The Power Delay Profile of the Mobile Channel for Above the Sea Propagation

This study focuses on the power delay profile (PDP) of sea propagation environments. Sounding measurements were conducted for above the sea mobile propagation channels aiming at the extraction and characterization of the channel\´s PDP. As concluded, PDP presents a discontinouous, and "spiky" shape. Line-of-sight propagation generally resulted in very small delay parameters values. On the contrary absence of line-of-sight indicates an extremely frequency selective channel. Finally the variation of the delay parameters vs distance, as well as the relationship between delay spread and coherence bandwidth, were also studied.