Results 21 to 30 of about 1,099 (177)

TOMOGRAPHIC SAR INVERSION FROM MIXED REPEAT- AND SINGLE-PASS DATA STACKS – THE TERRASAR-X/TANDEM-X CASE [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2012
This paper presents the first demonstration of high precision very high resolution tomographic SAR inversion with the assistance of TanDEM-X data. The data quality of TerraSAR-X and TanDEM-X is investigated.
X. X. Zhu   +3 more
doaj   +1 more source

Deriving Digital Surface Models from Geocoded SAR Images and Back-Projection Tomography

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2021
Digital surface models (DSMs) are sets of elevation data of the Earth's surface, useful for applications such as urban studies and height estimation of buildings.
Elias Mendez Dominguez   +2 more
doaj   +1 more source

Scanning Inside Volcanoes with Synthetic Aperture Radar Echography Tomographic Doppler Imaging

open access: yesRemote Sensing, 2022
A problem with synthetic aperture radars (SARs) is that due to the poor penetrating action of electromagnetic waves within solid bodies, the ability to see through distributed targets is precluded.
Filippo Biondi
doaj   +1 more source

A Deep-Learning Approach for SAR Tomographic Imaging of Forested Areas

open access: yesIEEE Geoscience and Remote Sensing Letters, 2023
Synthetic aperture radar tomographic imaging reconstructs the three-dimensional reflectivity of a scene from a set of coherent acquisitions performed in an interferometric configuration. In forest areas, a large number of elements backscatter the radar signal within each resolution cell.
Zoé Berenger   +4 more
openaire   +4 more sources

Realistic Lower Bound on Elevation Estimation for Tomographic SAR [PDF]

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2018
The noise in a tomographic synthetic aperture radar (Tomo-SAR) model is normally assumed to be independent and identically distributed (i.i.d.) Gaussian. In this paper, the correlated Tomo-SAR model is introduced by studying the effect of random residual phase and correlated additive Gaussian noise, and a realistic and general hybrid Cramér-Rao bound ...
Bo Yang 0040   +4 more
openaire   +2 more sources

Orbital Radar Sounding of Earth’s Ice Sheets: Opportunities and Challenges

open access: yesLeida xuebao, 2022
Owing to the enormous amount of frozen water and the particularity of heat exchange, polar ice sheets act as an important indicator and amplifier of global climate change.
Peng XIAO   +14 more
doaj   +1 more source

Focusing dynamic single‐channel synthetic aperture radar video with optical flow‐informed reconstruction

open access: yesElectronics Letters, 2022
The motion of targets is well known to result in their defocusing and displacement in SAR imagery, but detection of motion and re‐focusing of targets under generic conditions remains an ongoing interest.
F. M. Watson
doaj   +1 more source

UAVSAR Tomography for Vertical Profile Generation of Tropical Forest of Mondah National Park, Gabon

open access: yesEarth and Space Science, 2020
Polarimetric synthetic‐aperture radar (SAR) remote sensing has been widely used for structural and biophysical parameters retrieval of forest vegetation.
Udit Asopa, Shashi Kumar
doaj   +1 more source

Concealed Object Discrimination in Forested Areas Using PolTomoSAR with Various Baseline Configurations [PDF]

open access: yesISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
Detecting objects hidden beneath a forest cover with Synthetic Aperture Radar (SAR) is challenging due to strong vegetation scattering, canopy attenuation, and ground returns.
Y. El Bennioui   +3 more
doaj   +1 more source

γ-Net: Superresolving SAR Tomographic Inversion via Deep Learning [PDF]

open access: yesIEEE Transactions on Geoscience and Remote Sensing, 2022
Synthetic aperture radar tomography (TomoSAR) has been extensively employed in 3-D reconstruction in dense urban areas using high-resolution SAR acquisitions. Compressive sensing (CS)-based algorithms are generally considered as the state-of-the art in super-resolving TomoSAR, in particular in the single look case.
Kun Qian 0020   +3 more
openaire   +1 more source

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