ETRI-Knowledge Sharing Plaform

ENGLISH

성과물

논문 검색
구분 SCI
연도 ~ 키워드

상세정보

학술지 Performance Improvement of Wave Information Retrieval Algorithm Using Noise Reduction
Cited 1 time in scopus Download 3 time Share share facebook twitter linkedin kakaostory
저자
이병길, 임동희, 김진수
발행일
201709
출처
Journal of Information and Communication Convergence Engineering, v.15 no.3, pp.175-181
ISSN
2234-8255
출판사
한국정보통신학회
DOI
https://dx.doi.org/10.6109/jicce.2017.15.3.175
협약과제
17HH6200, 국가 기반시설로서 안전한 VTS 서비스를 위한 보안 기술개발, 이병길
초록
This paper describes the upgrade of an existing wave information retrieval algorithm by employing noise reduction in the pixel domain. Several algorithms for collecting wave information parameters from X-band radar image sequences including the wind field and current velocity have been developed over the past three decades. Using these algorithms, a band-pass filter (BPF) is applied to remove the non-wave contribution from the image spectra after the sea surface current velocity has been computed. However, such BPF designs have been both complex and insufficient in removing undesired components in Xband radar images. For this study, to improve the performance of wave information retrieval, an efficient noise reduction algorithm is incorporated into a regular wave information retrieval process. That is, the proposed algorithm was designed for operation in a more proper manner by effectively removing the undesired components in the pixel domain. Experiment results demonstrate that the proposed algorithm produces very close estimates to the buoy data records under undesirable noise conditions.
키워드
3-D FFT, Noise reduction, Ocean wave information, Radar images
KSP 제안 키워드
Band pass Filter(BPF), Experiment results, Image sequence, Information retrieval(IR), Noise reduction(NR), Radar image, Regular wave, Sea surface current, Three dimensional(3D), Wind field, X-band radar