Time-frequency analysis-based time-windowing algorithm for the inverse synthetic aperture radar imaging of ships | |
Zhou, Peng1; Zhang, Xi2; Sun, Weifeng1; Dai, Yongshou1; Wan, Yong1 | |
刊名 | JOURNAL OF APPLIED REMOTE SENSING |
2018-01-02 | |
卷号 | 12期号:1页码:015001:1-21 |
关键词 | inverse synthetic aperture radar ship imaging time-frequency analysis optimal imaging time |
ISSN号 | 1931-3195 |
DOI | 10.1117/1.JRS.12.015001 |
英文摘要 | An algorithm based on time-frequency analysis is proposed to select an imaging time window for the inverse synthetic aperture radar imaging of ships. An appropriate range bin is selected to perform the time-frequency analysis after radial motion compensation. The selected range bin is that with the maximum mean amplitude among the range bins whose echoes are confirmed to be contributed by a dominant scatter. The criterion for judging whether the echoes of a range bin are contributed by a dominant scatter is key to the proposed algorithm and is therefore described in detail. When the first range bin that satisfies the judgment criterion is found, a sequence composed of the frequencies that have the largest amplitudes in every moment's time-frequency spectrum corresponding to this range bin is employed to calculate the length and the center moment of the optimal imaging time window. Experiments performed with simulation data and real data show the effectiveness of the proposed algorithm, and comparisons between the proposed algorithm and the image contrast-based algorithm (ICBA) are provided. Similar image contrast and lower entropy are acquired using the proposed algorithm as compared with those values when using the ICBA. (c) 2018 Society of Photo-Optical Instrumentation Engineers (SPIE) |
电子版国际标准刊号 | 19313195 |
资助项目 | National Natural Science Foundation of China[61501520] |
WOS研究方向 | Environmental Sciences & Ecology ; Remote Sensing ; Imaging Science & Photographic Technology |
语种 | 英语 |
出版者 | SPIE-SOC PHOTO-OPTICAL INSTRUMENTATION ENGINEERS |
WOS记录号 | WOS:000419767000001 |
内容类型 | 期刊论文 |
源URL | [http://ir.fio.com.cn/handle/2SI8HI0U/2995] |
专题 | 业务部门_海洋物理与遥感研究室 |
作者单位 | 1.China Univ Petr, Coll Informat & Control Engn, Qingdao, Peoples R China; 2.State Ocean Adm, Inst Oceanog 1, Qingdao, Peoples R China |
推荐引用方式 GB/T 7714 | Zhou, Peng,Zhang, Xi,Sun, Weifeng,et al. Time-frequency analysis-based time-windowing algorithm for the inverse synthetic aperture radar imaging of ships[J]. JOURNAL OF APPLIED REMOTE SENSING,2018,12(1):015001:1-21. |
APA | Zhou, Peng,Zhang, Xi,Sun, Weifeng,Dai, Yongshou,&Wan, Yong.(2018).Time-frequency analysis-based time-windowing algorithm for the inverse synthetic aperture radar imaging of ships.JOURNAL OF APPLIED REMOTE SENSING,12(1),015001:1-21. |
MLA | Zhou, Peng,et al."Time-frequency analysis-based time-windowing algorithm for the inverse synthetic aperture radar imaging of ships".JOURNAL OF APPLIED REMOTE SENSING 12.1(2018):015001:1-21. |
个性服务 |
查看访问统计 |
相关权益政策 |
暂无数据 |
收藏/分享 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论