Fade and non-fade duration statistics for earth-space satellite link in Ku-band

2000 ◽  
Vol 36 (10) ◽  
pp. 894 ◽  
Author(s):  
K.I. Timothy ◽  
J.T. Ong ◽  
E.B.L. Choo
Keyword(s):  
Satellite Link ◽  
Earth Space ◽  
Space Satellite ◽  
Ku Band

Rainfall measurements at Ku-band satellite link in Penang, Malaysia

2008 ◽  
Vol 2 (2) ◽  
pp. 147-151 ◽  
Author(s):  
J.S. Mandeep ◽  
S.I.S. Hassan ◽  
K. Tanaka
Keyword(s):  
Satellite Link ◽  
Ku Band

scholarly journals Fade slope analysis for Ku‐band earth‐space communication links in Malaysia

2019 ◽  
Vol 13 (13) ◽  
pp. 2330-2335 ◽  
Author(s):  
Siat Ling Jong ◽  
Carlo Riva ◽  
Jafri Din ◽  
Michele D'Amico ◽  
Hong Yin Lam
Keyword(s):  
Space Communication ◽  
Earth Space ◽  
Slope Analysis ◽  
Communication Links ◽  
Ku Band

Effect of rain induced scintillation on Ku-band satellite link in tropical region

2014 ◽  
Author(s):  
Hassan Dao ◽  
Islam Md. Rafiqul ◽  
Megat Farez Azril Zuhairi ◽  
Megat Norulazmi Megat Mohamed Noor ◽  
Sayed Aziz Sayed Hussin
Keyword(s):  
Tropical Region ◽  
Satellite Link ◽  
Ku Band

scholarly journals Rainfall measurement from opportunistic use of earth-space link in Ku Band

2013 ◽  
Vol 6 (1) ◽  
pp. 2113-2150 ◽  
Author(s):  
L. Barthès ◽  
C. Mallet
Keyword(s):  
Rain Rate ◽  
Low Cost ◽  
Earth Satellite ◽  
Rain Attenuation ◽  
Earth Space ◽  
Water Vapour Concentration ◽  
Vapour Concentration ◽  
Cloud Water Content ◽  
Power Measurements ◽  
Ku Band

Abstract. The present study deals with the development of a low cost microwave device devoted to measure average rain rate observed along earth – satellite links. The principle is to use rain atmospheric attenuation along Earth – space links in Ku-band to deduce the path averaged rain rate. These links are characterized by a path length of a few km through the troposphere. Ground based power measurements are carried out by receiving TV channels from different geostationary satellites in Ku-band. The major difficulty in this study is to retrieve rain characteristics among many fluctuations of the received signal which are due to atmospheric scintillations, changes in the composition of the atmosphere (water vapour concentration, cloud water content) or satellite features (variation of the emitted power, satellite motions). In order to perform a feasibility study of such a device, a measurement campaign has been performed for five months near Paris. This paper proposes an algorithm based on an artificial neural network to identify drought and rainy periods and to suppress the variability of the received signal due to no-rain effects. Taking into account the height of the rain layer, rain attenuation is then inverted to obtain path averaged rain rate. Obtained rainfall rates are compared with co-located rain gauges and radar measurements on the whole experiment period, then the most significant rainy events are analyzed.

scholarly journals Effect of clouds on Ku-band satellite link in tropical island countries – preliminary report

2013 ◽  
Vol 31 (1) ◽  
pp. 61
Author(s):  
V. Ramachandran ◽  
Ashneel Prasad
Keyword(s):  
Preliminary Analysis ◽  
Preliminary Report ◽  
Wave Attenuation ◽  
Cloud Water ◽  
Tropical Island ◽  
Satellite Link ◽  
Cloud Coverage ◽  
Cloud Water Content ◽  
Logarithmic Dependence ◽  
Ku Band

Dependence of radio wave attenuation by cloud water content has been investigated by analyzing simultaneous records of the strength of Ku-band satellite downlink and 'insolation'. Preliminary analysis suggests that with increasing cloud coverage in the satellite downlink path, the cloud induced attenuation also increases. The cloud attenuation showed a logarithmic dependence on reduction in insolation. In Fiji, a tropical island country, the maximum attenuation of Ku-band signals by cloud was ~ 11%.

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