典型场景下飞翼布局无人机综合隐身能力分析

Analysis of comprehensive stealth capability of flying wing UAV in typical scenarios

为了全面、客观分析飞翼布局无人机在实战中的隐身效果,对飞翼布局无人机的单双站RCS,以及侧向、径向和跨站飞行三种飞行模式,从静态、动态RCS特性和单双站的最大探测距离等方面进行综合隐身能力分析.分析结果表明,飞翼布局无人机侧向飞行时,双站雷达探测并不一定比单站雷达优;径向飞行时,双站雷达对飞翼布局无人机的探测能力较单站雷达更优,隐身材料能显著降低被探测概率;在跨站飞行模式下,单站雷达对其尾部探测效果较好,双站雷达对双站之间的区域探测性能较好,隐身材料对雷达探测率降低效果不明显.这为改进隐身结构设计、综合隐身和优化雷达预警探测系统布局提供可靠有力的技术支撑.

In order to comprehensively and objectively analyze the stealth effect of flying-wing layout unmanned aerial vehicle(UAV)in actual combat,this paper uses the single-dual station radar cross section(RCS)of UAV and the three flight modes of lateral,radial and cross-station flight to analyze the comprehensive stealth ability from the aspects of static RCS characteristics,dynamic RCS characteristics,the maximum detection range of single-dual stations,etc.The results are shown as follows:The dual-station radar detection is not necessarily superior to single-station radar detection when a flying wing UAV is flying sideways.The flying wing UAV being in radial flight,the detection ability of dual-station radar is better than that of single-station radar,and the detection probability can be significantly reduced by stealth materials.In the cross-station flight mode,the single-station radar has a relatively better detection effect on the tail of flying wing UAVs;the two-station radar has a better detection performance on the region between the two stations,but stealth material has no obvious effect on the reduction of radar detection rate.This provides reliable and powerful technical support for improving stealth structure design,comprehensive stealth and the layout optimization of radar early warning detection system as well.