Title :
Simplified analysis of line-of-sight propagation through rain at 5-90 GHz
Author :
de Wolf, David A. ; Russchenberg, H.W.J. ; Ligthart, L.P.
Author_Institution :
Bradley Dept. of Electr. Eng., Virginia Polytech. Inst. & State Univ., Blacksburg, VA, USA
fDate :
8/1/1992 12:00:00 AM
Abstract :
Attenuation and phase shift of narrowband signals at radar and higher frequencies due to atmospheric layers of hydrometers are usually analyzed by solving the scattering amplitude of one particle numerically and then applying the necessary many-particle statistics. A case is made for an important simplification: use of an analytical solution for the one-particle scattering amplitude that is basically an extension of the well-known low-frequency Rayleigh scattering amplitude with several empirical factors. This opens the road to predictions of 5-90-GHz signal deterioration from lower-frequency radar reflections yielding particle, statistics. Specifically, results for copolar and cross-polar discrimination of signal attenuation and for differential phase shifts are presented and compared, where possible, to known results
Keywords :
electromagnetic wave scattering; radiowave propagation; rain; tropospheric electromagnetic wave propagation; 5 to 90 GHz; EHF; Rayleigh scattering amplitude; SHF; analytical solution; atmospheric layers; copolar discrimination; cross-polar discrimination; differential phase shifts; hydrometers; line-of-sight propagation; many-particle statistics; narrowband signals; one-particle scattering amplitude; radar reflections; radiowave propagation; rain; signal attenuation; Attenuation; Frequency; Line-of-sight propagation; Narrowband; Particle scattering; Radar scattering; Rain; Rayleigh scattering; Signal analysis; Statistical analysis;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
