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越肩发射(OTS)可以增大导弹的截获区。战斗机攻击尾后目标时,为了达到导弹的最佳发射点,提出了一种基于勒让德伪谱法(LPM)攻击轨迹规划方法,实时规划战斗机的攻击轨迹,及时调整飞机状态。首先通过数据链获取目标的运动参数;分析了采用越肩发射方式的攻击轨迹规划问题,建立了攻击轨迹规划最优控制模型;引入勒让德伪谱法将控制模型离散为非线性模型;最后利用snopt工具箱进行了仿真验证。仿真结果表明,该方法可以为战斗机规划一条既能准确发射导弹又满足机动性要求的攻击轨迹。
Shoulder Shooting (OTS) can increase the missiles capture area. In order to reach the best launching point of the missile, aiming at the attacking tail of the fighter, an attack trajectory planning method based on Legendre spectrum (LPM) was proposed to plan the fighter attack trajectory in real time and to adjust the aircraft state in time. First, the motion parameters of the target are obtained through the data link. The attack trajectory planning problem with the over-the-shoulder launch mode is analyzed. The optimal control model of attack trajectory planning is established. The Legendre method is introduced to discretize the control model into a nonlinear model. Finally Simulation using snopt toolbox. Simulation results show that this method can be used to plan a fighter attack trajectory that can both accurately launch a missile and meet the requirements of mobility.