Abstract
Because multipath propagation constitutes a major source of impairments for line of sight radio links, the investigation of meteorological situations associated with it is of some importance. This paper describes the meteorological measurements carried out during thePacem Iexperiment and discusses their accuracy. The usefulness of acoustic soundings and the use of a ray-tracing program are specially detailed points. The great variety of the features encountered calls for a long time derivation of statistical properties, and for further experimental data taking into account the non horizontal homogeneity of the atmospheric boundary layer along the radio link.
Analyse
L’examen des situations météorologiques associées à la propagation par trajets multiples, lesquels constituent une des principales causes de dégradation de la qualité des liaisons hertziennes en visibilité, s’avère être un important thème de recherche. Cet article décrit les mesures météorologiques effectuées durant l’expériencepacem Iet discute leur justesse. L’utilité des sondages acoustiques et l’emploi d’un programme de tracé de rayons sont des points spécialement étudiés. La grande variété des situations rencontrées nécessite l’établissement de propriétés statistiques, sur des périodes assez longues; elle requiert également de nouvelles données expérimentales rendant compte des inhomogénéités horizontales de la couche limite atmosphérique le long de la liaison.
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Claverie, J., Klapisz, C. Meteorological features leading to multipath propagation, observed in the PACEM 1 experiment. Ann. Telecommun. 40, 660–671 (1985). https://doi.org/10.1007/BF02997461
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DOI: https://doi.org/10.1007/BF02997461
Key words
- Multipath propagation
- Radio wave
- Meteorology
- Experimentation
- Refractive index
- Atmospheric refraction
- Tropospheric propagation
- Acoustic sounding
- Ray tracing
- Vertical profile