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

  • 제18권1호
  • /
  • Pages.96-104
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  • 2007
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  • 1226-3133(pISSN)
  • /
  • 2288-226X(eISSN)
한국전자파학회 (The Korean Institute of Electromagnetic Engineering and Science)
권호 표지
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1~6 GHz 대역 수풀 손실 특성 측정 및 모델링

Measurement and Modeling of Vegetation Loss in the Frequency Range of 1~6 GHz

  • Han, Il-Tak (Department of Radio Science and Engineering, Chungnam National University) ;
  • Jung, Myoung-Won (Department of Radio Science and Engineering, Chungnam National University) ;
  • Back, Jung-Ki (Department of Radio Science and Engineering, Chungnam National University)
  • 발행 : 2007.01.31
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초록

현재 국제적으로 수풀 손실 예측 모델이나 측정 데이터가 매우 부족하다. 본 논문에서는 2005년과 2006년, 2년에 걸쳐 $1{\sim}6\;GHz$ 대역 국내 수풀 및 가로 환경에 많이 분포하는 소나무(pine tree), 히말라야시다(hymalaya cedar),플라타너스나무(plane tree), 메타나무(dawn-redwood tree)등의 수풀에 대한 수풀 손실 특성 측정 수행 결과로부터, ITU-R P.833에서 제시하고 있는 RET(radiative energy transfer) 모델 파라미터를 도출하였으며, 모델 보정을 시도하였다. 본 연구 결과는 2005년, 2006년 ITU-R SG WP 3J 회의에서 권고서에 반영되었다.

Currently, there is a lack of suitable prediction model and measurement data for vegetation loss. So in this paper, vegetation loss measurement has been performed for seven different tree-species, including dawn-redwood tree, plane tree, pine tree and hymalaya cedar in the frequency range of $1.0{\sim}6.0\;GHz$, for the two years, from 2005 to 2006 years. And then, extraction and revision for the proposed RET model input parameters in ITU-R P.833 has been performed. The key results of measurement and RET modeling has been presented in this paper. The results of this study have been adapted for ITU-R recommendation at the ITU-R meeting in 2005 and 2006.

키워드

참고문헌

  1. ITU-R, 'Attenuation in vegetation', ITU-R Rec p. 833, 2004
  2. ITU-R, 'Propagation by diffraction', ITU-R Rec p. 526, 2003
  3. ITU-R, 'Propagation data and prediction methods for the planning of indoor radiocommunication systems and radio local area networks in the frequency range 900 MHz to 100 GHz', ITU-R Rec. p. 1238, 2003
  4. ITU-R, 'Electrical characteristics of the surface of the earth', ITU-R Rec. p. 527, 2003
  5. N. C. Rogers, A. Seville, 'A generic model of 1-60 GHz Radio propagation through vegetation', May 2002
  6. R. A. Johnson, F. Schwering, 'A transport theory of millimeter wave propaga tion in woods and forests', CECOM-TR-85-1, FortMonmount, New Jersey, 1985
  7. ITU-R, WP document, Republic of Korea, no. 3J/102, Oct. 2005
  8. ITU-R, WP document, Republic of Korea, no. 3J/160, Oct. 2006