Summary
International Symposium on Antennas and Propagation
2012
Session Number:4D1
Session:
Number:4D1-5
Effects of Rain on Scintillation Measured on Ku- Band Satellite Signals in Tropical Region
Mandeep Singh Jit Singh,
pp.-
Publication Date:2012/10/29
Online ISSN:2188-5079
Summary:
The research in the tropospheric scintillation at higher frequencies (Ku-band, Ka-band) is needed to cater the problems arising in the radio-wave transmission. Another problem is the signal level fluctuations caused by the tropospheric scintillation together with signal-level attenuation caused by the rain which causes problems in the satellite communications systems. Therefore, analysis of the tropospheric scintillation from earth to space at Ku-band has been carried out in order to obtain the required cut off frequency for the scintillation. The analyses of power spectral densities were attained in order to get the correct cut off frequency. This cut off frequency is used to separate the scintillation from rain attenuation with the assistance of Butterworth high pass filter of order 10. This paper presents a comparison of scintillation amplitude and scintillation intensity between rain and non-rain event using data measured in Kuala Lumpur in December 2011. The findings denote that the signal level of scintillation during rain is higher than during non-rain event. The findings also demonstrate that as the elevation angle is higher, the path length will be smaller. Therefore, the scintillation amplitude will be small.