15 November 2007 Effects of currents and winds on shallow water bathymetry SAR images
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Proceedings Volume 6786, MIPPR 2007: Automatic Target Recognition and Image Analysis; and Multispectral Image Acquisition; 67865B (2007); doi: 10.1117/12.748066
Event: International Symposium on Multispectral Image Processing and Pattern Recognition, 2007, Wuhan, China
Abstract
Analytical expression of normalized radar backscattering cross-section (NRCS) contrasts for shallow water bathymetry SAR images has been firstly obtained by applying the continuity equation and the first order Bragg backscattering theory, and replacing the surface wave action balance equation with high frequency ocean wave spectrum balance equation. Based on the expression, we have simulated C band NRCS contrasts under different currents and sea surface winds firstly, results show the trend of NRCS contrasts' change with the shallow water bathymetry, and preferable currents and sea surface winds conditions for mapping shallow water bathymetry by SAR, which agree well with observations and shallow water bathymetry SAR images simulations. Moreover, the NRCS contrasts index which means the relationship between each currents and sea surface winds under given bathymetry parameters is first quantitatively calculated, which gives scientific proof for carrying SAR shallow water bathymetry surveys according to the ocean and weather conditions.
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Kaiguo Fan, Weigen Huang, Bin Fu, Mingxia He, "Effects of currents and winds on shallow water bathymetry SAR images", Proc. SPIE 6786, MIPPR 2007: Automatic Target Recognition and Image Analysis; and Multispectral Image Acquisition, 67865B (15 November 2007); doi: 10.1117/12.748066; https://doi.org/10.1117/12.748066
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KEYWORDS
Synthetic aperture radar

Backscatter

Device simulation

Modulation

Radar

Fluctuations and noise

Oceanography

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