THEORETICAL INVESTIGATION ON THE LONG DISTANCE PROPAGATION BY TROPOSPHERIC DUCTS / INVESTIGAÇÃO TEÓRICA SOBRE A PROPAGAÇÃO À LONGAS DISTÂNCIAS POR DUTOS TROPOSFÉRICOS

AUTOR(ES)
DATA DE PUBLICAÇÃO

1977

RESUMO

This work considers the propagation problem in long distances by tropospheric ducts. A bi-linear model is used in order to characterize the refraction index variation as a function of height. Inspite of the mathematical sophistication, the theoretical results are vey useful in perfoming a qualitative analysis concerning this propagation scheme. On the other hand, by a quantitative viewpoint, the same is not true; and this is due to the idealization of theorectical formulation, as well as the dificulty of numerical implementation of resultant expressions. In this way, it is definitely necessary to have access to expressions. In this way, it is definitely necessary to have access to experimental data to complement the information supplied by the mathematical model.

ASSUNTO(S)

propagation propagacao

ACESSO AO ARTIGO

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