Three-dimensional autonomous reentry guidance for hypersonic glide vehicle

A novel three-dimensional autonomous reentry guidance method satisfying heat flux, overload, dynamic pressure, waypoints and other path and terminal constraints is proposed. The reentry trajectory is divided into the initial and glide phases. In the initial phase, a nominal angle of attack and a constant bank angle are used to generate the trajectory. And the glide phase is designed based on drag acceleration versus energy profile which is obtained by using the interpolation between the upper boundary and the lower boundary of the reentry corridor. The magnitude of the bank angle can be decided through the profile, and the sign of bank angle is determined by lateral planner satisfying the waypoints constraints. Simulation results show that the proposed reentry guidance method can generate trajectories satisfying path and terminal constraints.