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http://dx.doi.org/10.7840/kics.2016.41.11.1528

Optimum Elevation Angle Control of the Receiving Antenna for the Long Distance Air-Ground Common Data Link  

Ryu, Young-jae (The 2nd R&D Institute, Agency for Defense Development, Department of Electric Information Telecommunication Engineering, Chungnam National University)
Ahn, Jae-Min (Department of Electric Information Telecommunication Engineering, Chungnam National University)
Abstract
Common data link systems are designed to transmit the imaginary and signal intelligence data at long distance air-ground line of sight(LOS) link. In this paper, we analyze the received power variation according to the communication distance of the common data link using curved earth 2-Ray model suitable for received signal power analysis of long distance air-ground wireless channel. We propose optimal elevation angle control method of the receiving antenna to reduce a power variation caused by ground-reflected wave. Proposed method can get additional link margin compared to the conventional method without any additional hardware performance enhancement.
Keywords
Common Data Link; Unmanned Aerial Vehicle; Air-Ground Channel; Link Margin;
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Times Cited By KSCI : 3  (Citation Analysis)
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