| 一种基于频域子带合成的多发多收高分辨率SAR成像算法 |
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| 引用本文： | 邓云凯,陈倩,祁海明,郑慧芳,刘亚东. 一种基于频域子带合成的多发多收高分辨率SAR成像算法[J]. 电子与信息学报, 2011, 33(5): 1082-1087. DOI: 10.3724/SP.J.1146.2010.01067 |
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| 作者姓名： | 邓云凯 陈倩 祁海明 郑慧芳 刘亚东 |
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| 作者单位： | 中国科学院电子学研究所;中国空间技术研究院总体部; |
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| 摘 要： | 针对传统单通道SAR系统无法同时实现方位向高分辨率和大测绘带宽的不足,该文研究了一种基于多载频LFM波形的方位多孔径MIMO SAR系统,建立了相应的几何模型,详细推导了其回波表达式,并提出了一种基于频域子带合成的MIMO SAR高分辨率成像算法.该算法将方位向多普勒解模糊,改进的距离向频域子带合成和CS成像算法相结合...
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| 关 键 词： | 合成孔径雷达 多发多收 高分辨率宽测绘带 多普勒模糊 频域子带合成 |
A High-resolution Imaging Algorithm for MIMO SAR Based on the Sub-band Synthesis in Frequency Domain |
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| Deng Yun-kai,Chen Qian,Qi Hai-ming,Zheng Hui-fang,Lin Ya-dong. A High-resolution Imaging Algorithm for MIMO SAR Based on the Sub-band Synthesis in Frequency Domain[J]. Journal of Electronics & Information Technology, 2011, 33(5): 1082-1087. DOI: 10.3724/SP.J.1146.2010.01067 |
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| Authors: | Deng Yun-kai Chen Qian Qi Hai-ming Zheng Hui-fang Lin Ya-dong |
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| Abstract: | Considering the contradiction between the azimuth resolution and the swath width for the traditional SAR,a MIMO SAR system with multiple-carrier-frequency LFM waveform is researched.The corresponding geometrical model is built,and the expressions of the echo signals are derived in detail.A novel imaging algorithm based on the sub-band synthetic technology in frequency domain is proposed.This algorithm which integrates the removing of azimuth ambiguities,the synthesis of the sub-band and the CS imaging can r... |
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| Keywords: | SAR MIMO High Resolution Wide Swath(HRWS) Doppler ambiguities Sub-band synthetic technology in frequency domain |
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