Optimized Optical Links for High Spectral Purity Ku-band Signal Distribution

2006 ◽  
Author(s):  
Bertrand Onillon ◽  
Jacques Rayssac ◽  
Olivier Llopis ◽  
Benoit Benazet
Keyword(s):  
Spectral Purity ◽  
Signal Distribution ◽  
Optical Links ◽  
Band Signal ◽  
Ku Band

Modeling and Validation of Ku-Band Signal Attenuation Through Rocket Plumes

2013 ◽  
Vol 50 (5) ◽  
pp. 992-1001 ◽  
Author(s):  
Bartel van der Veek ◽  
Sunil Chintalapati ◽  
Daniel R. Kirk ◽  
Hector Gutierrez ◽  
Rudy F. Bun
Keyword(s):  
Signal Attenuation ◽  
Rocket Plumes ◽  
Band Signal ◽  
Ku Band

scholarly journals Rain Attenuation Study at Ku-Band over Earth-Space Path in South Korea

2019 ◽  
Vol 2019 ◽  
pp. 1-12 ◽  
Author(s):  
Sujan Shrestha ◽  
Dong-You Choi
Keyword(s):  
Measurement Techniques ◽  
Rain Attenuation ◽  
Measured Data ◽  
Accurate Estimation ◽  
Experimental Setup ◽  
Signal Attenuation ◽  
Attenuation Models ◽  
Band Signal ◽  
Observation Period ◽  
Ku Band

Rain attenuation measurement techniques are studied with appropriate prediction of rain attenuation at Ku-band for Koreasat 6. This is accomplished by the establishment of experimental setup in Mokdong at 12.25 GHz link. The databases are analyzed for three years, 2013 till 2015. During observation period, rainfall rate of 50 mm/hr is obtained which is measured by OTT Parsivel showing the signal attenuated by 10.7 dB for 0.01% of the occurrence. Comparison with the measured data demonstrates that the proposed technique provides sufficiently accurate estimation for Ku-band signal attenuation in site specifically whose effectiveness is performed through the statistical analysis against the established rain attenuation models. The proposed technique is judged through the error matrices where relative error margins of 52.82, 4.11, and 23.64% are obtained for 0.1%, 0.01%, and 0.001% of the occurrence.

Effects of melting layer on Ku-band signal depolarization

2014 ◽  
Vol 117 ◽  
pp. 95-100 ◽  
Author(s):  
Thumree Sarkar ◽  
Saurabh Das ◽  
Animesh Maitra
Keyword(s):  
Melting Layer ◽  
Band Signal ◽  
Ku Band

scholarly journals Development of software for Ku-Band signal availability due to rain attenuation

2019 ◽  
Vol 13 (3) ◽  
pp. 1252
Author(s):  
Norsuzila Ya’acob ◽  
Noraisyah Tajudin ◽  
Muhammad Rezza Alui ◽  
Nani Fadzlina Naim ◽  
Murizah Kassim ◽  
...  
Keyword(s):  
Satellite Communication ◽  
Rain Rate ◽  
Prediction Models ◽  
Weather Prediction ◽  
Rain Attenuation ◽  
Cumulative Distribution ◽  
One Year ◽  
Satellite Dish ◽  
Band Signal ◽  
Ku Band

<span>Ku-Band signal is often used for satellite communication mainly for direct to home (DTH) broadcasting. One of the major issues using this band is that the signal will be affected by raindrops. Raindrops absorb and scatter signal that operates at a frequency of more than 10 GHz. However, studies have been done to predict and measure the rainfall rate and rain attenuation. The rain attenuation in Ku-Band range and the rain rate were measured at satellite receiving dish, pointed towards the orbital slot 91.5 E over a one-year period in 2013. The cumulative distribution of rain rate obtained as well as a cumulative distribution of rain attenuation obtained are presented and compared with the rain prediction models. The aim is to get the best model to be used for the purpose of software development. It was found out that the DAH prediction model is fairly equitable when compared to direct satellite dish receiving measurements in Malaysia. The model provided a suitable baseline in developing a user interface software for weather prediction.</span>

Satellite-Signal Dependence on Rain and Atmospheric Temperature

2021 ◽  
Vol 9 (2) ◽  
pp. 71-74
Author(s):  
Ravindra Naithani ◽  
◽  
Thaisa Jawhly ◽  
Ramesh Chandra Tiwari ◽  
◽  
...  
Keyword(s):  
Rain Rate ◽  
Signal Strength ◽  
Atmospheric Temperature ◽  
Received Signal Strength ◽  
Strong Positive Correlation ◽  
Rain Intensity ◽  
Satellite Signal ◽  
Signal Dependence ◽  
Band Signal ◽  
Ku Band

In this paper, we present the Ku band signal strength relationship with rain rate and temperature. The correlation analysis of rain intensity with signal data indicates that rain rate negatively impacts the Ku band link while the atmospheric temperature has a strong positive correlation with the received signal strength. The statistical analysis showed that both temperature and rain intensity significantly influenced the received-signal strength data. This study is a preliminary analysis and aims to draw the association between a Ku band signal with rain intensity and temperature.

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