RT Journal Article T1 UAVs mission planning with imposition of flight level through fast marching square A1 González Pacheco, Víctor A1 Monje Micharet, Concepción Alicia A1 Moreno Lorente, Luis Enrique A1 Balaguer Bernaldo de Quirós, Carlos AB Many proposed activities to be carried out by unmanned aerial vehicles (UAVs) in urban environments require a control over the altitude for different purposes. Energy saving and minimization of costs are some of these objectives. This work presents a method to impose a flight level in a mission planning carried out by a UAV in a 3D urban environment. The planning avoids all obstacles encountered in the environment and maintains a fixed flight level in the majority of the trajectory. The method used as planner is the Fast Marching Square (FM2) method, which includes two adjustment parameters. Depending on the values of these parameters, it is possible to introduce into the planning an altitude constraint, as well as to modify the smoothness of the trajectory and the safety margins from the obstacles. Several simulated experiments have been carried out in different situations obtaining very good results. PB Taylor & Francis SN 0196-9722 YR 2017 FD 2017-01-25 LK https://hdl.handle.net/10016/39046 UL https://hdl.handle.net/10016/39046 LA eng NO The research leading to these results has received funding from the RoboCity2030-III-CM project (Robótica aplicada a la mejora de la calidad de vida de los ciudadanos, fase III; S2013/MIT-2748), funded by Programas de Actividades I+D en la Comunidad de Madrid and cofunded by Structural Funds of the EU. DS e-Archivo RD 17 jul. 2024