2026-04-13T02:38:56Zhttps://recercat.cat/oai/request

oai:recercat.cat:2117/3940192025-07-23T07:10:04Zcom_2072_1033col_2072_452951

00925njm 22002777a 4500 dc Revilla Bouso, Ramón author 2023-07-12 Over the last decade, CubeSats, a standardised satellite design, have opened up doors of space exploration to a wide range of universities, startups and research groups by offering low-cost, versatile operations. This thesis is within the framework of the DISEN research group and its Amazon Mission, which intends to establish a communication link between a remote and inaccessible place such as the Amazon, with the DISEN ground station. The thesis aims to develop an attitude control system and flight schedule for the Amazon Mission CubeSat using the NASA’s open-source 42 Simulator. In addition, Matlab is used to plot and analyse the simulation outputs. The attitude control system is designed with two possible states: a ground station pointing state, to be used during a flyby over a ground station, and an Earth pointing state, to be used during the rest of the orbit. Based on this, the flight schedule calls each state at the required time, depending on the CubeSat relative position with the Earth. Furthermore, a preliminary analysis on the battery management and data flow of the CubeSat throughout its orbit is implemented. To analyse the simulation results, data such as the pointing accuracy, the angular velocity of the reaction wheels and the battery consumption is particularly focused and detailed due to being critical factors for the performance of the CubeSat. Regarding the final design, it provides the CubeSat with a pointing accuracy below 4 degrees at all times and with a 20% battery charge surplus during each orbit. It also ensures that the operation of the reaction wheels is within limits. With the results obtained, it can be stated that the CubeSat designed has a reliable operation and fulfills the Amazon Mission goals. Nevertheless, this thesis has built the mission foundations within the 42 Simulator, and it is future work to refine many of the processes and models designed to achieve even more realistic simulations. Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica::Satèl·lits i ràdioenllaços Artificial satellites Flight control Flight simulators CubeSat Attitude Determination and Control System ADCS 42 Simulator Earth pointing Ground Station pointing Battery Management System CubeSat communication Satèl·lits artificials Sistemes de control (Vol) Simuladors de vol Design of an attitude control system and flight schedule for CubeSats with NASA 42 Simulator