scholarly journals Preliminary findings of the effect of some atmospheric parameters on Ku-band satellite link.

2003 ◽  
Vol 21 (1) ◽  
pp. 59
Author(s):  
Visagaperuman Ramachandran ◽  
Vickal Kumar
Keyword(s):  
Rain Rate ◽  
Atmospheric Parameters ◽  
Attenuation Measurement ◽  
Satellite Link ◽  
Rate Distribution ◽  
Similar Variation ◽  
Cumulative Rainfall ◽  
Ku Band

A four-month study of the attenuation measurement on satellite TV transmission down link is reported. The time percentage distributions of the attenuation show a fairly large month-to month variation. However, such variations seem to be closely related to the variation of the rain-rate distribution. Comparison of exceedance and the cumulative rainfall during these four months with those of the ten -year data indicates a similar variation this year. Measurements on a ?cloudy? day without any rain indicate that the attenuation by cloud is small.

scholarly journals Empirical Prediction Models of 1-min Rain Rate Distribution for Various Integration Time

2008 ◽  
Vol 8 (2) ◽  
pp. 84-89 ◽  
Author(s):  
Myoung-Won Jung ◽  
Il-Tak Han ◽  
Moon-Young Choi ◽  
Joo-Hwan Lee ◽  
Jeong-Ki Pack
Keyword(s):  
Rain Rate ◽  
Prediction Models ◽  
Integration Time ◽  
Rate Distribution ◽  
Empirical Prediction

Millimeter wave attenuation in relation to rain rate distribution over a tropical station

1991 ◽  
Vol 12 (11) ◽  
pp. 1333-1348 ◽  
Author(s):  
P. K. Karmakar ◽  
R. Bera ◽  
G. Tarafdar ◽  
A. Maitra ◽  
A. K. Sen
Keyword(s):  
Millimeter Wave ◽  
Rain Rate ◽  
Wave Attenuation ◽  
Rate Distribution ◽  
Tropical Station

scholarly journals Study of the Effect of Simulated Rain on the Offset Parabolic Antenna at Ku-Band with Different Elevation Angles

2007 ◽  
Vol 2007 ◽  
pp. 1-5
Author(s):  
H. Mostafa ◽  
S. I. S. Hassan ◽  
J. S. Mandeep ◽  
M. F. Ain ◽  
H. A. Khedher
Keyword(s):  
Rain Rate ◽  
Water Layer ◽  
Heavy Rain ◽  
Horn Antenna ◽  
Physical Parameters ◽  
Worst Case ◽  
Atmospheric Propagation ◽  
First Case ◽  
Rf Signal ◽  
Ku Band

Effect of rain on the receiver antenna is a major factor to degrade the system performance in a frequency above 10 GHz. This paper deals with the wet antenna attenuation at Ku-band with three different frequencies at different rain rates. During the Ku-band propagation experiment, it was discovered that rain water on the antenna caused a significant attenuation. It is necessary to estimate the losses caused by water on the antenna in order to separate these losses from the atmospheric propagation losses. The experiment was done at USM Engineering Campus to study the attenuation for these physical parameters. A Ku-band RF signal was generated by a signal generator and transmitted via horn antenna. The signal was received using a smooth offset antenna of 60 cm by 54 cm (Astro dish) and measured using spectrum analyzer. In order to simulate a rain, pipes with bores of a same distance were implemented. Three cases were considered: in the first case one pipe was used to simulate low rain rate, the second case two pipes were used to simulate medium rain rate, and the third case three pipes were used to simulate heavy rain rate. In addition, the tap was used to control the flow of water in order to get more values of rain rate. The total attenuation of RF signals due to water layer on the feed and on the reflector feed was found to be 3.1 dB at worst case. On the other hand, the attenuation of RF signal due to the feed only was 2.83 dB, so the major attenuation occur was due to feed.

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 Dataset of daily variation of rain rate distribution at Ota in Southwest Nigeria

Data in Brief ◽  
2019 ◽  
Vol 25 ◽  
pp. 104154 ◽  
Author(s):  
Oluwafunmilayo O. Ometan ◽  
Temidayo V. Omotosho ◽  
Sayo A. Akinwumi ◽  
Mustapha O. Adewusi ◽  
Adenike O. Boyo
Keyword(s):  
Rain Rate ◽  
Daily Variation ◽  
Rate Distribution ◽  
Southwest Nigeria

Stability of rain-rate distribution: how many years to measure?

2006 ◽  
Vol 42 (10) ◽  
pp. 567 ◽  
Author(s):  
O. Fiser ◽  
V. Kveton
Keyword(s):  
Rain Rate ◽  
Rate Distribution

scholarly journals Real-Time Rain Rate Evaluation via Satellite Downlink Signal Attenuation Measurement

Sensors ◽  
2017 ◽  
Vol 17 (8) ◽  
pp. 1864 ◽  
Author(s):  
Filippo Giannetti ◽  
Ruggero Reggiannini ◽  
Marco Moretti ◽  
Elisa Adirosi ◽  
Luca Baldini ◽  
...  
Keyword(s):  
Real Time ◽  
Rain Rate ◽  
Signal Attenuation ◽  
Attenuation Measurement ◽  
Downlink Signal ◽  
Rate Evaluation

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
Sign in / Sign up

Export Citation Format

Share Document