Results 41 to 50 of about 1,079 (177)

A Note on Visual Semantics in SAR 3D Imaging

open access: yesLeida xuebao, 2022
Conceptually speaking, Synthetic Aperture Radar (SAR) microwave vision 3D imaging refers to fusing visual semantics into the SAR 3D imaging process to enhance the 3D imaging quality.
Zhanyi HU
doaj   +1 more source

Underlying topography and forest height estimation from SAR tomography based on a nonparametric spectrum estimation method with low sidelobes

open access: yesInternational Journal of Digital Earth, 2022
The underlying topography and forest height play an indispensable role in many fields, including geomorphology, civil engineering construction, forest investigation, and the modeling of natural disasters. As a new microwave remote sensing technology with
Youjun Wang   +6 more
doaj   +1 more source

L1 Minimization with Perturbation for Off-grid Tomographic SAR Imaging

open access: yesLeida xuebao, 2022
Synthetic Aperture Radar (SAR) Tomography (TomoSAR) is a novel technique that enables three-Dimensional (3-D) imaging using multi-baseline two-Dimensional (2-D) data.
Bang DU   +4 more
doaj   +1 more source

Pol-Insar Forest Height Inversion Using Tomosar Reflectivity Profiles

open access: yes2021 IEEE International Geoscience and Remote Sensing Symposium IGARSS, 2021
The realistic parameterization of the underlying (vertical) radar reflectivity profile is critical for a model-based inversion of forest height from polarimetric interferometric (Pol-InSAR) data. Indeed, an appropriate parameterization not only affects the final estimation performance, but also enables the inversion from a reduced observation space in ...
Guliaev, Roman   +3 more
openaire   +2 more sources

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

open access: yesEarth and Space Science, Volume 7, Issue 10, October 2020., 2020
Abstract Polarimetric synthetic‐aperture radar (SAR) remote sensing has been widely used for structural and biophysical parameters retrieval of forest vegetation. It has been found that the combination of polarimetric properties and interferometric characteristics of SAR remote sensing provides the capacity to retrieve forest height.
Udit Asopa, Shashi Kumar
wiley   +1 more source

Urban Area Tomography Using a Sparse Representation Based Two-Dimensional Spectral Analysis Technique

open access: yesRemote Sensing, 2018
Synthetic aperture radar (SAR) tomography (TomoSAR) estimates scene reflectivity along elevation coordinates, based on multi-baseline measurements. Common TomoSAR approaches are based on every single range-azimuth cell or the cell’s neighborhood.
Lei Liang   +5 more
doaj   +1 more source

Forest Aboveground Biomass Estimation Using Multi-Features Extracted by Fitting Vertical Backscattered Power Profile of Tomographic SAR

open access: yesRemote Sensing, 2021
Forest aboveground biomass (AGB), which plays an important role in the study of global carbon cycle, is one of the most important indicators in forest resource monitoring.
Xiangxing Wan   +5 more
doaj   +1 more source

TomoSAR 3D Reconstruction for Buildings Using Very Few Tracks of Observation: A Conditional Generative Adversarial Network Approach

open access: yesRemote Sensing, 2021
SAR tomography (TomoSAR) is an important technology for three-dimensional (3D) reconstruction of buildings through multiple coherent SAR images. In order to obtain sufficient signal-to-noise ratio (SNR), typical TomoSAR applications often require dozens ...
Shihong Wang   +5 more
doaj   +1 more source

Elevation Extraction from Spaceborne SAR Tomography Using Multi-Baseline COSMO-SkyMed SAR Data

open access: yesRemote Sensing, 2022
SAR tomography (TomoSAR) extends SAR interferometry (InSAR) to image a complex 3D scene with multiple scatterers within the same SAR cell. The phase calibration method and the super-resolution reconstruction method play a crucial role in 3D TomoSAR ...
Lang Feng   +4 more
doaj   +1 more source

Three-dimensional forest structure features extraction based on TomoSAR [PDF]

open access: diamondThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
. Forest structure is an important indicator for evaluating forest ecosystem and an indispensable input parameter for estimating forest carbon sink. Synthetic Aperture Radar (SAR) Tomography (TomoSAR), as a novel microwave remote sensing technique with ...
Zhentao Hu   +4 more
openalex   +2 more sources

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