Event trigger based nonlinear flight control for a small size unmanned helicopter

Compared with the traditional periodic control methodology, the event trigger based control strategy is an advanced control strategy to make optimal utilization of resources while remaining the control performance at the same time. In this paper, the limited on board computing resource is considered, and the event trigger based nonlinear control strategy is proposed for a small size unmanned helicopter under the effect of the unknown external disturbances. The stability of the control strategy is proved via the Lyapunov based analysis, and the effectiveness of the proposed control strategy is verified via the numerical simulation The simulation results show that the proposed event trigger based control strategy has a good attitude tracking performance under the effect of the unknown external disturbances while reducing the computing resources greatly.