Knowledge Management System Of South China Sea Institute of Oceanology,CAS
| A curvelet-based method to determine wave directions from nautical X-band radar images | |
| Zha, GZ; He, QY; Guan, CL; Chen, JT; clguan@ouc.edu.cn | |
| 2018 | |
| 发表期刊 | ACTA OCEANOLOGICA SINICA
 |
| 卷号 | 37期号:1页码:11-19 |
| 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. |
| 部门归属 | [Zha, Guozhen; Guan, Changlong] Ocean Univ China, Coll Ocean & Atmospher Sci, Qingdao 266100, Peoples R China; [Guan, Changlong] Ocean Univ China, Phys Oceanog Lab, Qingdao 266100, Peoples R China; [He, Qingyou] Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanog, Guangzhou 510301, Guangdong, Peoples R China; [Chen, Jitao] Hydrol Bur Yellow River Conservancy Commiss, Zhengzhou 450004, Henan, Peoples R China |
| 关键词 | X-band Radar Wave Direction Surface Wave Curvelet Transform |
| 学科领域 | Oceanography |
| 资助项目 | LTO |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.scsio.ac.cn/handle/344004/17111 |
| 专题 | 热带海洋环境国家重点实验室(LTO) |
| 通讯作者 | clguan@ouc.edu.cn |
| 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,&clguan@ouc.edu.cn.(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. |
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| A curvelet-based met（2060KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | 请求全文 | |
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