Results 131 to 140 of about 1,099 (177)
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Cross Sensor Simulation of Tomographic Sar Data
IGARSS 2018 - 2018 IEEE International Geoscience and Remote Sensing Symposium, 2018This paper describes a geometrically rigorous approach for generating a synthetic SAR Tomographic data-set starting from a real one acquired from a different geometry, using large pulse bandwidth and eventually a (slightly) different carrier frequency.
Mariotti D'Alessandro, M, Tebaldini, S.
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Efficient SAR Tomographic Inversion via Sparse Bayesian Learning
2021 IEEE International Geoscience and Remote Sensing Symposium IGARSS, 2021SAR tomographic inversion (TomoSAR) has been widely employed for 3-D urban mapping. Existing algorithms are mostly based on an explicit inversion of the SAR imaging model, which are often computationally expensive for large scale processing. This is especially true for compressive sensing-based TomoSAR algorithms. Previous literature showed perspective
Wang, Yuanyuan +2 more
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Comparative study of SAR tomographic reconstruction algorithms
2015 23rd Telecommunications Forum Telfor (TELFOR), 2015Synthetic Aperture Radar (SAR) tomography can reconstruct the elevation profile of each pixel based on a set of coregistered complex images of a scene. Its main advantage over classical interferometric methods consists in the capability to detect multiple target contributions within the same pixel.
Danisor, Cosmin +2 more
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A comparative study of tomographic SAR focusing methods
2015 European Radar Conference (EuRAD), 2015SAR tomography is a remote sensing technique, extending SAR interferometry, that allows three-dimensional imaging of volumetric targets. It allows, for example, to analyse the vertical structure of vegetation layers or other targets with significant penetration of the sensor's radiation (dry soil, ice layers, etc.). The ability to monitor the 3-D inner
Reigber, Andreas +4 more
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On the tomographic information in single pairs of crossing-orbits SAR acquisitions [PDF]
2012 IEEE International Geoscience and Remote Sensing Symposium, 2012 This paper discusses the tomographic potential of interferometric SAR acquisitions under crossing tracks, which results from the associated baseline variation. A simple model is proposed to describe the received signal. Experimental results confirm the expected tomographic potential.
Paco Lopez Dekker +2 more
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Construction and application of tomographic SAR system based on GB-SAR system
2014 IEEE Geoscience and Remote Sensing Symposium, 2014Synthetic Aperture Radar (SAR) provides high-resolution images regardless of weather conditions and solar illumination. However, a SAR image projects the 3D distributed targets onto a 2D plane in range and azimuth. Tomographic SAR (TomoSAR) is a technique to generate 3D image by adding the vertical baselines to the conventional SAR image acquisition ...
Younghun Ji, Hyangsun Han, Hoonyol Lee
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Building characterization using polarimetric tomographic SAR data
Joint Urban Remote Sensing Event 2013, 2013This paper describes the characterization of buildings using fully polarimetric tomographic SAR data at L-Band. This analysis is performed in three steps. Polarimetric tomographic data are first processed using the high resolution spectral estimator MUSIC (FP-MUSIC-1), assuming 1 scatterer. Then, points of interest are extracted using a novel signal-to-
Stéphane Guillaso +2 more
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A Method for Designing Orbits of Tomographic SAR Satellites
2022 3rd China International SAR Symposium (CISS), 2022Boxiang Zhang +5 more
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Experiments with Small UAS to Support SAR Tomographic Mission Formulation
2021 IEEE International Geoscience and Remote Sensing Symposium IGARSS, 2021The advent of smaller SAR satellites and cheaper access to space is bringing the notion of a multistatic SAR constellation into the realm of feasibility. Researchers at JPL are studying a Distributed Aperture Radar Tomographic Sensors (DARTS) mission concept intended to measure Earth's surface topography and vegetation using TomoSAR techniques.
Brian P. Hawkins +4 more
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Interferometric and Tomographic SAR
2009Undoubtedly, one of the more interesting applications of synthetic aperture radar imagery to emerge in the past two decades has been topographic mapping using interferometry. Because the phase angle of the backscattered signal for a given pixel is available, and phase is easily measured, it is possible to compare the phase differences of two different ...
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