A curvelet-based method to determine wave directions from nautical X-band radar images

CORC > 南海海洋研究所 > 中国科学院南海海洋研究所 > 热带海洋环境国家重点实验室(LTO)

	A curvelet-based method to determine wave directions from nautical X-band radar images
	Zha, GZ; He, QY; Guan, CL; Chen, JT
刊名	ACTA OCEANOLOGICA SINICA
	2018
卷号	37 期号:1 页码:11-19
关键词	X-band radar wave direction surface wave curvelet transform
通讯作者	clguan@ouc.edu.cn
英文摘要	A new method to determine wave directions from nautical X-band images is proposed. The signatures of ocean waves show obvious scale and directional characteristics in nautical X-band radar images. Curvelet transform (CT) possesses very high scale and directional sensitivities. Therefore, it has good capability to analyze ocean wave fields. The radar images are decomposed at different scales, in different directions, and at different positions by CT, and curvelet coefficients are obtained. Given to the scale and directional characteristics of surface waves, the information of ocean waves is centralized in the curvelet coefficients of certain directions and at certain scales. Therefore, the wave orientations can be determined. The 180 ambiguity is removed by calculating crosscorrelation coefficients (CCCs) between continuous collected images. The proposed method is verified by the dataset collected on the Northwest coast of the Zhangzi Island in the Yellow Sea of China from March to April 2009.
学科主题	Oceanography
内容类型	期刊论文
源URL	[http://ir.scsio.ac.cn/handle/344004/17111]
专题	南海海洋研究所_热带海洋环境国家重点实验室(LTO)
推荐引用方式 GB/T 7714	Zha, GZ,He, QY,Guan, CL,et al. A curvelet-based method to determine wave directions from nautical X-band radar images[J]. ACTA OCEANOLOGICA SINICA,2018,37(1):11-19.
APA	Zha, GZ,He, QY,Guan, CL,&Chen, JT.(2018).A curvelet-based method to determine wave directions from nautical X-band radar images.ACTA OCEANOLOGICA SINICA,37(1),11-19.
MLA	Zha, GZ,et al."A curvelet-based method to determine wave directions from nautical X-band radar images".ACTA OCEANOLOGICA SINICA 37.1(2018):11-19.