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    • 27. 发明申请
    • High-Resolution Stripmap SAR Imaging
    • 高分辨率条形图SAR成像
    • US20160109570A1
    • 2016-04-21
    • US14766211
    • 2014-02-08
    • THALES ALENIA SPACE ITALIA S.P.A. CON UNICO SOCIO
    • Diego Calabrese
    • G01S13/90
    • G01S13/9035G01S13/90G01S2013/9041G06T1/0007G06T7/60G06T2207/10044G06T2207/30181
    • A SAR imaging method performs N SAR acquisitions in stripmap mode of the earth's surface using a synthetic aperture radar transported by an aerial or satellite platform and including a single, non-partitioned antenna and a single receiver coupled thereto. All N SAR acquisitions are performed using the same predetermined elevation angle relative to the nadir of the synthetic aperture radar and using a respective squint angle relative to the flight direction of the synthetic aperture radar. Radar transmission and reception operations are time interleaved with other N-1 SAR acquisitions, resulting in the respective acquisition directions being parallel to each other and not parallel to acquisition directions of other N-1 SAR acquisitions. Radar beams in two immediately successive time instants and related to two different SAR acquisitions are contiguous along the azimuth. SAR images may be generated using all the N SAR acquisitions having an enhanced azimuth resolution.
    • SAR成像方法使用由天线或卫星平台传输的合成孔径雷达,并且包括单个未分配的天线和与其耦合的单个接收机,在地球表面的带状地图模式中执行N SAR采集。 使用与合成孔径雷达的最低点相同的预定仰角并且使用相对于合成孔径雷达的飞行方向的相应斜视角来执行所有N个SAR采集。 雷达发射和接收操作与其他N-1 SAR采集进行时间交织,导致相应的采集方向相互并行,并不与其他N-1 SAR采集的采集方向平行。 雷达光束在两个紧随连续的时刻相关并且与两个不同的SAR采集相关,沿着方位角是连续的。 可以使用具有增强的方位分辨率的所有N SAR采集来生成SAR图像。