RT Journal Article T1 Hierarchical mission planning with a GA-optimizer for unmanned high altitude pseudo-satellites A1 Kiam, Jane Jean A1 Besada Portas, Eva A1 Schulte, Axel AB Unmanned Aerial Vehicles (UAVs) are gaining preference for mapping and monitoring ground activities, partially due to the cost efficiency and availability of lightweight high-resolution imaging sensors. Recent advances in solar-powered High Altitude Pseudo-Satellites (HAPSs) widen the future use of multiple UAVs of this sort for long-endurance remote sensing, from the lower stratosphere of vast ground areas. However, to increase mission success and safety, the effect of the wind on the platform dynamics and of the cloud coverage on the quality of the images must be considered during mission planning. For this reason, this article presents a new planner that, considering the weather conditions, determines the temporal hierarchical decomposition of the tasks of several HAPSs. This planner is supported by a Multiple Objective Evolutionary Algorithm (MOEA) that determines the best Pareto front of feasible high-level plans according to different objectives carefully defined to consider the uncertainties imposed by the time-varying conditions of the environment. Meanwhile, the feasibility of the plans is assured by integrating constraints handling techniques in the MOEA. Leveraging historical weather data and realistic mission settings, we analyze the performance of the planner for different scenarios and conclude that it is capable of determining overall good solutions under different conditions. PB MDPI AG SN 1424-8220 YR 2021 FD 2021-03 LK https://hdl.handle.net/20.500.14352/7988 UL https://hdl.handle.net/20.500.14352/7988 LA eng NO © 2021 by the authors. Licensee MDPIThis research was funded by Project StraVARIA, a Ludwig Bolkow Campus project. Eva Besada Portas' contributions are funded by the the Spanish National Challenge Grant RTI2018098962-B-C21. NO Ministerio de Ciencia e Innovación (MICINN) NO Ludwig Bolköw Campus DS Docta Complutense RD 27 abr 2024