红外成像型空空导弹目标自动识别技术

Investigation of Automatic Target Recognition Technique for Infrared Imaging Air-to-Air Missile

针对红外导弹和红外诱饵弹的对抗,构建了红外导引头图像探测器的透视投影几何模型。基于模型证明了飞机和目标在不同距离和相对飞行速度下,成像序列中相邻两帧图像间飞机目标的相似性,并且提出了适合导弹的目标快速识别算法,该算法是基于当前帧图像与前一帧图像的目标特征匹配的。最后以实测的飞机及诱饵红外图像数据对文中提出的算法进行了仿真,仿真结果表明了算法对目标识别是可行和有效的,并且能够满足较高实时性的要求。

For the countermeasure of infrared missile and decoy aircraft ,the paper constructs the image progecting model of IR-seeker,demonstrates the simularity of target images between two frames of image sequence obtained by the image detector, proposes the fast target recognition algorithm suitable for missile, the algorithm is based on the target ＇ s characteristics matching between two frames of image sequence. Finally, some experiments with real infrared images of aircraft and decoy are performed, the experimental results show that the algorithm provided in this paper is feasible and effective, and it satisfies the real-time demand of infrared imaging guidance air-to-air missile.