空空导弹多光谱红外成像制导技术研究

从空空导弹红外制导系统的需求出发，探讨多光谱成像制导技术的研究思路与系统设计方法．介绍了共光路与分光路多种多光谱光学系统的结构设计，分析了多光谱红外导引技术中的光谱细分、多光谱红外探测器、系统匹配、多传感器信号融合及光谱特征选取等关键技术。在此基础上给出了一种空空导弹双色成像探测系统实例，该系统利用共光路系统设计实现双波段红外成像探测，并针对红外诱饵干扰进行了基于光谱特征的目标跟踪与抗干扰算法，实验验证该系统具有优于单波段成像导引头的目标识别与干扰抑制能力，显示出了多光谱成像导引头是空空导弹的发展方向。

IR guiding technology based on multispectral imaging for air to air missile

Multispectral imaging technology for air to air missile is discussed in this paper.The design methods of co-optics and slit multispectral optical system are introduced. The key technologies of infrared multispectral guiding technology, such as band subdivision, multispectral infrared detector, system matching, multisensor signal fusion and spectral feature extraction are analyzed. An example of the air to air missile is given and a dual band infrared imaging detection using co-optics-light-path is realized. The target tracking based on spectral characteristics is conducted in allusion to IR decoys countermeasure. Experimental results show that the target recognition and disturbing restraint of the system is superior to signal band imaging guiding head.