摘要
依据美国ANSI标准，结合1999～2004年间地基激光雷达探测的合肥地区沙尘暴消光廓线，统计分析了机载大气探测激光雷达探测沙尘时偏振532nm垂直通道和1064nm通道所需的最小激光能量，模拟计算了机载大气探测激光雷达探测沙尘暴时在0-12km高度范围内不同激光束发散角和激光脉冲能量比例的532nm和1064nm激光脉冲眼睛安全最大阈值能量。以合肥地区沙尘暴消光特性的统计结果、地面人眼安全标准和两个“瓶颈”通道的探测能力为依据提出两种激光脉冲能量配置方案。
The minimum laser pulse energy to detect sand-dust with the polarized 532 nm perpendicular channel and 1064 nm channel with airborne atmospheric lidar are analyzed statistically according to American ANSI standard and sand-dust extinction coefficient profiles detected by ground-based lidar from 1999 to 2004 year in Hefei area. The laser pulse eye-safety maximal energy with different beam divergence angles and energy ratio （532 nm and 1064 nm） are simulated in 0h 12 km altitude is simulated for the airborne atmospheric lidar. Two laser pulse energy distribution schemes are presented according to the eye-safety standard on the ground, detection ability for two ＂bottle-neck＂ channels and statistical results of sand-dust extinction profile in Hefei.
出处
《光学学报》
EI
CAS
CSCD
北大核心
2007年第11期1913-1919,共7页
Acta Optica Sinica
基金
国家重大科技基础设施建设项目(航空遥感系统)资助课题
