Meteorological features leading to multipath propagation, observed in the PACEM 1 experiment

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.