한국전자파학회논문지 (The Journal of Korean Institute of Electromagnetic Engineering and Science)

  • 제25권2호
  • /
  • Pages.223-234
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  • 2014
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  • 1226-3133(pISSN)
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  • 2288-226X(eISSN)
한국전자파학회 (The Korean Institute of Electromagnetic Engineering and Science)
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이동형 위성단말을 위한 20 GHz 대역 채널 특성 분석

Analysis of Channel Characteristics at Around 20 GHz for Satellite On-The-Move Terminal

  • 투고 : 2013.10.08
  • 심사 : 2013.12.01
  • 발행 : 2014.02.28
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초록

본 논문은 위성통신 시스템에서 OTM(On-The-Move: 이동형) 위성단말이 운용되는 지역의 채널 특성을 분석한 결과를 다룬다. 무궁화 5호 위성의 20 GHz 대역 수신 신호를 이용하여 대전~대천까지 실 주행시험을 수행하였고, 측정 결과를 고속도로 환경과 국도 환경 두 부분으로 구분하여 통계적 분석을 수행하였다. 통계적 분석에는 확률밀도 함수와 Markov 모델을 이용하여 위성 채널의 특성을 분석하였고, 더불어 국도 환경과 고속도로 환경에서 수신 전력의 임계값 설정에 따른 ACD(Average Connection Duration), AFD(Average Fade Duration), LCR(Level Crossing Rate)을 각각 제시하고, 서로 비교하였다.

This paper describes the analysis results of channel characteristics in the operating area of satellite OTM(On-The-Move) terminal. The communication channel between the Koreasat-5 and OTM terminal on a test car is measured and recorded from Daejeon to Daecheon, using the downlink frequency of around 20 GHz. And the measurement data are divided into two classes ; highway environment and national road environment, and then are statistically analyzed. The statistical evaluation of satellite channel is conducted by using probability density function and Markov model and then presents average connection duration(ACD), average fade duration( AFD), and level crossing rate(LCR) of highway environment and national road environment. Finally the statistics data of the two environments are compared with each other.

키워드

참고문헌

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피인용 문헌

  1. The Analysis of Channel Characteristics on Downtown of Daejeon for K-Band Satellite Communication Using 3D Map vol.25, pp.5, 2014, https://doi.org/10.5515/KJKIEES.2014.25.5.607
  2. The Analysis of Channel Characteristics on Downtown of Daejeon for K Band Satellite Communication vol.17, pp.5, 2014, https://doi.org/10.9766/KIMST.2014.17.5.620