A novel space-time coding scheme used for mimo-sar systems
文献类型：期刊论文
| 作者 | Wang, Jie1,2; Liang, Xing-Dong1; Chen, Long-Yong1; Li, Kun1,2 |
| 刊名 | Ieee geoscience and remote sensing letters
 |
| 出版日期 | 2015-07-01 |
| 卷号 | 12期号:7页码:1556-1560 |
| 关键词 | Ambiguous energy suppression Multi-input-multi-output synthetic aperture radar (mimo-sar) Space-time coding (stc) |
| ISSN号 | 1545-598X |
| DOI | 10.1109/lgrs.2015.2412961 |
| 通讯作者 | Wang, jie(wangjie110@mails.ucas.ac.cn) |
| 英文摘要 | Attention has been devoted to multi-input-multi-output (mimo) synthetic aperture radar (sar) systems in recent years. the applications of mimo-sar systems that involve high-resolution wide-swath remote sensing, 3-d imaging, and multi-baseline interferometry are seriously limited by the ambiguous energy introduced by the imperfect orthogonal waveforms. the ambiguous energy degrades sar image severely, because it can be accumulated from closely spaced scatters. in order to suppress the ambiguous energy, the space-time coding (stc) scheme using the alamouti technique has been proposed recently. however, this scheme is based on the assumption that the channel responses are constant within the consecutive transmissions. for the time-variant channel responses caused by motion errors or other factors, there will be residual ambiguous energy and "ghost targets." in this letter, a novel stc scheme suitable for mimo-sar systems is proposed. the performance of the proposed scheme is immune to the time-variant channel responses. moreover, it can get more spatial diversities to enhance the mimo sar imaging applications. the proposed scheme is validated by numerical simulation results. |
| WOS关键词 | WIDE-SWATH SAR |
| WOS研究方向 | Geochemistry & Geophysics ; Engineering ; Remote Sensing ; Imaging Science & Photographic Technology |
| WOS类目 | Geochemistry & Geophysics ; Engineering, Electrical & Electronic ; Remote Sensing ; Imaging Science & Photographic Technology |
| 语种 | 英语 |
| WOS记录号 | WOS:000356543100025 |
| 出版者 | IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2376458 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Wang, Jie |
| 作者单位 | 1.Chinese Acad Sci, Inst Elect, Sci & Technol Microwave Imaging Lab, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Jie,Liang, Xing-Dong,Chen, Long-Yong,et al. A novel space-time coding scheme used for mimo-sar systems[J]. Ieee geoscience and remote sensing letters,2015,12(7):1556-1560. |
| APA | Wang, Jie,Liang, Xing-Dong,Chen, Long-Yong,&Li, Kun.(2015).A novel space-time coding scheme used for mimo-sar systems.Ieee geoscience and remote sensing letters,12(7),1556-1560. |
| MLA | Wang, Jie,et al."A novel space-time coding scheme used for mimo-sar systems".Ieee geoscience and remote sensing letters 12.7(2015):1556-1560. |
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来源：中国科学院大学
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