Enhanced digital predistortion linearization for multi-uiser beamforming in MIMO transceivers for satellite communications
The goal of this master thesis is to demonstrate the effectiveness of digital predistortion (DPD) techniques in making radio frequency (RF) transmitters used in active antenna arrays on board satellites more linear. These arrays include power amplifiers (PAs), which are essential to satellite commun...
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| Tipo de recurso: | tesis de maestría |
| Fecha de publicación: | 2025 |
| País: | España |
| Institución: | Universitat Politècnica de Catalunya (UPC) |
| Repositorio: | UPCommons. Portal del coneixement obert de la UPC |
| Idioma: | inglés |
| OAI Identifier: | oai:upcommons.upc.edu:2117/433659 |
| Acceso en línea: | https://hdl.handle.net/2117/433659 |
| Access Level: | acceso embargado |
| Palabra clave: | Radio - Antennas Satellites MIMO systems Digital predistortion Beamforming Power amplifier Ràdio--Antenes Satèl·lits Sistemes MIMO Àrees temàtiques de la UPC::Aeronàutica i espai |
| Sumario: | The goal of this master thesis is to demonstrate the effectiveness of digital predistortion (DPD) techniques in making radio frequency (RF) transmitters used in active antenna arrays on board satellites more linear. These arrays include power amplifiers (PAs), which are essential to satellite communication systems. The project seeks to linearize these PAs to reduce in-band and out-of-band distortions, which commonly impact signal quality and system performance. Proper linearization is essential for maintaining high-quality communication links, ensuring compliance with spectral regulations, and mitigating reception errors. A specialized simulation tool named DPD4MIMO was created to evaluate various methods and strategies developed during the project. The simulator emulates a real-world, closed-loop, multiple-input, multiple-output (MIMO) communication system that includes transmission and reception processes with beamforming capabilities. It has integrated capabilities for applying and testing different DPD algorithms and implementations tailored for MIMO architectures. The simulation environment enables evaluation of different DPD techniques, signal configurations, and satellite communications (SATCOM) standards in realistic scenarios, providing valuable insights into their potential deployment in satellite systems. |
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