Satellite GLONASS orbit integration and analysis

Satellite navigation systems rely on precise knowledge of satellite positions. Galileo,GPS and BeiDou satellite coordinates are computed from pseudo-Keplerian elements. In contrast, GLONASS satellite are computed by interpreting the orbit from initial conditions of position and velocity using a four...

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Detalles Bibliográficos
Autor: González Salazar, Guillermo José
Tipo de recurso: tesis de maestría
Fecha de publicación:2023
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:2117/390510
Acceso en línea:https://hdl.handle.net/2117/390510
Access Level:acceso abierto
Palabra clave:Artificial satellites in navigation.
GNSS
Satellite
Navigation
Orbit
Sistema de posicionament global
Àrees temàtiques de la UPC::Aeronàutica i espai::Astronàutica::Navegació espacial
Descripción
Sumario:Satellite navigation systems rely on precise knowledge of satellite positions. Galileo,GPS and BeiDou satellite coordinates are computed from pseudo-Keplerian elements. In contrast, GLONASS satellite are computed by interpreting the orbit from initial conditions of position and velocity using a fourth-order Runge-Kutta method. This master thesis aims to develop an algorithm that can compute GLONASS coordinates and clocks at any epoch using the broadcast navigation message. The algorithm analyzes the computed coordinates and key aspects of the satellite orbit derivation, such as external forces affecting the orbits. Through the analysis of the obtained data, coordinate and clock differences can be determined for both short and long terms, the data can be compared with other navigation products and the nature of these external forces can be identified.