SAR Interferogram Filtering of Shearlet Domain Based on Interferometric Phase Statistics
نویسندگان
چکیده
منابع مشابه
SAR Interferogram Filtering of Shearlet Domain Based on Interferometric Phase Statistics
This paper presents a new filtering approach for Synthetic Aperture Radar (SAR) interferometric phase noise reduction in the shearlet domain, depending on the coherent statistical characteristics. Shearlets provide a multidirectional and multiscale decomposition that have advantages over wavelet filtering methods when dealing with noisy phase fringes. Phase noise in SAR interferograms is direct...
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We propose the use of the Von Mises distribution for circular data to model interferometric phase images. Based on the kappa parameter of the Von Mises distribution a locally adaptive phase filter is developed. A two-sided confidence interval on the kappa values is constructed, and only phase measurements where kappa values fall inside this interval are input to the filter We additionally put m...
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The application of SAR Interferometry (InSAR) especially in Digital Elevation Modeling as well as deformation monitoring encounters problems due to noise in the interferogram phase. The noise is mainly caused by temporal and baseline decorrelation as well as changes in atmospheric conditions that makes the process of phase reconstruction difficult and reduces the accuracy. The quality of digita...
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1 MARTiN-NEIRA, M., and GOUTOULE, J.M.: 'MIUS a two-dimensional aperture-synthesis radiometer for soil-moisture and ocean salinity observations', ESA Bull., 1997, (92), pp. 95-104 2 SIVESTRIN, p., BERGER, M., E R R , Y., and FONT, J.: 'ESA's Second Earth Explorer Opportunity Mission: The Soil Moisture and Ocean Salinity Mission SMOS', IEEE Geosci. Remote Sens. Newsl., 2001, (1 18), pp. 11-14 CA...
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This paper presents a new efficient algorithm of filtering and unwrapping phase images for interferometric synthetic aperture radar (InSAR) based on nonlinear phase model. First, we analyzed the statistical and signal properties of interferometric phase, and proposed the concept of nonlinear phase model. The model of reflecting topographic contour is used to approximate the interferometric phas...
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ژورنال
عنوان ژورنال: Applied Sciences
سال: 2017
ISSN: 2076-3417
DOI: 10.3390/app7020141