Comparison of X-band satellite link measurements with radar derived rain attenuation in the tropics

Badron, Khairayu and Ismail, Ahmad Fadzil and Asnawi, Ani Liza and Ismail, Madzlan and Salim, Hamid and Mustafa, Hafidzah (2014) Comparison of X-band satellite link measurements with radar derived rain attenuation in the tropics. In: The 3rd International Conference on Computer Engineering & Mathematical Sciences (ICCEMS 2014), 4th-5th December 2014, Aseania Resort & Spa, Langkawi, Malaysia..

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Abstract

The analyses concerning comparison between measured signals of RazakSAT’s Malaysian X-band satellite link and radar derived attenuation using an S-band meteorological radar is presented. Weather radars have been consistently used for investigating propagation phenomena which can affect satellite communication links since the year 1960. A weather radar return which is known as reflectivity can be used to estimate rainfall intensity, attenuation and depolarization caused by hydrometeors. RazakSAT's satellite link received power during clear sky and rainy conditions are compared to extract the rain attenuation values. The S-band radar horizontal polarization reflectivity information was used to calculate the likely rain attenuation along the same RazakSAT satellite propagation paths. The radar reflectivity values are first converted into rainfall rate using the established Z-R relation of Marshall-Palmer. Afterwards the slant path attenuation is determined using the specific rain attenuation formula and the rainfall rate values. It can be observed that the radar derived rain attenuation values are lower than the measured satellite link signals.

Item Type:	Conference or Workshop Item (UNSPECIFIED)
Additional Information:	5457/41678 (ISBN: 978-967-11414-7-2)
Uncontrolled Keywords:	RazakSAT, radar, X-band
Subjects:	T Technology > T Technology (General) > T10.5 Communication of technical information
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering
Depositing User:	Mrs Khairayu badron
Date Deposited:	03 Mar 2015 10:34
Last Modified:	24 May 2018 09:43
URI:	http://irep.iium.edu.my/id/eprint/41678

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