摘要
激光大气湍流传输效应是限制激光武器作战效能的重要因素之一,但目前可靠的激光大气湍流传输效应分析手段较少。为此,针对激光大气湍流传输效应分析的需求,提出了基于相位屏的高斯激光大气湍流传输效应分析方法。首先,利用功率谱反演法来模拟大气湍流相位屏,将大气湍流等价为多个相位屏的叠加;然后,根据高斯光束通过湍流后形成的光斑图像,分析光束展宽与光束倾斜效应;最后,与激光仿真软件EasyLaser获得的理论值进行了对比。研究结果表明:在作战距离1~10 km下,光束倾斜角的拟合均方差小于3μrad,光束扩展角拟合均方差小于4.5μrad,证明了该方法的可靠性。
The laser atmospheric turbulence transmission effect is one of the important factors limiting the combat effectiveness of laser weapons,but there are few reliable methods for analyzing the effect.In order to meet the needs of the analysis of the atmospheric turbulent transmission effect of the laser,a Gaussian laser atmospheric turbulent transmission effect analysis method based on the phase screen was proposed.Firstly,the power spectrum inversion method was used to simulate the phase screen of atmospheric turbulence,and the turbulence was equivalent to the result of the superposition of several phase screens.Secondly,according to the light intensity map of the Gaussian beam after passing through the turbulent flow obtained at the receiving surface,the beam broadening and beam drift effects were analyzed.Finally,it was compared with the theoretical value obtained by the laser simu-lation software EasyLaser.The results show that the fitting mean square error of the beam tilt angle is less than 3μrad and the fitting mean square error of the beam spread angle is less than 4.5μrad in the combat distance of 1~10km for laser weapons,thus the proposed method is reliable.
作者
石教炜
张鑫
孙世岩
谢君
石章松
SHI Jiaowei;ZHANG Xin;SUN Shiyan;XIE Jun;SHI Zhangsong(College of Weaponry Engineering,Naval Univ.of Engineering,Wuhan 430033,China;Equipment Project Management Center,Naval Equipment Department,Beijing100141,China)
出处
《海军工程大学学报》
CAS
北大核心
2023年第3期75-80,共6页
Journal of Naval University of Engineering
基金
国家部委基金资助项目(2019-JCJQ-JJ-049)。
关键词
功率谱反演法
大气湍流传输效应
激光武器
高斯光束
power spectrum inversion
atmospheric turbulent transport effects
laser weapon
Gaus-sian beam
