Journal of Satellite, Information and Communications (한국위성정보통신학회논문지)

Korea Society of Satellite Technology (한국위성정보통신학회)
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Conversion of Rain Rate Cumulative Distributions by Multiple Regression Model

다중회기모형에 의한 강우강도 누적분포의 변환

  • 룽 납 튜이 둥 (경희대학교 전자정보대학 전자.전파공학과) ;
  • 손원 (경희대학교 전자정보대학 전자.전파공학과)
  • Received : 2014.10.01
  • Accepted : 2014.10.31
  • Published : 2014.12.31
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Abstract

At frequencies above 10 GHz, rain is a dominant propagation phenomenon on satellite link attenuation. The prediction of rain attenuation is based on the point rainfall rate for 0.01 % of an average year with one minute integration time. Most of available rain data have been measured with 60 minutes integration time, and many researchers have been studying on converting the rainfall rate data from various integration times to one minute integration time. This paper proposes a new Multiple Regression model for the conversion, and the proposed schemes show better performance than the existing schemes.

10 GHz 이상의 주파수에서는 강우가 위성링크감쇠의 유력한 전달현상이다. 강우감쇠를 예측하기 위해서는 평균년의 0.01%를 초과하는 1분단위로 누적된 강우율이 필요하다. 대부분의 강우데이터는 60분 누적시간으로 측정되었기 때문에, 강우데이터를 다수의 누적시간으로부터 1분 누적시간으로 변환하는 연구가 많이 수행되었다. 이 논문은 새로운 변환 모델인 다중회기모형을 제안하며, 제안 방안은 기존 방안보다 우수한 성능을 보여 주었다.

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References

  1. Recommendation ITU-R P.837-5 Characteristics of precipitation for propagation modeling, August 2007.
  2. Tattelman, P., and Grantham, D., "A review of models for estimating 1 min rainfall rates for microwave attenuation calculations," IEEE Trans. Comm., 1985, 33, (4), pp. 361-372. https://doi.org/10.1109/TCOM.1985.1096305
  3. L. Emiliani, L. Luini, C. Capsoni, "Analysis and parameterization of methodologies for the conversion of rain rate cumulative distributions from various integration times to one minute," IEEE Antennas and Propagation Magazine, Vol. 51, No. 3. pp. 70-84, 2009.
  4. J. Lavergnat, P. Gole, "A Stochastic Raindrop Time Distribution Model," AMS Journal of Applied Meteorology, Vol. 37, pp 805-818, Aug. 1998. https://doi.org/10.1175/1520-0450(1998)037<0805:ASRTDM>2.0.CO;2