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http://dx.doi.org/10.5139/JKSAS.2010.39.3.254

The multipath propagation loss analysis of dynamic telemetry link using the 3D antenna pattern  

Kim, Kyun-Hoi (국방과학연구소)
Shin, Seok-Hyun (국방과학연구소)
Koh, Kwang-Ryul (국방과학연구소)
Yun, Jung-Kug (국방과학연구소)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.39, no.3, 2011 , pp. 254-260 More about this Journal
Abstract
Telemetry link is dynamic communication link that antenna gain and polarization are varying with the movement of the airplane. In this paper we calculated the antenna gain, polarization mismatch using the flight trajectory, motion of the airplane and 3D antenna pattern. And we modeled the multipath environment to the 2-Ray spherical earth reflection geometry, estimated the received signal strength when the narrow beam antenna received the RF signal transmitted from the airplane. Also we performed the flight test and after comparing measured value with the estimated value, we confirmed to almost coincide with each other.
Keywords
telemetry; propagation loss; polarization;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
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