Modelo de propagação de sinais de rádio na selva equatorial: Uma proposta para otimizar os sistemas de telecomunicações em regiões hostis II
Autor:
Paredes-Calderón, Manolo
; Rodas, Federico
; Giménez de Ory, Elena
; Diaz Angulo, Luis Manuel
Fecha:
2019Palabra clave:
Revista / editorial:
RISTI. Revista Iberica de Sistemas e Tecnologias de InformacaoTipo de Ítem:
Articulo Revista IndexadaResumen:
O artigo expõe o resultado da pesquisa feita na amazonía equatoriana,
mesma tem o objetivo de achar um modelo de propagação de sinais de rádio nesse
ambiente hostil. O trabalho toma maior interesse porque aquela área selvática
não tem sido caracterizada ainda e apresenta não conformidades nos serviços de
telecomunicações. A caracterização procura um modelo matemático que através de
um ajuste regressivo possa estimar com maior precisão a potência do sinal recebido.
As medições na selva foram feitas a partir de sinais geradas por equipes de rádio
com padrões militares, os quais garantem a qualidade do sinal. Simultaneamente,
utilizando analisadores do espectro eletromagnético várias equipes de pessoas
adentradas na selva medem a potência do sinal recebido. As probas foram feitas
numa região como vegetação densa e no horário de verão, utilizou-se uma estação
meteorológica para conferir dados. Os resultados obtidos mostram que nenhum
modelo atual atinge com precisão a forma de computar as perdas de potência nesse
ambiente.
Descripción:
The article exposes the results of the research carried out in the Ecuadorian Amazon, which has the objective of finding a model of propagation of radio signals in this hostile environment. The work takes more interest because that jungle area has not been characterized yet and presents nonconformities in the telecommunications services. The characterization looks for a mathematical model that through a regressive adjustment can estimate more accurately the power of the received signal. The measurements in the jungle were made from signals generated by radio equipment with military standards, which guarantee the quality of the signal. Simultaneously, using electromagnetic spectrum analyzers, several teams of people in the jungle measure the power of the received signal. The probes were made in a region like dense vegetation and during the summer time, a meteorological station was used to check data. The results show that no current model accurately achieves the computation of power losses in this environment.
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