기상레이더 반사도 자료의 계층적 압축 기법

Nowadays the amount of data obtained from advanced weather radars is growing to provide higher spatio-temporal resolution. Accordingly radar data compression is important to use limited network bandwidth and storage effectively. In this paper, we proposed a hierarchical compression method for weathe...

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Bibliographic Details
Published in멀티미디어학회논문지 Vol. 18; no. 7; pp. 793 - 805
Main Authors 장봉주(Bong-Joo Jang), 이건행(Keon-Haeng Lee), 임상훈(Sanghun Lim), 권기룡(Ki-Ryong Kwon)
Format Journal Article
LanguageKorean
Published 한국멀티미디어학회 2015
Subjects
전자/정보통신공학
Reflectivity
Weather Radar
Compression
Hierarchical Compression
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Summary:Nowadays the amount of data obtained from advanced weather radars is growing to provide higher spatio-temporal resolution. Accordingly radar data compression is important to use limited network bandwidth and storage effectively. In this paper, we proposed a hierarchical compression method for weather radar data having high spatio-temporal resolution. The method is applied to radar reflectivity and evaluated in aspects of accuracy of quantitative rainfall intensity. The technique provides three compression levels from only 1 compressed stream for three radar user groups-signal processor, quality controller, weather analyst. Experimental results show that the method has maximum 13% and minimum 33% of compression rates, and outperforms 25% higher than general compression technique such as gzip.
Bibliography:KISTI1.1003/JNL.JAKO201530848516098
G704-000883.2015.18.7.001
ISSN:1229-7771
2384-0102
DOI:10.9717/kmms.2015.18.7.793