Correlation Analysis of Underwater Bottom Topography and Its SAR Images
Jungang Yang(1) , Jie Zhang(1) , and JunMin Meng(1)
First Institute of Oceanography, S.O.A,
No.6, XianXiaLing Road, Hi-tech,
Process of underwater bottom topography (water depth) being imaged by SAR includes some complicated interaction processes. It is known that SAR images of the same underwater bottom topography obtained in different times are different through SAR imaging mechanism of underwater bottom topography. SAR image of underwater bottom topography is correlative to tidal current in SAR imaging time. Several scenes of ERS SAR images and in situ measurement water depth of three profiles of TaiWan Shoal were used to analyze correlation of underwater bottom topography and its SAR images obtained in different times. Influences of magnitude and direction of tidal current to SAR images were learned by correlation analysis. Qualitative relation between underwater bottom topography and its SAR images was established by correlation analysis.