Articles with "wavenumber domain" as a keyword



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A Wavenumber-Domain Iterative Approach for Rapid 3-D Imaging of Gravity Anomalies and Gradients

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Published in 2019 at "IEEE Access"

DOI: 10.1109/access.2019.2904717

Abstract: We present a wavenumber-domain iterative approach for rapid 3-D imaging of gravity anomalies and gradients data, which is based on the 3-D mesh model with a flat observational surface. The approach deconvolves the spectra of… read more here.

Keywords: approach; wavenumber domain; gravity anomalies; anomalies gradients ... See more keywords
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Reconstruction of Dispersion Curves in the Frequency-Wavenumber Domain Using Compressed Sensing on a Random Array

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Published in 2017 at "IEEE Journal of Oceanic Engineering"

DOI: 10.1109/joe.2016.2644780

Abstract: In underwater acoustics, shallow-water environments act as modal dispersive waveguides when considering low-frequency sources, and propagation can be described by modal theory. In this context, propagated signals are composed of few modal components, each of… read more here.

Keywords: wavenumber domain; frequency wavenumber; curves frequency; wavenumber ... See more keywords
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Performance Analysis of Wavenumber Domain Algorithms for Highly Squinted SAR

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Published in 2023 at "IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing"

DOI: 10.1109/jstars.2023.3237552

Abstract: Wavenumber domain algorithms have unique advantages in processing highly squinted synthetic aperture radar data. This article studies the performance of three commonly used wavenumber domain algorithms including the classical wavenumber domain (CWD) algorithm, extended wavenumber… read more here.

Keywords: domain algorithms; wavenumber; analysis; wavenumber domain ... See more keywords
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Moving Target Refocusing Algorithm in 2-D Wavenumber Domain After BP Integral

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Published in 2018 at "IEEE Geoscience and Remote Sensing Letters"

DOI: 10.1109/lgrs.2017.2777494

Abstract: Focusing moving targets with frequency-domain algorithms may suffer from azimuth spectrum not entirely contained within a pulse-repetition frequency band, which may lead to degraded detection performance due to distributing the energy to the artifacts. In… read more here.

Keywords: moving target; refocusing algorithm; target refocusing; wavenumber domain ... See more keywords
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A Modified Equivalent Range Model and Wavenumber-Domain Imaging Approach for High-Resolution-High-Squint SAR With Curved Trajectory

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Published in 2017 at "IEEE Transactions on Geoscience and Remote Sensing"

DOI: 10.1109/tgrs.2017.2678763

Abstract: In a synthetic aperture radar (SAR) system, the radar platform may move with a curved trajectory due to the existence of vertical velocity and acceleration, which may result in the failure of the conventional imaging… read more here.

Keywords: wavenumber domain; range model; model; curved trajectory ... See more keywords
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Wavenumber-Domain Multiband Signal Fusion With Matrix-Pencil Approach for High-Resolution Imaging

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Published in 2018 at "IEEE Transactions on Geoscience and Remote Sensing"

DOI: 10.1109/tgrs.2018.2821001

Abstract: In this paper, a wavenumber-domain matrix-pencil-based multiband signal fusion approach was proposed for multiband microwave imaging. The approach proposed is based on the Born approximation of the field scattered from a target resulting in the… read more here.

Keywords: wavenumber domain; matrix pencil; approach; fusion ... See more keywords