Otimização da Cobertura dos Serviços de Comunicação Aeronáutica Sediados nos Açores

Beatriz Isabel Rebelo Ruivo Ferreira

Key information

Authors:

Beatriz Isabel Rebelo Ruivo Ferreira (Beatriz Isabel Rebelo Ruivo Ferreira)

Supervisors:

Luís Manuel De Jesus Sousa Correia (Luís Manuel De Jesus Sousa Correia)

Published in

November 15, 2021

Abstract

This dissertation aims to study the theoretical concepts necessary to solve the coverage problem verified in the military aeronautical communications system that was implemented in the Azores Archipelago. The concepts studied are mostly for the solution of the coverage problem. The dissertation presents the characteristics of the communication system that was once installed in the Azores, theoretical concepts on propagation and coverage models are studied and a state of the art on the subject is presented. Afterwards, the model is developed, making use of the models on free space propagation, the trans-horizon communication and the Knife-Edge and Deygout. Subsequently, one analyses the results obtained. At the end, the conclusions of the study are presented. It is concluded that it is possible to obtain a coverage range of 200 km at a flight altitude of 600 m when using antennas with gains greater than 5.2 dBi and it was also concluded that the system could improve its performance if it would be possible to install a new earth station on top of Pico Mountain.