面的研究。E-mail：xqliu@aiofm．ac.cn
