基于事件触发机制的多飞行器有限时间协同制导方法

Aiming at salvo-attack problem of a system of multiple flight vehicles, two event-triggered mechanism-based finite-time consensus cooperative guidance methods are proposed. These methods utilize an event-triggered mechanism to decrease the frequency of control command generation and communication. On this basis, the communication load is lightened, and the effectiveness and reliability are promoted. Firstly, a two-phase guidance scheme is presented. More specifically, the intermediate variables are forced to achieve consensus within a small region around zero during the first phase, and the 3D proportional navigation guidance law is introduced to achieve the accurate guidance during the second phase. Next, the engagement dynamics model of each member of the multi-vehicle system is built and transformed to a second-order multiple-agent system. A terminal sliding manifold is presented to reduce the order. Finally, based on the event-triggered mechanism, centralized and distributed consensus guidance method are proposed, respectively. Theoretical analysis and simulation results demonstrate the properties of effectiveness, finite-time convergence and Zeno-phenomenon avoidance.