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    • 50. 发明公开
    • PRECIPITATION PARTICLE IDENTIFICATION DEVICE, PRECIPITATION PARTICLE IDENTIFICATION METHOD, AND PRECIPITATION PARTICLE IDENTIFICATION PROGRAM
    • EP3745162A1
    • 2020-12-02
    • EP18886505.9
    • 2018-11-13
    • Furuno Electric Co., Ltd.
    • HAYANO, Mariko
    • G01W1/14G01S13/95
    • The present disclosure provides a precipitation particle discriminator etc. which can accurately discriminate a type of precipitation particles by efficiently using polarization parameters. The precipitation particle discriminator includes an acquiring part, a data processor, a distribution data generating module, a distribution data analyzing module and a discrimination processing module. The acquiring part acquires horizontally polarized reception signals and vertically polarized reception signals by transmitting and receiving horizontally polarized waves and vertically polarized waves, respectively. The data processor acquires information on radar reflective factors and information on differential reflective factors that are polarization parameters calculated based on the horizontally polarized reception signal and the vertically polarized reception signal. The distribution data generating module generates distribution data indicative of relationship between the radar reflective factor information and the differential reflective factor information in a plurality of sampling ranges included in a discrimination target range. The distribution data analyzing module calculates an evaluation value used for discriminating a type of precipitation particles based on the distribution data. The discrimination processing module discriminates the type of the precipitation particles existing in the discrimination target range based on the evaluation value.