一种基于最短接近时间的目标分配方法

提出了一种在无线网络的支持下,使得机群平均接近时间最短准则的目标分配方法。对于给定的敌我相对运动态势和机载武器配置,每一架飞机进入攻击位置的时间是可以通过适当的模型和算法计算出来。本文假定飞机在进入发射位置的过程中,一直在试图消除瞄准误差,因而可以采用比例导引律来逼近其航路,由此可以得到飞机应飞时间的积分表达式。以此表达式为基础,以机群整体占位时间最小,本文得到了一个目标分配策略。

A Target Assignation Based on the Shortest Average Time to Flight

This paper presents a target assignation method based on the criterion of the shortest average time to approach in a cooperative engagement scenario, where two teams of aircraft are engaged and the aircraft within a team share information with each other through a certain wireless network. For given relative geometry and airborne weapon configurations, the time to flight of each vehicle against each target can be predicted through properly modeling the engagement process. Under the assumption that the aircraft, when be assigned a target, always tries to vanish the aiming error during its course to the lunch envelop, and hence its trajectories can be approximated via the ones driven by proportional guidance lows. Given that an analytical expression for trajectories is available, the time to approach is obtainable by numerical integration. Based upon this expression, a target assignation strategy is obtained that minimizes the average time to approach of the group of attacking aircraft.