上行激光脉冲时域展宽的数值模拟  

Numerical simulation of time-domain broadening of upward laser pulse

作　　者：吴方平[1] 章曦[1] 杨军[1] 王慧[1] 苗仁德[1] 马书云[1] 刘翠翠[1] 

机构地区：[1]解放军理工大学理学院,江苏南京211101

出　　处：《激光与红外》2016年第2期154-158,共5页Laser & Infrared

基　　金：解放军理工大学理学院青年科研基金项目(No.LYQNJJ09)资助

摘　　要：基于蒙特卡罗方法,模拟了海洋上行激光脉冲接收光子数目和光子能量的时间分布受水下激光源深度和海面风速的影响情况。结果表明,海面风速一定时,随着激光源深度的增加,接收光子数目和接收光子能量的峰值时间延迟增加;峰值高度和峰值宽度呈增加趋势,且出现多个次峰值。激光源深度一定时,对于不同的海面风速,接收光子数目和接收光子能量的峰值时间,峰值高度和峰值宽度都非常接近,表明风速对激光脉冲的时间扩展效应不起主导作用。Based on Monte Carlo method,the affect of laser source depth and wind speed on temporal distribution of the number and energy of received photons were simulated. The simulation results show that for a certain wind speed,the peak time delay of received photons＇ number and photons＇ energy increases as the laser source depth increases;the peak height and peak width also increase and sub peaks appear. At a certain laser source depth,the peak time,peak height and peak width of received photons＇ number and received photons＇ energy are all very close for different wind speeds,which means the wind speed doesn＇t play a main role in the time broadening effect of laser pulse.

关 键 词：激光探测 时域展宽 蒙特卡罗方法 上行激光 

分 类 号：TN958.98[电子电信—信号与信息处理]