Effect of scattering in measurements of rain attenuation by passive radiometry
- 31 March 1977
- journal article
- Published by Institution of Engineering and Technology (IET) in Electronics Letters
- Vol. 13 (7) , 177-178
- https://doi.org/10.1049/el:19770130
Abstract
A sun-tracking beam-switching radiometer has been used at a frequency of 37 GHz to measure attenuation caused by rain on earth-space paths. The attenuation derived indirectly from data on the thermal noise emitted by the rain underestimates the true attenuation by 10 to 15% and 30 to 35% for vertical and horizontal polarisations, respectively, for elevation angles in the range 10°–35°.Keywords
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