基于反预警的反拦截中段规避突防策略

为了充分挖掘多脉冲机动突防的潜力,提高弹道导弹中段机动突防能力,提出一种基于反预警的反拦截中段规避突防策略。首先,分别以脉冲点火点及点火间隔为搜索节点与步长,视敌方拦截系统为威胁源并转化为航迹规划中的约束条件,将多脉冲弹道的设计问题转化成无人机避障航迹的规划问题。然后,在综合考虑敌方探测系统延迟和拦截系统部署及性能的基础上,选取最优的脉冲点火参数。最后,研究了脉冲增量和探测系统延迟对多脉冲规划的影响。仿真结果表明:所提出的突防策略通过多脉冲机动增加敌方预测误差,使其不能收敛与准确预警,当敌方的预测误差收敛且准确预警时,导弹却处于其拦截范围之外,无法进行拦截;能根据获取的最新战场信息,在线下60s内设计出一条多脉冲突防弹道。此外,还能根据任务的需求,提高(降低)导弹的飞行高度、平均飞行速度,缩短(增加)20%~35%的飞行时间。

Anti-warning-based anti-interception avoiding penetration strategy inmidcourse

An anti-warning-based anti-interception avoiding penetration strategy is proposed for fully exploiting potential of the multi-pulse maneuvering and improving the midcourse penetration ability of ballistic missiles.With the interception system being regarded as threats and transformed into the constraint conditions,the multi-pulse trajectory design is turned into an obstacle avoidance path planning for the unmanned aerial vehicle,wherein the pulse ignition point and interval are regarded as the search nodes and step,respectively.The optimal ignition parameters are selected based on a comprehensive consideration of the detection system delay and the performance and deployment of the interception system.Influence of pulse increment and system delay on multi-pulse trajectory is studied Simulation results show that the proposed strategy can damage the convergence of enemy's prediction algorithm by multi-pulse maneuvering,and the accuracy of hostile warning results is thus reduced.When the enemy's prediction error sufficiently converges and the hostile warning is accurate enough,the missile is already being out of the range of interception.According to the latest information in battlefield,an optimal multi-pulse trajectory can be designed offline in 60 s,which can increase (decrease) the flight altitude and the average flight speed,and shorten (prolong) the flight time by 20%-35%.