2017
DOI: 10.3390/rs9060560
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Underwater Topography Detection in Coastal Areas Using Fully Polarimetric SAR Data

Abstract: Abstract:Fully polarimetric synthetic aperture radar (SAR) can provide detailed information on scattering mechanisms that could enable the target or structure to be identified. This paper presents a method to detect underwater topography in coastal areas using high resolution fully polarimetric SAR data, while less prior information is required. The method is based on the shoaling and refraction of long surface gravity waves as they propagate shoreward. First, the surface scattering component is obtained by po… Show more

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Cited by 12 publications
(3 citation statements)
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References 35 publications
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“…Mishra et al [111] evaluated the applicability of SAR data obtained from the RISAT-1 C-band commercial products to a coastal region near Mumbai, India, and the obtained results qualitatively agree with available bathymetric information. Bian et al [112] have developed a detection method based on swell patterns and the scattering mechanism using fully polarimetric SAR for the nearshore of Hainan Island, China. The comparison with navigational charts shows an average relative error of 9.73%, which improves the results obtained via single polarization SAR data.…”
Section: Synthetic Aperture Radar (Sar)mentioning
confidence: 99%
“…Mishra et al [111] evaluated the applicability of SAR data obtained from the RISAT-1 C-band commercial products to a coastal region near Mumbai, India, and the obtained results qualitatively agree with available bathymetric information. Bian et al [112] have developed a detection method based on swell patterns and the scattering mechanism using fully polarimetric SAR for the nearshore of Hainan Island, China. The comparison with navigational charts shows an average relative error of 9.73%, which improves the results obtained via single polarization SAR data.…”
Section: Synthetic Aperture Radar (Sar)mentioning
confidence: 99%
“…The FFT-based methods are the most common approaches for computing directional wave spectra and retrieving the water depth by solving the linear dispersion relation from SAR images [133], [179]. Moreover, swell patterns and the scattering mechanism have also been used for this purpose [180]. For example, Pereira et al [179] have explored the open-access Sentinel-1 SAR data to estimate nearshore bathymetry using the FFT.…”
Section: Bathymetrymentioning
confidence: 99%
“…The detection accuracy of the filtered fully polarized information is 8.41%. Bian [21] inverted the water depth of the sea near the Hainan Province based on the scattering mechanism method. Research shows that the method based on the scattering mechanism is more suitable for underwater topography detection than single-polarization SAR data.…”
Section: Introductionmentioning
confidence: 99%