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Sharma, S. V.
- Link Margin for Wireless Radio Communication Link
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Authors
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1 Systems Engineering Group, ISRO Satellite Centre, Bangalore, IN
1 Systems Engineering Group, ISRO Satellite Centre, Bangalore, IN
Source
ICTACT Journal on Communication Technology, Vol 8, No 3 (2017), Pagination: 1574-1581Abstract
The systematic evaluation of the link budget calculation for the satellite and terrestrial communication is presented in this article. Communication link between the satellite and earth station is dependent on various propagation and associated losses which are either constant or vary with weather conditions. Role of receiver noise, antenna pointing mechanism, atmospheric effects, slant height, interferences, bit error rate on the link margin are detailed in this article. Various equations for link budget calculation and a comparative table at various frequency bands are shown in this article which is useful for predicting link margin of LEO, GEO and Deep space missions. Tele-command, telemetry and ranging link margin at various frequencies are presented and budget analysis at Ka-band frequency performed.Keywords
Link Budget, Margin, Atmospheric Effects, Noise, Propagation Losses, Uplink, Downlink.
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