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Multiple Beams Spaceborne SAR Imaging

机译:多光束星载SAR成像

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摘要

High azimuth resolution and wide swath coverage pose contradicting requirements in conventional spaceborne synthetic aperture radar (SAR) systems. In order to overcome these inherent limitations, the technique of displaced phase centers multiple azimuth beams (MAB) has been proposed in recent years. The principle of MAB SAR is discussed here and then the problems related with this mode, such as the differential path error and nonuniform sampling error, are analyzed when the Earth rotation is considered. The corresponding solutions to these problems are presented.
机译:高方位角分辨率和宽幅覆盖范围构成了常规星载合成孔径雷达(SAR)系统中的要求。为了克服这些固有的局限性,近年来已经提出了位移相位中心多方位波束(MAB)的技术。这里讨论了MAB SAR的原理,然后在考虑地球自转时分析了与该模式有关的问题,例如差分路径误差和非均匀采样误差。提出了针对这些问题的相应解决方案。

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