中文摘要：

分析并仿真了大气传输引起的红外图像退化。从大气湍流和气溶胶散射、吸收的物理过程入手,分析了大气调制传递函数（MTF）及其造成的图像退化。提出了大气作用效果的计算机仿真方法,在目标距离为1 km、离地高度2 m、Cn2=1.0×10-13 m-2/3、光学系统为f/4.0、f=600 mm的情况下,针对远距离水平传输方向的红外成像系统进行了大气作用效果仿真。结果表明：大气传输引起的红外图像退化主要体现在由湍流引起的程度不同的局部模糊及图像跳动。

英文摘要：

The analysis and simulation of the infrared image degradation by aero transmission were presented.The atmosphere MTF and the degradation effects of the image were pointed by analyzing the physical process of atmospheric turbulence,aerosol scattering and absorption.The simulation methods of the atmospheric effects were presented,and the computer simulation of atmospheric effects was done for the infrared imaging system of long-distance horizontal transmission on condition that the target distance was 1 km;the height above ground was 2 m;C2n =×1.0×10-13 m-2/3,optical system is f/4.0 and f=600 mm.The simulation results show that the infrared image degradation caused by aero transmission are mainly focused on the local fuzzy and image dithering in various degree caused by atmosphere turbulence.