Investigation on Doppler spectra of microwave scattering from sea surface
文献类型：期刊论文
| 作者 | Jiang Wen-Zheng1,2,3; Yuan Ye-Li1; Wang Yun-Hua4; Zhang Yan-Min4 |
| 刊名 | ACTA PHYSICA SINICA
 |
| 出版日期 | 2012-06-01 |
| 卷号 | 61期号:12页码:124213- |
| 关键词 | time-varying sea surface electromagnetic scattering Doppler spectra |
| ISSN号 | 1000-3290 |
| 通讯作者 | Yuan, YL (reprint author), SOA, Inst Oceanog 1, Qingdao 266061, Peoples R China. |
| 英文摘要 | Based on the composite surface scattering model, the analytical formulas for Doppler shift and bandwidth of radar echoes return from time-varying sea surface are derived. In our derivations, the influences of the tilt modulation, the shadow and the curvature of large-scale undulating waves are all taken into account for achieving more reasonable results. Comparisons between the theoretical results and direct numerical simulations demonstrate that the analytical formulas can significantly improve the simulated results. And the effects of the tilt modulation, the shadow and the curvature on Doppler spectral properties are discussed in detail. From the simulated results, it is found that the predicted Doppler shifts are always larger in HH-polarization than in VV-polarization due to the tilt modulation of large-scale waves. In addition, at low-grazing angles, the shadow of large-scale waves results in a rapid increase of the predicted Doppler shift, and on the contrary maks the bandwidth narrower. |
| 学科主题 | Physics, Multidisciplinary |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000306394400040 |
| 公开日期 | 2013-09-24 |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/12165]  |
| 专题 | 海洋研究所_海洋环流与波动重点实验室 |
| 作者单位 | 1.SOA, Inst Oceanog 1, Qingdao 266061, Peoples R China 2.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China 3.Chinese Acad Sci, Grad Sch, Qingdao 100049, Peoples R China 4.Ocean Univ China, Coll Informat Sci & Engn, Qingdao 266003, Peoples R China |
| 推荐引用方式 GB/T 7714 | Jiang Wen-Zheng,Yuan Ye-Li,Wang Yun-Hua,et al. Investigation on Doppler spectra of microwave scattering from sea surface[J]. ACTA PHYSICA SINICA,2012,61(12):124213-. |
| APA | Jiang Wen-Zheng,Yuan Ye-Li,Wang Yun-Hua,&Zhang Yan-Min.(2012).Investigation on Doppler spectra of microwave scattering from sea surface.ACTA PHYSICA SINICA,61(12),124213-. |
| MLA | Jiang Wen-Zheng,et al."Investigation on Doppler spectra of microwave scattering from sea surface".ACTA PHYSICA SINICA 61.12(2012):124213-. |
入库方式： OAI收割
来源：海洋研究所
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