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    SYNTHETIC APERTURE RADAR IMAGING APPARATUS AND METHODS
    16.
    发明公开
    SYNTHETIC APERTURE RADAR IMAGING APPARATUS AND METHODS 审中-公开

    公开(公告)号：EP3380864A1

    公开(公告)日：2018-10-03

    申请号：EP16869291.1

    申请日：2016-11-23

    申请人： Urthecast Corp.

    发明人： FOX, Peter Allen

    IPC分类号： G01S13/90 ,  G01S13/93

    CPC分类号： G01S13/90 ,  G01S7/003 ,  G01S13/765

    摘要： A synthetic aperture radar (SAR) is operable in an interrogation mode and in a self-imaging mode, the self-imaging mode entered in response to determining a response to interrogation pulses have been received from a ground terminal and position information specifying a ground location has been received from the ground terminal. A ground terminal is operable to receive interrogation pulses transmitted by a SAR, transmit responses, and transmit position information to cause the SAR to enter a self-imaging mode. The ground terminal receives first and subsequent pulses from the SAR where subsequent pulses include backscatter and are encoded. The ground terminal generates a range line by range compression.

    SYSTEMS AND METHODS FOR ENHANCING SYNTHETIC APERTURE RADAR IMAGERY
    17.
    发明公开
    SYSTEMS AND METHODS FOR ENHANCING SYNTHETIC APERTURE RADAR IMAGERY 审中-公开

    公开(公告)号：EP3311194A4

    公开(公告)日：2018-06-13

    申请号：EP16812363

    申请日：2016-06-15

    申请人： KING ABDULAZIZ CITY SCI & TECH ,  URTHECAST CORP

    发明人： BECKETT KEITH DENNIS RICHARD ,  TYC GEORGE

    IPC分类号： G01S13/90 ,  G01S13/86

    CPC分类号： G01S13/90 ,  B64G1/1021 ,  G01S13/867

    摘要： An image processing system generates enhanced synthetic aperture radar (SAR) imagery using a trainer that generates an information model that defines a set of trained data based on correlated classifications of pairs of spatially and/or temporally coincident SAR and optical images, and using a SAR image enhancer that applies a transformation to generate a color image from the SAR image data. Correlated classifications may be based on specific applications. The system may generate or update trained data to be used for classification based on a set of training SAR images and training optical images. The system may assess or determine correlations between the classified SAR and optical image data sets, establishing levels of confidence in such correlations.

    EFFICIENT PLANAR PHASED ARRAY ANTENNA ASSEMBLY
    18.
    发明公开
    EFFICIENT PLANAR PHASED ARRAY ANTENNA ASSEMBLY 审中-公开
    高效平面相控阵天线组件

    公开(公告)号：EP3311449A2

    公开(公告)日：2018-04-25

    申请号：EP16844829.8

    申请日：2016-06-15

    申请人： King Abdulaziz City for Science and Technology ,  Urthecast Corp.

    发明人： FOX, Peter Allen ,  BHATTACHARYA, Abhijit ,  CHEN, Ying ,  VAUGHAN, Rodney Grant

    IPC分类号： H01Q21/06 ,  H01Q1/38 ,  H01Q15/00 ,  H01Q1/24

    摘要： A planar phased array antenna assembly includes a first face sheet with a first plurality of radiating slots for a first frequency band and a second plurality of radiating slots for a second frequency band, a second face sheet, a third face sheet, and a structure interposed between the first and second face sheets with a third plurality of radiating elements at the first frequency band and a fourth plurality of radiating elements at the second frequency band, and a first feed network for the third plurality of radiating elements and a second feed network for the fourth plurality of radiating elements, and the second face sheet interposed between the structure and the third face sheet. The planar phased array antenna assembly may form part of a synthetic aperture radar (SAR) antenna.

    APPARATUS AND METHODS FOR QUAD-POLARIZED SYNTHETIC APERTURE RADAR
    19.
    发明公开
    APPARATUS AND METHODS FOR QUAD-POLARIZED SYNTHETIC APERTURE RADAR 审中-公开

    公开(公告)号：EP3177941A4

    公开(公告)日：2018-04-25

    申请号：EP15829734

    申请日：2015-08-05

    申请人： URTHECAST CORP

    发明人： FOX PETER ALLEN

    IPC分类号： G01S13/90 ,  G01S7/02 ,  G01S7/40 ,  G01S13/24

    CPC分类号： G01S7/025 ,  G01S7/026 ,  G01S7/4021 ,  G01S13/24 ,  G01S13/9035 ,  G01S2013/9076

    摘要： A quad-pol synthetic aperture radar (SAR) system reduces the effects of range ambiguities in a quad-pol SAR data. Pulses are transmitted in two sub-bands at respective ones of two different linear orientations. For each sub-band and orientation, returns are received in two orientations, and filtered to attenuate the other sub-band. A scattering matrix may be determined from the results. Additionally or alternatively, a Faraday rotation angle associated with acquired quad-pol SAR data is estimated, and used to correct a scatting matrix. Estimation may occur before, after, or both before and after acquisition of the quad-pol SAR data.

    APPARATUS AND METHODS FOR QUAD-POLARIZED SYNTHETIC APERTURE RADAR
    20.
    发明公开
    APPARATUS AND METHODS FOR QUAD-POLARIZED SYNTHETIC APERTURE RADAR 审中-公开
    用于四极合成孔径雷达的装置和方法

    公开(公告)号：EP3177941A1

    公开(公告)日：2017-06-14

    申请号：EP15829734.1

    申请日：2015-08-05

    申请人： Urthecast Corp.

    发明人： FOX, Peter Allen

    IPC分类号： G01S13/90

    CPC分类号： G01S7/025 ,  G01S7/026 ,  G01S7/4021 ,  G01S13/24 ,  G01S13/9035 ,  G01S2013/9076

    摘要： A quad-pol synthetic aperture radar (SAR) system reduces the effects of range ambiguities in a quad-pol SAR data. Pulses are transmitted in two sub-bands at respective ones of two different linear orientations. For each sub-band and orientation, returns are received in two orientations, and filtered to attenuate the other sub-band. A scattering matrix may be determined from the results. Additionally or alternatively, a Faraday rotation angle associated with acquired quad-pol SAR data is estimated, and used to correct a scatting matrix. Estimation may occur before, after, or both before and after acquisition of the quad-pol SAR data.

    摘要翻译： 四波长合成孔径雷达（SAR）系统减少了四波形SAR数据中距离模糊的影响。 脉冲以两个不同线性方向中的相应方向在两个子带中传输。 对于每个子带和方向，返回都在两个方向上接收，并进行滤波以衰减另一个子带。 散射矩阵可以从结果中确定。 另外地或可选地，估计与采集的四分量SAR数据相关联的法拉第旋转角度，并用于校正散射矩阵。 估计可能发生在采集quad-pol SAR数据之前，之后或之前和之后。