| 使用合成滤波器组的SAS方位向非均匀采样信号重构 |
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| 引用本文： | 任强,江泽林,刘维,黄勇,刘纪元.使用合成滤波器组的SAS方位向非均匀采样信号重构[J].声学技术,2011(4):354-358. |
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| 作者姓名： | 任强 江泽林 刘维 黄勇 刘纪元 |
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| 作者单位： | 中国科学院声学研究所;中国科学院研究生院; |
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| 基金项目： | “863”计划项目(2007AA091101) |
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| 摘 要： | 针对多子阵合成孔径声纳(Synthetic Aperture Sonar,SAS)在方位向上非均匀采样对后续成像处理带来的方位向失真的影响,给出了基于滤波器组的方位向非均匀采样信号重构算法.该算法利用SAS方位向周期性非均匀采样信号与经过分析滤波器组的信号之间的相似性,将周期非均匀采样信号通过合成滤波器组进行重构得到均...
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| 关 键 词： | 多子阵合成孔径声纳 方位多波束:非均匀采样 滤波器组:信号重构 |
| 收稿时间： | 2010/7/8 0:00:00 |
| 修稿时间： | 2010/11/1 0:00:00 |
Reconstruction of non-uniformly sampled signals of synthetic aperture sonar by synthetic filter bank |
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| REN Qiang,JIANG Ze-lin,LIU Wei,HUANG Yong and LIU Ji-yuan.Reconstruction of non-uniformly sampled signals of synthetic aperture sonar by synthetic filter bank[J].Technical Acoustics,2011(4):354-358. |
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| Authors: | REN Qiang JIANG Ze-lin LIU Wei HUANG Yong and LIU Ji-yuan |
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| Affiliation: | REN Qiang1,2,JIANG Ze-lin1,LIU Wei1,HUANG Yong1,LIU Ji-yuan1(1.Institute of Acoustics,Chinese Academy of Sciences,Beijing 100190,2.Graduate School of Chinese Academy of Sciences,Beijing 100039,China) |
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| Abstract: | Non-uniform azimuthal sampling of multiple receiver Synthetic Aperture Sonar(SAS) will cause distortion of the latter imaging in the azimuth direction.A method of using filter bank to reconstruct the non-uniform samples is given in this article.This method turns the non-uniform samples into the uniform samples by the synthetic filters in virtue of the similarity between the non-uniformly samples of SAS and the signals after a decomposing filter.Compared with the traditional time-region and frequency-region ... |
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| Keywords: | multiple receiver synthetic aperture sonar multiple azimuth beam non-uniform sampling filter banks signal reconstruction |
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