目标、背景和干扰的视景仿真与红外热图像模拟

Visual Simulation Infrared Images Generation of the Target,Background and Interference Flare

文中介绍一种红外图像的仿真方法,通过建模软件 CREATER 建立目标、背景和红外干扰弹的三维模型,构建一个三维场景。根据运动学和动力学方程,使目标和干扰按照各自的运动模式运动,实时地进行目标、背景和红外干扰弹的可见光视景仿真;分析目标、背景和干扰的红外辐射特性,用红外计算模块计算出传感器路径上大气衰减,将经过大气衰减和传感器化的目标辐射强度量化为灰度图,赋予场景中的三维实体,通过视景仿真软件 VEGA 模拟生成红外导引头探测到的含背景、红外干扰弹的目标红外热图像的量化灰度图。

A new method to generate infrared images is introduced in this paper.First,using the software CREATOR to establish three-dimensional geometrical models of the target and IR flares.According to the dynamics and kinematics e- quation of the missile and the target,altitudes and positions information of the missile are solved and the missile attac- king process is real-time simulated visually.IR radiation characteristic of the target,background and the IR flares is an- alyzed,with the consideration of the wave radiation of the sun at different time,wind speed,the relative humidity and 1R radiation attenuation characteristic of the atmosphere.The 1R images of the target with above facts are got and nor- malized to gray color images,which are used to render the geometrical models and obtain dynamic IR images in the mis- siles shooting process.