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High altitude platform multichannel SAR for wide-area and staring imaging

机译：高空平台多通道SAR用于广域和凝视成像

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摘要

Wide-area (i.e., wide-swath, which means a large imaging swath in elevation) and staring (persistently remote observing) synthetic aperture radar (SAR) imaging is of great utility in microwave remote sensing; however, it cannot be efficiently achieved for current spaceborne and airborne single-antenna SAR systems due to the minimum antenna area constraint [1], [2]. Spaceborne SAR has an imaging capability with a wide area but with a limited azimuth resolution. In contrast, airborne SAR has an imaging capability with a high resolution but with limited swath coverage. Moreover, neither spaceborne nor airborne SARs provide staring imaging. There is therefore a clear incentive to increase the swath width and azimuth resolution simultaneously.
机译：广域（即宽范围，意味着高的成像带）和凝视（持续远程观察）合成孔径雷达（SAR）成像在微波遥感中具有很大的用途；但是，由于最小的天线面积限制[1]，[2]，对于当前的星载和机载单天线SAR系统无法有效实现。星载SAR具有大范围的成像能力，但方位角分辨率有限。相反，机载SAR具有高分辨率的成像能力，但覆盖范围有限。此外，无论是星载SAR还是机载SAR都无法提供凝视成像。因此，存在明显的动机来同时增加条带宽度和方位角分辨率。

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    Wang Wen-Qin; Shao Huaizong;

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    School of Communication and Information Engineering, University of Electronic Science and Technology of China, No. 2006, XiYuan DaDao, Hi-Tech District, Chengdu, Sichuan 611731, China|c|;

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