Results 11 to 20 of about 131 (85)

Assessment of underlying topography and forest height inversion based on TomoSAR methods

Geo-spatial Information Science
Due to the strong penetrability, long-wavelength synthetic aperture radar (SAR) can provide an opportunity to reconstruct the three-dimensional structure of the penetrable media. SAR tomography (TomoSAR) technology can resynthesize aperture perpendicular
Chuanjun Wu, Xinwei Yang, Yanghai Yu, Stefano Tebaldini, Lu Zhang, Mingsheng Liao   +5 more
doaj   +3 more sources

URBAN 3D RECONSTRUCTION OF VHR SAR IMAGES USING ITERATIVE OPTIMIZATION ALGORITHM AND LAYOVER FIXED-ORDER MODEL [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2023
Synthetic Aperture Radar (SAR) Tomography (TomoSAR) is a three-dimensional SAR imaging technique that uses multiple passes to process complex SAR images and obtain three-dimensional spatial scattering information to derive the elevation scattering ...
C. H. Zhang, L. Pang, D. Y. Liu
doaj   +1 more source

DIFFERENTIAL SAR TOMOGRAPHY OF LARGE-SCALE WATER CONSERVANCY PROJECTS UNDER STEEP TERRAIN – THE CASE STUDY OF LAXIWA HYDROPOWER STATION [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2023
Differential SAR Tomography (D-TomoSAR), as an extension of InSAR technology, combines D-InSAR and TomoSAR technology to achieve imaging in the height-deformation rate (s-v) plane.
L. Li, L. Pang, C. H. Li
doaj   +1 more source

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

Remote 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, Jiayi Guo, Yueting Zhang, Yuxin Hu, Chibiao Ding, Yirong Wu   +5 more
doaj   +1 more source

A novel TomoSAR imaging method with few observations based on nested array

IET Radar, Sonar &Navigation, Volume 17, Issue 6, Page 925-938, June 2023., 2023
A nested TomoSAR technique is proposed, which introduces the nested array into TomoSAR as the baseline configuration. In addition, a sparse 3D reconstruction algorithm is proposed based on the nested array which improves the imaging performance. Abstract Synthetic aperture radar tomography (TomoSAR) baseline optimization method is capable of reducing ...
Pengyu Jiang, Zhe Zhang, Bingchen Zhang, Zhongqiu Xu   +3 more
wiley   +1 more source

Building 3D reconstruction of TomoSAR using multiple bounce scattering model

Electronics Letters, Volume 58, Issue 12, Page 486-488, June 2022., 2022
Abstract Tomographic synthetic aperture radar (TomoSAR) plays a critical role in the 3D reconstruction of complex urban targets with the capability of 3D imaging. Nevertheless, multipath scattering interference is common in 3D point clouds, seriously affecting the structure of the 3D model.
Fubo Zhang, Yaqian Yang, Longyong Chen, Ling Yang   +3 more
wiley   +1 more source

Efficient 3D Image Reconstruction of Airborne TomoSAR Based on Back Projection and Improved Adaptive ISTA

IEEE Access, 2021
Airborne SAR tomography (TomoSAR) 3D image reconstruction can be realized with combination of 2D imaging algorithms and compressed sensing (CS) algorithms.
Dong Han, Liangjiang Zhou, Zekun Jiao, Bingnan Wang, Yachao Wang, Yirong Wu   +5 more
doaj   +1 more source

A Novel Downward‐Looking Linear Array SAR Imaging Method Based on Multiple Measurement Vector Model with L2,1‐Norm

Journal of Sensors, Volume 2021, Issue 1, 2021., 2021
Downward‐looking linear array synthetic aperture radar (DLLA SAR) is a kind of three‐dimensional (3‐D) radar imaging system. To obtain the superresolution along the crosstrack direction of DLLA SAR, the sparse regularization models with single measurement vector (SMV) have been widely applied. However, the robustness of the sparse regularization models
Le Kang, Tian-chi Sun, Jia-cheng Ni, Qun Zhang, Ying Luo, Biswajeet Pradhan   +5 more
wiley   +1 more source

BUILDING RECONSTRUCTION BASED ON A SMALL NUMBER OF TRACKS USING NONPARAMETRIC SAR TOMOGRAPHIC METHODS [PDF]

ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2023
Nowadays, the synthetic aperture radar (SAR) tomography (TomoSAR) technique plays a notable role in the 3D reconstruction of urban buildings through several SAR acquisitions with slightly different positions.
M. Omati, M. M. Omati, M. H. Bastani
doaj   +1 more source

Research on 4-D Imaging of Holographic SAR Differential Tomography

Remote Sensing, 2023
Holographic synthetic aperture radar tomography (HoloSAR) combines circular synthetic aperture radar (CSAR) and SAR tomography (TomoSAR) to enable a 360° azimuth observation of the considered scene.
Shuang Jin, Hui Bi, Jing Feng, Weihao Xu, Jin Xu, Jingjing Zhang   +5 more
doaj   +1 more source