Author(s): Mandeep Singh Jit Singh | Syed Idris Syed Hassan | Mohd Fadzil Ain
Journal: American Journal of Applied Sciences
ISSN 1546-9239
Volume: 4;
Issue: 1;
Start page: 05;
Date: 2007;
VIEW PDF
DOWNLOAD PDF 
Original page
Keywords: Satellite communication | rainfall rate | rainfall attenuation
ABSTRACT
Attenuation due to rain is a primary cause of communication impairment on satellite-earthpaths, especially above 10GHz. Rainfall is a serious source of attenuation at such a frequency. Thispaper presents the characteristics of rain distribution in USM based on measured one minute rain rate.For attenuation of rain, predictions models like ITU and VIHT (Variable Isotherm Height Technique)model were used to estimate the effect of rain on Ku band signals. Data of rain attenuation and rainfallrates collected at USM are estimated and compared with the predicted models. The ITU modelfollowed closely to the measured rainfall rate and attenuation data whereas the VIHT modelsoverestimated the measured rainfall rate and attenuation data.
Journal: American Journal of Applied Sciences
ISSN 1546-9239
Volume: 4;
Issue: 1;
Start page: 05;
Date: 2007;
VIEW PDF
DOWNLOAD PDF Original pageKeywords: Satellite communication | rainfall rate | rainfall attenuation
ABSTRACT
Attenuation due to rain is a primary cause of communication impairment on satellite-earthpaths, especially above 10GHz. Rainfall is a serious source of attenuation at such a frequency. Thispaper presents the characteristics of rain distribution in USM based on measured one minute rain rate.For attenuation of rain, predictions models like ITU and VIHT (Variable Isotherm Height Technique)model were used to estimate the effect of rain on Ku band signals. Data of rain attenuation and rainfallrates collected at USM are estimated and compared with the predicted models. The ITU modelfollowed closely to the measured rainfall rate and attenuation data whereas the VIHT modelsoverestimated the measured rainfall rate and attenuation data.
