Cálculo de los cambios en la figura de mérito de las estaciones de usuario (G/T) en función de las condiciones del enlace: una revisión

Activities such as the design and optimization of satellite constellations for telecommunications, communication solutions engineering, or GEO/non-GEO satellite inter-system coexistence applications benefit from methods to compute changes in Earth station equivalent noise temperature, a product of the dynamic nature of link geometry and the propagation channel. This paper addresses said requirement. Starting with a review of the user terminal G/T and Earth station noise temperature, methods are developed to compute the change in noise temperature introduced by varying elevation angle and propagation channel conditions. These methods are useful for engineering analyses when the noise contributions from each component of the Earth station receive chain are not known, especially considering the increased impact of clouds and gasses on GEO and non-GEO links operating in frequencies of the Q, E, and W bands. Examples of use and benefits are provided, as well as considerations on the applicability and validity of the methods.