基于OSG的红外导引头视景仿真系统研究与实现

Research on Scene Simulation of IR Seeker and Its Implementation Based on OSG

红外导引头视景仿真在军事领域中具有重要的应用价值。基于OSG(open scene graph)平台,利用目标与海洋背景的红外特征、大气的传输特性和探测器噪声,结合导引头作战使用功能,实现了一个参数可调的、基于海洋背景的红外导引头3D视景仿真系统;它能根据仿真场景的经纬度、仿真时间、大气及海洋温度自动生成导引头的红外视景,并实现搜索、跟踪目标功能。实验结果表明,系统帧速达60帧/s以上,能够满足实时性仿真的要求。

The scene simulation of IR seeker has application value in military field. Basing on OSG （OpenSceneGraph） engine, by using the radiation character of object and sea background, radiation transmittance character of atmospheric, and detector noise, considering the operational ability, a 3 D infrared simulation framework was developed based on IR sea background. This system can generate the IR scene varying with the scene longitude and latitude, simulation time and temperature of air and sea, and can achieve seeker ability of searching and tracking. The experiment shows that the system frame rate achieves 60 fame/s, and meets the requirement of real-time simulation.