For the 6-DOF reentry model of hypersonic vehicles in the presence of bounded external disturbances and plant
uncertainties, the control problem of attitude tracking is investigated by using the terminal sliding mode method. In order to
reduce the effect from the external high-frequency noise in the practical application, the attitude model is divided into a two-
loop structure based on the method of the multiple time scale firstly. Then Terminal sliding mode controllers are designed for
each of loops. Stability of the system is presented based on the Lyapunov analysis. Finally, the simulation results show the
effectiveness of the proposed controller to track the guidance instruction for the 6-DOF model of hypersonic reentry vehicles.