Trajectory of Terrain-Following/Terrain-Avoidance flights for real-time implementation

Terrain-Following/Terrain-Avoidance (TA/TF) system development has three steps. Among three steps, optimal trajectory planning step is the first step on TA/TF system. This paper introduces an existing research as many referenced at the first step which defined cost function about flight time and terrain masking functions and derive the trajectory formulation through complicated formula. As solved the trajectory problem via new approach, it anticipates that get a similar flight trajectory and performance more easily with an existing research.