发明公开
- 专利标题: METHOD AND SYSTEM FOR CREATING INTERFEROMETRIC COHERENCE DATA PRODUCTS FOR OBJECTS
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申请号: EP21210799.9申请日: 2021-11-26
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公开(公告)号: EP4187281A1公开(公告)日: 2023-05-31
- 发明人: Voormansik, Kaupo , Tamm, Tanel , Zalite, Karlis , Veske, Mihkel
- 申请人: KappaZeta Oü
- 申请人地址: EE 51007 Tartu Herne 52-4
- 代理机构: Aaltonen, Janne Lari Antero
- 主分类号: G01S13/90
- IPC分类号: G01S13/90
摘要:
Disclosed is a method for creating interferometric coherence data products for objects imaged by Synthetic Aperture Radar (SAR) having polarization(s). The method comprises: for each identifiable object geometry for which there are acquired geocoded interferometric SAR images with flat-earth and topographic phase removed having following pixel values: backscatter intensity (V1) in polarization(s) for master image; backscatter intensity (V2) in polarization(s) for slave image; inphase component (V3) of geocoded interferogram in polarization(s); and quadratic-phase component (V4) of geocoded interferogram polarization(s), determining which geocoded pixels are within identifiable object geometry considering known geolocation accuracy of identifiable object geometry and geocoded interferometric SAR images; and determining coherence values and statistics of coherence values for objects for polarization(s), based on pixel values V1, V2, V3, and V4 within identifiable object geometry.
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