Results 121 to 130 of about 6,360 (179)
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Polarimetric SAR interferometry
IEEE Transactions on Geoscience and Remote Sensing, 1998The authors examine the role of polarimetry in synthetic aperture radar (SAR) interferometry. They first propose a general formulation for vector wave interferometry that includes conventional scalar interferometry as a special case. Then, they show how polarimetric basis transformations can be introduced into SAR interferometry and applied to form ...
S R Cloude
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Permanent scatterers in SAR interferometry
IEEE Transactions on Geoscience and Remote Sensing, 2001Differential SAR interferometry (DInSAR) is an unique tool for low-cost, large-coverage surface deformations monitoring. As well known, the technique involves interferometric phase comparison of SAR images gathered at different times and has the potential to provide millimetric accuracy.
A Ferretti, F Rocca
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X-SAR interferometry: first results
IEEE Transactions on Geoscience and Remote Sensing, 1995Repeat-pass interferometry data were acquired during the first and second SIR-C/X-SAR missions in April and October 1994. This paper presents the first results from X-SAR interferometry at four different sites. The temporal separations were one day and six months.
J Moreira, R Bamler, M Eineder
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SAR interferometry and statistical topography
IEEE Transactions on Geoscience and Remote Sensing, 2002The paper introduces a parametric model for the power spectrum density of synthetic aperture radar (SAR) interferograms. This model is derived by assuming the interferogram as a stationary frequency-modulated process and by exploiting the statistical description of earth topography provided by multifractal fields. Despite the small number of parameters
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Airborne polarimetric SAR interferometry
IGARSS '98. Sensing and Managing the Environment. 1998 IEEE International Geoscience and Remote Sensing. Symposium Proceedings. (Cat. No.98CH36174), 1998The authors show for first time the applicability of polarimetric interferometry techniques on high resolution interferometric scattering matrix airborne data. They point out the main requirements considering system hardware as well as data processing and calibration algorithms which are important for the polarimetric interferometric data evaluation ...
Papathanassiou, Konstantinos +5 more
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Despeckling of interferometrie SAR data
2016 International Conference on Systems, Signals and Image Processing (IWSSIP), 2016This paper presents speckle noise removal from synthetic aperture radar data. A novelty in this paper is removing of speckle noise using complex valued SAR data using optimal dual based l1 analysis approach. Paper presents complex valued computation of optimal dual frame l1 analysis using quasi Newton approach.
Dusan Gleich, Peter Planinsic
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The wavenumber shift in SAR interferometry
IEEE Transactions on Geoscience and Remote Sensing, 1994SAR surveys from separate passes show relative shifts of the ground wavenumber spectra that depend on the local slope and the off-nadir angle. The authors discuss the exploitation of this spectral shift for different applications: 1) generation of "low noise" interferograms benefiting phase unwrapping, 2) generation of quick-look interferograms, 3 ...
F. GATELLI +5 more
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Sar Interferometry And Its Applications
Surveys in Geophysics, 2000Satellite mounted Synthetic Aperture Radars (SAR) provide informationof the amplitude of the backscatterer its phase. This corresponds to the totaltravel time (source receiver and back), plus the phase of the scatterer itself.SAR interferometry yields the image of the differences of the phases takenin two successive passes.
FERRETTI, ALESSANDRO +3 more
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Ultra-wideband SAR interferometry
IEEE Transactions on Geoscience and Remote Sensing, 1998The authors introduce ultra-wideband synthetic aperture radar (SAR) interferometry as a new technique for topographic height retrieval. It is based on using a SAR system with large relative bandwidth that acquires data along two parallel tracks with a separation of the same order of magnitude as the flight altitude.
Lars M. H. Ulander, Per-Olov Frölind
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Multiresolution phase unwrapping for SAR interferometry
IEEE Transactions on Geoscience and Remote Sensing, 1999An approach to two-dimensional (2D) phase unwrapping for synthetic aperture radar (SAR) interferometry is presented, based on separate steps of coarse phase and fine phase estimation. A technique called adaptive multiresolution is introduced for local fringe frequency estimation, in which difference frequencies between resolution levels are estimated ...
Davidson, Gordon, Bamler, Richard
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