Results 61 to 70 of about 1,079 (177)
Sparse Scenario Imaging for Active Radar in the Forward‐Looking Direction
Mathematical Problems in Engineering, Volume 2014, Issue 1, 2014., 2014 The resolution of multiple targets at the same range cell but different angles in the forward‐looking direction is of great trouble for active radar. Based on compressive sensing (CS) framework, a sparse scenario imaging approach using joint angle‐Doppler representation basis is proposed, which employs multisensor and single‐receiver channel hardware ...
Jun Wang +4 more
wiley +1 more source
Demonstration of Spaceborne Multi-static SAR Tomography and Forest Height Estimation
Leida xuebaoSynthetic Aperture Radar Tomography (TomoSAR), by virtue of its three-dimensional (3D) resolution capability, can be used to study the 3D structure of semitransparent targets, such as forests, icebergs, and snowpacks.
Guobing ZENG +4 more
doaj +1 more source
Geo-spatial Information ScienceSynthetic Aperture Radar (SAR) Tomography (TomoSAR) is an active microwave-based three-dimensional (3D) imaging technique that can provide large-scale, penetrative, high-resolution, all-time, and all-weather observations, making it essential for ...
Xin Zhao +5 more
doaj +1 more source
Tomographic SAR imaging via generative adversarial neural network with cascaded U‐Net architecture
Electronics Letters, Volume 60, Issue 17, September 2024.This paper proposes a novel method based on deep learning, which is carried out and optimized in an end‐to‐end manner by the generative adversarial neural networks. The proposed method applies the cascaded U‐Net architectures to achieve the reconstruction of full‐channel synthetic aperture radar images and the refinement of obtained tomographic results,
Jie Li +4 more
wiley +1 more source
Facade Reconstruction Using Multiview Spaceborne TomoSAR Point Clouds [PDF]
IEEE Transactions on Geoscience and Remote Sensing, 2014 Recent advances in very high resolution tomographic synthetic aperture radar inversion (TomoSAR) using multiple data stacks from different viewing angles enables us to generate 4-D (space-time) point clouds of the illuminated area from space with a point density comparable to LiDAR. They can be potentially used for facade reconstruction and deformation
Zhu, Xiao Xiang, Shahzad, Muhammad
openaire +2 more sources
Structural Control and Health Monitoring, Volume 2024, Issue 1, 2024.This paper presents an early warning system to investigate deformations in simply supported concrete girder bridges over time, using the information content provided by satellite data, integrated with other available sources. The safety of the existing bridges is a priority for transportation management companies, which should carry out continuous and ...
Mirko Calò +4 more
wiley +1 more source
Enhanced 3-D Reconstruction Method for Polarimetric Coherent Optimal-Based Tomographic SAR
IEEE Journal of Selected Topics in Applied Earth Observations and Remote SensingTomographic synthetic aperture radar (TomoSAR) technology has become one of the important means to obtain 3-D information of urban buildings. With the continuous development of SAR technology, TomoSAR also has full-polarization reception capabilities ...
Shuhang Dong +4 more
doaj +1 more source
Spatial Shift Phenomenon Compensation for TomoSAR Imaging Using High-Resolution TerraSAR-X Data
IEEE Access, 2021 Massive high-resolution spaceborne synthetic aperture radar (SAR) data are available nowadays, effecting rapid development in the urban remote sensing technology.
Hui Liu +6 more
doaj +1 more source
EVALUATION OF AIRBORNE L- BAND MULTI-BASELINE POL-INSAR FOR DEM EXTRACTION BENEATH FOREST CANOPY [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2018 DEM beneath forest canopy is difficult to extract with optical stereo pairs, InSAR and Pol-InSAR techniques. Tomographic SAR (TomoSAR) based on different penetration and view angles could reflect vertical structure and ground structure.
W. M. Li +4 more
doaj +1 more source
IEEE Journal of Selected Topics in Applied Earth Observations and Remote SensingConventional tomographic SAR (TomoSAR) elevation processing assumes that the wavefronts from different radar apertures are approximately parallel within the observation range, meaning that all targets in space with the same slant range overlap on the ...
Changhao Liu +3 more
doaj +1 more source