强红外热辐射背景下的成像仿真

Imaging Simulation under the Background of Strong Infrared Thermal Radiation

摘要: 由于大气的摩擦和周围流场的对流换热作用，整流罩的温度升高，其产生的气动热辐射效应被红外传感器所接收，形成辐射干扰，使得背景亮度增加，降低了系统对目标的检测和跟踪能力。一般都是用MATLAB软件基于图像处理方法和光线追迹法等常用的红外成像传感器建模仿真方法得到的。针对这种复杂建模仿真的情况，本文将提出一个更快速、简便的新系统红外仿真方法，即利用TracePro软件对整流罩温度场和红外辐射进行建模仿真，将实验结果与前人进行对比分析，最终得到了与前人一致性非常高的仿真数据，说明此方法可以更快速简便地实现红外辐射仿真。

Abstract: Due to the friction of the atmosphere and the convection heat transfer effect of the surrounding flow field, the temperature of the fairing increases, and the aerodynamic thermal radiation effect generated by it is received by the infrared sensor, forming radiation interference, which increases the background brightness and reduces the system’s ability to detect and track the target. Gener-ally, it is obtained by MATLAB software modeling and simulation method of infrared imaging sensor based on image processing method, ray tracing method and other common methods. In the presence of this kind of complex modeling and simulation, this paper will propose a new simple and faster system infrared simulation method, namely the software TracePro was used to model and simulate the fairing of temperature and infrared radiation, and the experimental results were compared with previous analysis. Finally, the simulation data with high consistency were obtained, showing that this method is more quick and easy to achieve the simulation of infrared radiation.