粒子群算法在机动指令跟踪控制器中的应用

基于Backstepping的设计思想设计了机动轨迹跟踪控制律,以实现战机某些预定的战术机动动作。首先,将飞行动力学模型和运动学模型分解为三轴方向的相对简单的子系统,然后采用反步法分别设计控制律,使得整个系统渐近稳定。由于控制器中含有可调参数,每次跟踪不同的参考轨迹都需要重新设定控制器参数值才能达到良好的跟踪效果,因此利用粒子群算法对控制器参数进行了优化整定,从而保证控制器的自适应性。最后,以机动动作库中战机的某些机动动作为参考轨迹实现全局渐进跟踪,取得了良好的跟踪效果,验证了粒子群算法在控制器参数寻优中的有效性和可行性。

Application of PSO in tracking controller of maneuvers

Trajectory tracking control law is designed based on Backstepping to achieve some scheduled tactical maneuvers.Firstly, the whole system is decomposed into three axial directions of relatively simple subsystems.Then the control law is designed by using Backstepping for these three subsystems respectively, which makes the whole system stable gradually.However, the controller contains adjustable parameters, which should be reset when tracking different reference trajectories.Therefore, the controller parameters are optimized by the PSO to ensure the adaptability of the controller.Taking some maneuvers in the maneuver library as a reference trajectory for global step by step tracking and good tracking results are achieved, thus proving the effectiveness and feasibility of PSO in optimization of the controller parameters.