| 数字式波束形成在星载双基和多基SAR中的优越性 |
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| 引用本文： | 张直中. 数字式波束形成在星载双基和多基SAR中的优越性[J]. 电子工程师, 2007, 33(9): 1-2,9 |
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| 作者姓名： | 张直中 |
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| 作者单位： | 南京电子技术研究所,江苏省南京市,210013 |
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| 摘 要： | 在单一发收卫星SAR(合成孔径雷达)系统中,地面成像幅宽受天线长度限制,而载荷重量受发射条件的限制,发射大天线的SAR卫星是困难的.因此,将发和收分开成双基SAR,并在接收天线的高度上和/或方位上采用数字波束形成就有明显好处.若采用多接收卫星组合则单星SAR天线可做得很小,有利于降低成本.
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| 关 键 词： | 数字波束形成 星载双基SAR 星载多基SAR 多接收卫星SAR |
| 修稿时间： | 2007-04-17 |
Bistatic SAR and Multistatic SAR with Beamforming Technique |
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| ZHANG Zhizhong. Bistatic SAR and Multistatic SAR with Beamforming Technique[J]. Electronic Engineer, 2007, 33(9): 1-2,9 |
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| Authors: | ZHANG Zhizhong |
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| Affiliation: | Nanjing Research Institute of Electronics Technology, Nanjing 210013, China |
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| Abstract: | In a single spaceborne T/R SAR, the unambiguous swath width is limited by the antenna length. By seperating the T and R into two spaceborne SAR and using the technique of digital beamforming, the problem is solved. By using multistatic SAR, the antenna can be very small and much cheaper. |
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| Keywords: | digital beamforming T and R seperated two spaceborne SAR muhistatic SAR |
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