Boosting Trajectory Planning for Hypersonic Vehicle

Boosting trajectory planning is the basis of the gliding trajectory planning for land-launch hypersonic vehicle. Its terminal states are essential to subsequence flight. Besides, mobile launch is an important means to promote the survivability of hypersonic vehicle. To plan the boosting trajectory for hypersonic vehicle and satisfy the strict terminal constraints, firstly we analyzed and established related models that describe both boosting rockets and hypersonic vehicle as a unified form. Then we formulated the trajectory planning problem as a multiple phases and multiple constraints complex optimization problem according to pseudospectral methods. And two experiments are designed to calculate the basic boosting trajectory and mobile launch boosting trajectories. The results satisfy the denoted complex terminal constraints and the requirements of mobile launch, which support the study of subsequence trajectory planning and the development of mobile launch technology.