Summary
International Symposium on Antennas and Propagation
2012
Session Number:4D2
Session:
Number:4D2-1
Assessment of Seasonal Asia Monsoon Rain Impact on the Earth-space Propagation in Equatorial Kuala Lumpur
Hong Yin Lam,
pp.-
Publication Date:2012/10/29
Online ISSN:2188-5079
Summary:
Future satellite communication systems are moving towards high operational frequencies, typically in the Ka band to deliver wider bandwidths and higher data rates. In this work, we present an extensive analysis of long-term rain attenuation statistics, focusing on seasonal variations for a Ka band satellite communication system whose ground station is located in Kuala Lumpur, Malaysia. Results originate from local drop size distribution (DSD) measurements collected by a disdrometer in the 1992-1994 periods and the usage of Synthetic Storm Technique (SST). Specific attenuations are estimated from DSD, both on event basis and on overall basis by means of classical point matching technique. The assessments clearly indicate the representativeness of the power law relationship between specific attenuation and rain rate. We extended the work to obtain seasonal and monthly slant-path rain attenuation statistics using the available DSD data and the SST. Results show that during the South-West monsoon season, the system would require a lower rain attenuation fade margin with respect to the North-East monsoon and Inter-monsoon season (for the same link availability target). Moreover, such results represent useful information for planning appropriate PIMTs for high availability systems.