Title :
Recent progress in duct propagation predictions
Author :
Dougherty, H.T. ; Hart, B.A.
Author_Institution :
US Dept. of Commerce, Boulder, CO USA
fDate :
7/1/1979 12:00:00 AM
Abstract :
There has been a revived interest in the enhanced radio fields that are encountered in the presence of trapping or dueting atmospheric refractivity gradients either aloft or at and near the surface. Recent progress in the theoretical formulation of ducted fields is summarized, some resulting expressions for interference problems are presented, and those areas still in need of additional development are identified.
Keywords :
Radio propagation meteorological factors; VHF radio propagation; Atmosphere; Atmospheric waves; Degradation; Ducts; Fading; Frequency; Interchannel interference; Refractive index; Regulators; Surface waves;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.1979.1142130
