基于FEKO的引信目标近场动态散射特性实时仿真

引信目标的近场散射特性受到天线方向图、目标局部照射、弹目交会状态等因素的影响,计算过程复杂。首先提出了一种基于FEKO的目标近场散射特性实时仿真方法,然后根据引信作用段的特点建立了弹目交会模型,对引信目标的近场动态散射特性进行了实时仿真,仿真结果表明近场散射强度与导弹脱靶量和目标照亮区有直接关系,脱靶量越小,散射强度相对越大,且弹目距离较近时,由于照亮区的不同散射强度将出现较大起伏。

A Real-time Simulation Method of Fuse Target Near-Field Dynamic Scattering Characteristics Based on FEKO

In view of the facts that fuse target near-field scattering characteristics is affected by series of factors such as antenna pattern, target''s partly illuminated and missile and target encounter state, and calculating process is complex, in this paper, a real-time simulation method of target near-field scattering characteristic is presented based on FEKO. Then, a model of missile and target encounter is established in view of the characteristic of fuse operation phase, fuse target near-field dynamic scattering characteristic is calculated real-timely. The result shows that the near-field scattering intensity has something to do with the target''s illuminating parts and the missile miss distance. The smaller, the missile miss distance, the stronger, the scattering intensity, and the scattering intensity will present a big undulation cause in the different illuminating parts when a missile is very close to target.