基于编码基因的多弹头落点激波定位

Multi-warhead Impact Shock Wave Location Based on Genetic Code

针对目前子母弹多弹头没有利用激波进行落点定位的空白,提出采用激波传感器组成测量阵列,对多个超音速弹头产生的激波信号进行采集处理,通过各传感器信号响应时间延迟估算得到每个超音速弹头的运动轨迹及落点坐标。对于辨识不同弹头激波信号到达传感器阵列的次序,引入编码基因及敏感系数概念,用敏感系数判断搜索出优良基因,根据激波到达阵列的信号无重叠这一假设,找出真实基因,得到最终弹头的落点坐标。仿真结果表明:该方法对子母弹多弹头的落点定位是可行的。

The present impact location methods for multi-warhead shrapnerl do not use shock wave to locate the impact points.In this paper,with the help of spaced-apart tetrahedronal arrays and algorithm of TDOA,the trajectory and impacte point＇s coordinate of every supersonic projectile was determinate by gathering the signals of different sensor＇s time deley of the shock waves.The gene code and sensitivity coefficient were put forward to identify the arriving sequence of the shock wave.With the use of information from multi-spaced-apart tetrahedronal array,better genes were searched out by the sensitivity coefficient.According to the assumption that the arriving signal had no overlapping,the real gene was found out,and the final impacte coordinate of the projectile wa figured out.Simulation results showed that the method was feasible for shrapnel multi-warhead impact location.