Title:
PRECIPITATION PARTICLE IDENTIFICATION DEVICE, PRECIPITATION PARTICLE IDENTIFICATION METHOD, AND PRECIPITATION PARTICLE IDENTIFICATION PROGRAM
Document Type and Number:
WIPO Patent Application WO/2019/111641
Kind Code:
A1
Abstract:
[Problem] To provide a precipitation particle identification device that is capable of more accurately identifying a precipitation particle by making effective use of polarization parameters. [Solution] A precipitation particle identification device comprising an acquisition unit, a data processing unit, a distribution data generation unit, a distribution data analysis unit, and an identification processing unit. The acquisition unit acquires a horizontally polarized reception signal and a vertically polarized reception signal obtained by transceiving horizontally polarized waves and vertically polarized waves. The data processing unit acquires radar reflection factor information and reflection factor difference information that constitute polarization parameters calculated on the basis of the horizontally polarized reception signal and the vertically polarized reception signal. The distribution data generation unit generates distribution data illustrating the relationship between the radar reflection factor information and the reflection factor difference information in a plurality of sampling regions subsumed in a region to be identified. The distribution data analysis unit calculates, on the basis of the distribution data, an evaluation value used to identify precipitation particle type. The identification processing unit identifies, on the basis of the evaluation value, the type of precipitation particles present in the region to be identified.
Inventors:
HAYANO MARIKO (JP)
Application Number:
PCT/JP2018/041905
Publication Date:
June 13, 2019
Filing Date:
November 13, 2018
Export Citation:
Assignee:
FURUNO ELECTRIC CO (JP)
International Classes:
G01W1/14; G01S13/95
Domestic Patent References:
| WO2017051647A1 | 2017-03-30 | |||
| WO2017122408A1 | 2017-07-20 |
Foreign References:
| JP2011027546A | 2011-02-10 | |||
| US8601864B1 | 2013-12-10 | |||
| US20150145717A1 | 2015-05-28 |
Other References:
UYEDA HIROSHI : "Next Generation Observations on Precipitation System", TENKI - WEATHER, vol. 56, no. 6, 30 June 2009 (2009-06-30), JP, pages 420 - 425, XP009523353, ISSN: 0546-0921
SUZUKI OSAMU : "A story of an old and new observation device, weather radar", LECTURE MATERIALS OF THE 44TH SUMMER COLLEGE 'NEW METEOROLOGY', 7 August 2010 (2010-08-07), JP, pages 1 - 5, XP009523354
See also references of EP 3745162A4
TAKEHARU KOUKETSUHIROSHI UYEDATADAYASU OHIGASHIMARIKO OUEHIROTO TAKEUCHITARO SHINODAKAZUHISA TSUBOKI: "A Hydrometeor Classification Method for X-Band Polarimetric Radar: Construction and Validation Focusing on Solid Hydrometeors under Moist Environments", JOURNAL OF ATMOSPHERIC AND OCEANIC TECHNOLOGY, vol. 32, 2015, pages 2052 - 2074
SUZUKI OSAMU : "A story of an old and new observation device, weather radar", LECTURE MATERIALS OF THE 44TH SUMMER COLLEGE 'NEW METEOROLOGY', 7 August 2010 (2010-08-07), JP, pages 1 - 5, XP009523354
See also references of EP 3745162A4
TAKEHARU KOUKETSUHIROSHI UYEDATADAYASU OHIGASHIMARIKO OUEHIROTO TAKEUCHITARO SHINODAKAZUHISA TSUBOKI: "A Hydrometeor Classification Method for X-Band Polarimetric Radar: Construction and Validation Focusing on Solid Hydrometeors under Moist Environments", JOURNAL OF ATMOSPHERIC AND OCEANIC TECHNOLOGY, vol. 32, 2015, pages 2052 - 2074
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