气动光学效应对激光测距系统的干扰分析
时间:2020-12-06 13:02 来源:毕业论文 作者:毕业论文 点击:次
| 摘要激光测距技术在静态环境中的使用早已成熟，但在高速动态环境中，由于气动光学效应，光不再沿直线传播，会给测距带来很大的误差。文章介绍了四种传统的激光测距方法的原理，并且借助分析激波对前置激光引信光程的影响和基于湍流涡模型的气动光学效应影响参数，指出了一些影响气动光学效应的因素。结果表明，飞行器的速度，高度，弹头的大小，光波波长，大小涡流的数量和分布以及涡流的尺度都会对气动光学效应产生影响，为下一步继续对气动光学效应进行研究提供了依据。60390 毕业论文关键词 激光测距 气动光学效应 前置激光引信 湍流涡模型 Title Analysis of interference of aero-optical effectson the laser ranging systemAbstractLaser ranging technology used in a static environment has already beenmature, but in the high-speed dynamic environment the light no longertravels in straight lines due to aero-optical effects, which will causea great deal of distance measurement error. The article introduces fourmethods of traditional principles of laser ranging, and points out somefactors that affect the aero-optical effects by analyzing the shock wave’sinfluence on the prepositional laser fuse’s optical path and influenceparameters of aero-optical effects based on turbulence vortex model. Theresults showed that the aircraft's speed, altitude, warhead size, lightwavelength, the number and distribution of different sizes of eddy andeddy’s scale will have an impact on the aero-optical effects, and provideda basis for the next step to continue conducting research on aero-opticaleffects. Keywords Laser ranging; Aero-optical effects; Prepositional laser fuse; Turbulence vortex model 目次 1引言.1 2研究背景及现状..2 2.1国外研究现状.2 2.2国内研究现状.2 2.3本文主要讨论内容..6 3激光测距..7 3.1激光测距的理论基础.7 3.2激光测距的常用方法.7 3.3脉冲激光测距机的测距误差分析11 4气动光学14 4.1气动光学简介..14 4.2基于两种基本模型对影响气动光学效应参数的分析.14 5工作总结32 结论.33 致谢.34
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