• Title/Summary/Keyword: UF Data of Meteorological radar

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Design of Meteorological Radar Echo Classifier Using Fuzzy Relation-based Neural Networks : A Comparative Studies of Echo Judgement Modules (FNN 기반 신경회로망을 이용한 기상 레이더 에코 분류기 설계 : 에코판단 모듈의 비교 분석)

  • Ko, Jun-Hyun;Song, Chan-Seok;Oh, Sung-Kwun
    • Journal of the Korean Institute of Intelligent Systems
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    • v.24 no.5
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    • pp.562-568
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    • 2014
  • There exist precipitation echo and non-precipitation echo in the meteorological radar. It is difficult to effectively issue the right weather forecast because of a difficulty in determining these ambiguous point. In this study, Data is extracted from UF data of meteorological radar used. Input and output data for designing two classifier were built up through the analysis of the characteristics of precipitation and non-precipitation. Selected input variables are considered for better performance and echo classifier is designed using fuzzy relation-based nueral network. Comparative studies on the performance of echo classifier are carried out by considering both echo judgement module 1 and module 2.

Design of Meteorological Radar Echo Classifier Based on RBFNN Using Radial Velocity (시선속도를 고려한 RBFNN 기반 기상레이더 에코 분류기의 설계)

  • Bae, Jong-Soo;Song, Chan-Seok;Oh, Sung-Kwun
    • Journal of the Korean Institute of Intelligent Systems
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    • v.25 no.3
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    • pp.242-247
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    • 2015
  • In this study, we propose the design of Radial Basis Function Neural Network(RBFNN) classifier in order to classify between precipitation and non-precipitation echo. The characteristics of meteorological radar data is analyzed for classifying precipitation and non-precipitation echo. Input variables is selected as DZ, SDZ, VGZ, SPN, DZ_FR, VR by performing pre-processing of UF data based on the characteristics analysis and these are composed of training and test data. Finally, QC data being used in Korea Meteorological Administration is applied to compare with the performance results of proposed classifier.