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1064nm激光常用于大气环境监测。以激光信号在传输介质中布里渊散射频移量模型为基础,依据相关大气数据建立1064nm激光大气中布里渊散射信号检测的大气探测模型。该模型将布里渊频移量归一为只与大气高度这一单参数相关的函数,详细地描述了0～1000km范围内大气布里渊频移量的连续分布状态。结果表明在0～1000km的海拔高度范围内,1064nm激光大气的布里渊散射频移量以非单调的形式分布在0.5～1.2GHz之间。
1064nm laser commonly used in atmospheric environment monitoring. Based on the Brillouin scattering frequency shift model of the laser signal in the transmission medium, an atmospheric detection model based on Brillouin scattering signals in the 1064 nm laser atmosphere was established based on the relevant atmospheric data. In this model, the Brillouin frequency shift is normalized to a single parameter related only to atmospheric height, and the continuous distribution of atmospheric Brillouin frequency shift in the range of 0 ~ 1000km is described in detail. The results show that the frequency shift of Brillouin scattering in the 1064nm laser atmosphere ranges from 0.5 to 1.2GHz in a non-monotonic form over the altitude range from 0 to 1000km.