基于最优控制的突防和打击一体化策略

Integrated strategy of penetration and attack based on optimal control

针对攻击弹同时考虑对防御弹进行突防和对目标进行打击的问题,设计攻击弹和防御弹的视线角速度在某一时刻趋于一个非零值,并将此作为终端约束,考虑攻击弹控制能量最小建立性能指标函数,基于最优控制理论设计突防最优制导律。综合考虑攻击弹对防御弹的探测、预估遭遇时间设计了突防开始和结束时机,构建了离线数据库以在线运用,为参数选择提供依据。基于可用过载约束、落角约束等构建了可达域解析模型。综合考虑攻击弹的突防和打击问题,设计了突防/打击一体化策略。仿真结果表明:基于离线数据库进行参数选择的突防制导律具有良好的性能;可达域解析模型具有良好的精度;突防/打击一体化策略能够使得攻击弹在实现突防的同时完成对目标的有效打击。

In view of the problem that the attack missile simultaneously considers the penetration of the defense missile and the attack on the target, the line of sight angular velocity of the attack missile and the defense missile tends to a non-zero value at a certain time. Taking this as the terminal constraint, considering the minimum control energy of the attack missile, the performance index function is established, and the penetration optimal guidance law is designed based on the optimal control theory. Considering the detection and estimated encounter time of attack bomb to defense bomb, the start and end time of penetration are designed, and an offline database is constructed for online application to provide basis for parameter selection. Based on available overload constraints and falling angle constraints, an analytical model of reachable domain is constructed. Considering the penetration and strike of attack projectile, the penetration/attack integration strategy is designed. Simulation results show that the penetration guidance law based on off-line database has good performance. Reachable domain analytical model has good accuracy. Penetration/attack integration strategy can make the attack bomb to complete the effective attack on the target while achieving penetration.