红外成像导引头弹道终端跟踪能力研究

The Investigation of Tracking Ability for Infrared Imaging Seeker during Endgame

分析了弹道终端红外成像导引头跟踪盲区形成的原因,提出了采用局部图像跟踪算法减小跟踪盲区的思想,讨论了飞机目标局部图像跟踪部位的选取原则。通过分析弹目平行交会模型,对影响弹道终端导引头跟踪能力的诸要素进行了定量研究,并结合某型红外成像导引头的技术参数,对其终端跟踪能力进行了计算,计算结果表明,导引头的最大跟踪角速度、导引头图像探测器的帧频、弹目相对速度是影响导引头终端跟踪能力的主要因素。最后,提出了提高图像导引头弹道终端跟踪能力的几点措施。

The reason of blind area generation during endgame was analyzed and the approach of blind area reduction through partial image tracking algorithm was proposed, the principle of tracking position selection for aircraft was discussed. The factors that affect the tracking ability of infrared imaging seeker during endgame were quantitatively studied through analysis of the model of parallel encounter of missile and target. Based on the above analysis and the technical parameters of a certain type of infrared imaging seeker, the tracking ability of this seeker was calculated. The result of calculation show that the maximum tracking angular velocity, the frame rate of image sensor and relative velocity were the main factors that affect tracking ability of infrared imaging seeker during endgame. Finally, some suggestions for improving the tracking ability of imaging seeker were proposed.