“…We express all the constraints and the objective function from (8) in terms of the UAV trajectory and its derivatives. Taking the trajectory as a B-spline curve (2) with the degree and the knot vector of the basis functions a priori fixed and using over-approximations based on P4), we reformulate the optimization problem only in terms of the control points. Thus, the initial continuoustime (infinite dimensional) optimization problem ( 8) is converted to a finite-dimensional, sub-optimal optimization problem.…”