Title :
Ku-band signal depolarization over earth-space path in relation to scattering of raindrops at a tropical location
Author :
Maitra, Animesh ; Adhikari, Arpita
Author_Institution :
S.K. Mitra Centre for Res. in Space Environ., Univ. of Calcutta, Kolkata, India
Abstract :
The depolarization of a satellite signal due to scattering by rain drops has been studied at a tropical location. The depolarization phenomenon is observed in terms of an enhancement of cross-polar component of a horizontally polarized Ku-band signal. The differential phase shifts, dominantly responsible for causing depolarization at Ku-band due to scattering by spheroidal raindrops, are computed by employing the point matching technique and using experimentally obtained rain drop size distribution (DSD) data. The differential phase shift is significant for large drops (>; 3mm). Consequently, DSD plays an important role in determining the depolarization of the satellite signal.
Keywords :
electromagnetic wave polarisation; electromagnetic wave scattering; microwave propagation; rain; satellite communication; Ku-band signal depolarization; cross-polar component enhancement; differential phase shift; earth-space path; horizontally polarized Ku-band signal; point matching technique; rain drop size distribution data; raindrop scattering; satellite signal depolarization; spheroidal raindrops; Antenna measurements; Atmospheric measurements; Attenuation; Rain; Satellite broadcasting; Satellites; Scattering;
Conference_Titel :
General Assembly and Scientific Symposium, 2011 XXXth URSI
Conference_Location :
Istanbul
Print_ISBN :
978-1-4244-5117-3
DOI :
10.1109/URSIGASS.2011.6050803
