Comunicaciones ópticas entre satélites LEO y GEO / Optical communications between LEO and GEO satellite

Palacio Romeu, Armando (2022) Comunicaciones ópticas entre satélites LEO y GEO / Optical communications between LEO and GEO satellite. Integration Project in Telecommunications Engineering, Universidad Nacional de Cuyo, Instituto Balseiro.

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Abstract in Spanish

Las comunicaciones ópticas prometen ser un nuevo paradigma en aplicaciones satelitales debido a sus claras ventajas respecto a las comunicaciones convencionales de radiofrecuencia. En esta tesis se estudiará la implementación de un enlace óptico de comunicaciones entre satélites de orbita baja (LEO) y geoestacionaria (GEO), enfocándose en el uso de modulaciones de intensidad como OOK y M-PPM. Para la decodificación de M-PPM se estudian los casos de decisión dura y blanda. Se desarrolla un simulador del enlace en el lenguaje de programación Python y se obtienen las curvas de desempeño del sistema en función de parámetros esenciales como ancho de banda del receptor, tasa de transmisión de bits y potencia media recibida. Estas curvas son comparadas con modelos teóricos desarrollados y se realizan observaciones respecto de las ventajas y desventajas de ambos formatos de modulación. Por último, se muestran los resultados obtenidos a partir de la implementación de un demostrador tecnológico del enlace óptico de comunicaciones en el laboratorio.

Abstract in English

Optical communications promise to be a new paradigm in satellite applications due to their clear advantages over conventional radio-frequency communications. This thesis will study the implementation of an optical communications link between low Earth orbit (LEO) and geostationary orbit (GEO) satellites, focusing on the use of intensity modulations such as OOK and M-PPM. For M-PPM decoding, hard and soft decision cases are studied. A communications link simulator is developed in the Python programming language and system performance curves are obtained as a function of essential parameters such as receiver bandwidth, bit transmission rate and average received power. These curves are compared with theoretical models and observations are made regarding the advantages and disadvantages of both modulation formats. Finally, the results obtained from the implementation of a technological demonstrator of the optical communications link in the laboratory are shown.

Item Type:Thesis (Integration Project in Telecommunications Engineering)
Keywords:Satellites; Satélites; [Optical communications; Comunicaciones ópticas; Satellite communications; Comunicaciones satelitales; OOK modulation; Modulación OOK; PPM modulation; Modulación PPM; Digital receiver; Receptor digital]
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Subjects:Ingeniería en telecomunicaciones > Telecomunicaciones
Divisions:Gcia. de área de Investigación y aplicaciones no nucleares > Laboratorio de investigación aplicada en Telecomunicaciones
ID Code:1143
Deposited By:Tamara Cárcamo
Deposited On:09 Aug 2023 14:56
Last Modified:09 Aug 2023 14:56

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