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<p>Ka-Band signal propagation experiment at NESAC Umiam</p>

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Authentication Code dc
 
Title Statement <p>Ka-Band signal propagation experiment at NESAC Umiam</p>
 
Added Entry - Uncontrolled Name Debnath, Anjan ; North Eastern Space Applications Centre, Department of Space, Government of India
 
Uncontrolled Index Term Ka-Band, Beacon Receiver, Laser Precipitation Monitor, Rain Rate, Z-R relationship
 
Summary, etc. <p>A Ka-Band signal propagation study under tropical monsoon climate was taken up jointly by ISRO/ONERA/CNES. The program was aimed at finding the degree to which Ka-Band signals get affected by Rain. Dual cross-polarized Ka Band beacon signals onboard GSAT-14 satellite, of frequencies 20.2 GHz and 30.5 GHz are used for the experiment. Data available by various instruments were compared with ITU-R predicted values. Results for the years 2016 and 2017 at Umiam shows underestimation of both Rainfall and Signal Attenuation by ITU-R predicted models. It has also been found that the Rainfall is mostly concentrated in three months (June, July, August) and the maximum attenuation that Ka-Band signals suffer during rain at Umiam  is around 30-40 dB. The actual Rainfall and Attenuation of both 20.2 GHz and 30.5 GHz signals have been compared with ITU-R predictions and has been found to be much above the predicted levels. A Study of the Z-R relationship for the rainfall and comparison with known relations indicate that a new distribution is required for the region.</p>
 
Publication, Distribution, Etc. Indian Journal of Radio & Space Physics (IJRSP)
2021-03-31 17:18:28
 
Electronic Location and Access application/pdf
http://op.niscair.res.in/index.php/IJRSP/article/view/19790
 
Data Source Entry Indian Journal of Radio & Space Physics (IJRSP); ##issue.vol## 49, ##issue.no## 1-2 (2020): Indian Journal of Radio & Space Physics
 
Language Note en
 
Nonspecific Relationship Entry http://op.niscair.res.in/index.php/IJRSP/article/download/19790/60499
http://op.niscair.res.in/index.php/IJRSP/article/download/19790/60500
http://op.niscair.res.in/index.php/IJRSP/article/download/19790/60501
 
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