2026-04-17T06:55:30Zhttps://recercat.cat/oai/request

oai:recercat.cat:2117/4465942026-02-07T16:41:35Zcom_2072_1033col_2072_452951

Attitude determination and control system for small satellites Jonak, Kajetan Andrzej Universitat Politècnica de Catalunya. Física Gutiérrez Cabello, Jordi Gil-Pons Pilar Àrees temàtiques de la UPC::Aeronàutica i espai Astronomical photometry Microspacecraft Space vehicles -- Attitude control systems Microsatellites Attitude Attitude Determination Control Requirements Fotometria astronòmica Satèl·lits Petits Vehicles espacials--Sistemes de control d'actitud The objective of this thesis is to propose and evaluate attitude determination methods and attitude control algorithms that take advantage of all onboard sensors and actuators. To achieve this goal, a MATLAB Simulink-based simulation environment was developed. Its primary purpose is to provide a platform for testing and tuning control algorithms. The simulation enables the implementation and evaluation of the attitude determination and control algorithms. The work focuses on preparing the simulation environment, proposing an attitude determination algorithm, and comparing several attitude control strategies. PhotSat is a 16U CubeSat devoted to astronomical photometry in the design phase at the Institute of Space Studies of Catalonia and the Universitat Politecnica de Catalunya. Due to `its demanding pointing requirements the ADCS is one of the critical subsystems. In this Master Thesis, we explore different attitude control alternatives for fine attitude corrections and benchmark them. The possible actuators to be studied include but are not limited to, variable-reflectivity surfaces to leverage solar radiation pressure, moving masses and aerodynamic surfaces. In all cases, the control mechanisms studied will provide small corrections to the main actuators (reaction wheels). 2025-07-23 Master thesis https://hdl.handle.net/2117/446594 PRISMA-198194 eng http://creativecommons.org/licenses/by-nc-sa/3.0/es/ Open Access application/pdf Universitat Politècnica de Catalunya