红外成像导引头搜索策略优化设计

An Optimal Design of Search Strategy for Infrared Imaging Seeker

通过对影响红外成像导引头截获概率的视场形状、搜索策略等关键因素进行研究,提出了一种新的六边形轨迹搜索策略,并在常用的视场形状(方形及圆形)条件下,与方形、圆形轨迹搜索策略进行对比分析。结果显示本文设计的六边形轨迹搜索策略在圆形视场条件下具有最大的归一化截获场面积,且其对截获时间和搜索周期的变化均最不敏感。采用的研究方法和获得的结果为红外成像导引头的视场选择和搜索策略设计提供了理论依据,具有重要的工程应用价值。

By studying on the key factors which impact the acquisition probability of infrared imaging seeker, such as the area and the shape of the seeker＇s field of view and the search strategy, a new hexagonal search strategy was proposed and then was compared with the square and round tracks under popular shapes （square and round） of the view. The result indicates that the new proposed hexagonal search strategy can lead to the largest normalized acquisition area under round field of view, and it is not easy to be affected by the change of acquisition time and search cycle. The adopted study methods and acquired results provide theoretical references for the selection of field of view and the design of search strategy for infrared imaging seeker, and have high value of engineering application.