Journal of electromagnetic engineering and science

The Korean Institute of Electromagnetic Engineering and Science (한국전자파학회)
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Empirical Prediction Models of 1-min Rain Rate Distribution for Various Integration Time

  • Jung, Myoung-Won (Dept. of Radio Science & Engineering, Chungnam National University) ;
  • Han, Il-Tak (Dept. of Radio Science & Engineering, Chungnam National University) ;
  • Choi, Moon-Young (Dept. of Radio Science & Engineering, Chungnam National University) ;
  • Lee, Joo-Hwan (Digital Broadcasting Technology Lab., ETRI) ;
  • Pack, Jeong-Ki (Dept. of Radio Science & Engineering, Chungnam National University)
  • Published : 2008.06.30
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Abstract

In a wireless channel above microwave frequency, rain attenuation is very important. In order to predict rain attenuation, 1-min. rain rate distribution is required. This paper discusses appropriate conversion methods to estimate 1-minute rain rate from that of other integration time. Based on the measurement data filed in ITU-R WP3J including ETRI data for 6 consecutive years, distributions of rain rate with 1-, 5-, 10-, 20-, 30-minute integration time were analyzed, both on the global and regional basis, and the parametric relationship between the statistical characteristics of 1-minute and other measurement data were investigated to deduce the conversion methods. It is shown that the global model works good with good accuracy for 5-, 10-, 20-min integration time, and the global model is also applicable globally with good accuracy for 5-, 10-, 20-min integration time. The global conversion model was adopted last year as an ITU-R document for new recommendation. The regional conversion model would also be very useful for locations of similar climatic zone.

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References

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Cited by

  1. Rain rate modeling of 1-min from various integration times in South Korea vol.5, pp.1, 2016, https://doi.org/10.1186/s40064-016-2062-3