攻击运动目标的参数自适应多弹协同制导方法

Adaptive parameter cooperative guidance law for multiple missiles attacking a moving target

根据多导弹协同攻击运动目标的要求和特点,设计了一种参数自适应多弹协同制导方法。选取一枚导弹作为领弹,带领其他从弹进行协同作战,以领弹的状态为基准,从弹对其进行跟踪,使各弹状态达到一致以实现同时到达的目的。针对这一跟踪控制系统,利用有限时间控制技术和动态逆控制原理设计了非线性状态跟踪控制器;给出了一种剩余飞行时间估算方法,并以此来设计参数自适应调节器,使得跟踪器的控制参数能够根据领弹的剩余飞行时间在一定范围内进行在线调整。参数自适应调节器配合状态跟踪控制器工作,使控制器的状态变量能够在有限时间内收敛。将采用指数收敛控制得到的协同制导方法和该文提出的方法进行仿真对比,结果表明文中提出的协同制导方法在收敛速度和攻击效果方面均具有明显优势。

An adaptive parameter cooperative guidance law was proposed for multiple missiles attacking a moving target. The leader-follower strategy was adopted for cooperative engagement. A missile was selected as the leader, the others were followers. The state variables of the leader were selected as the reference state, and followers tracked the reference state, which makes the state of followers converge to the leader＇s to ensure that all the missiles arrive to the target simultaneously. For this tracking control system, a nonlinear state tracking controller was designed using finite time control technology and dynamic inversion theory. And a method to estimate the time-to-go was also presented. Time-to-go of the leader was used to design the parameter adaptive regulator, making the parameters of controller can be adjusted on-fine in an effective range. The parameter adaptive regulator works with the state tracking controller together, making state variable of the controller converge infinite time. Numerical simulation was carried out using the cooperative guidance law based on exponential convergence control and finite time control, respectively. Simulations results show that the cooperative guidance law based on finite time control technology has obvious advantage in convergence speed and attack effect.