光学学报, 2009, 29 (8): 2046, 网络出版: 2009-08-17   

大气信道对激光脉冲延迟时间影响的仿真研究

Study and Simulation of Air Influences on Laser Pulse Transmission Delay Time
作者单位
1 长春理工大学计算机学院, 吉林 长春 130022
2 光电测控与光信息传输技术教育部重点实验室, 吉林 长春 130022
摘要
分析了大气散射和吸收特性, 并进一步研究了大气散射所引起的激光脉冲延迟效应, 定量分析了在不同能见度、不同脉冲传输距离、不同散射系数和单程散射反照率的条件下, 大气信道所产生激光脉冲传输延迟时间, 为探测误差的校正提供了理论依据。通过对仿真结果的分析可知, 在衰减系数不变的条件下, 大气信道的散射越严重, 散射所造成的路径延迟就越大, 激光脉冲传输延迟时间也就越长; 而大气的吸收效应越明显, 激光脉冲传输延迟时间越短。
Abstract
The characteristics of air scattering and absorption are analyzed, and laser pulse delay time domino effect caused by air scattering is studied. Laser pulse transmission delay time caused the air channel, on the conditions of different visibilities, different transmission distances, different scattering coefficients and one way scattering albedo, is quantitatively analyzed. It can provide theory basis for emendation of detection error.The simulation result show that the path delay caused air scattering is greater and laser pulse transmission delay time is longer, when the air channel scattering is more severe and air scattering coefficient is not changed. while the air absorption is more obvious, the laser pulse transmission delay time is less.
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韩成, 白宝兴, 杨华民, 佟首峰, 范静涛, 陈纯毅, 于林韬. 大气信道对激光脉冲延迟时间影响的仿真研究[J]. 光学学报, 2009, 29(8): 2046. Han Cheng, Bai Baoxing, Yang Huamin, Tong Shoufeng, Fan Jingtao, Chen Chunyi, Yu Lintao. Study and Simulation of Air Influences on Laser Pulse Transmission Delay Time[J]. Acta Optica Sinica, 2009, 29(8): 2046.

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