Results 31 to 40 of about 6,407 (152)

Airborne Downward Looking Sparse Linear Array 3-D SAR Heterogeneous Parallel Simulation

Remote Sensing, 2013
The airborne downward looking sparse linear array three dimensional synthetic aperture radar (DLSLA 3-D SAR) operates nadir observation with the along-track synthetic aperture formulated by platform movement and the cross-track synthetic aperture ...
Yirong Wu, Weixian Tan, Xueming Peng, Wen Hong, Yanping Wang   +4 more
doaj   +1 more source

Parametric Sparse SAR Imaging of Ground Moving Targets Integrated With Motion Compensation

IEEE Access, 2018
Using the array technique, the multi-channel synthetic aperture radar (SAR) has the capability of high-resolution imaging, detection, and location of the ground moving targets, which is a powerful tool during the remote sensing of smart city.
Gang Xu, Yanyang Liu, Jialian Sheng, Guobin Jing, Xin Lin, Junli Chen   +5 more
doaj   +1 more source

Joint Sparsity for TomoSAR Imaging in Urban Areas Using Building POI and TerraSAR-X Staring Spotlight Data

Sensors, 2021
Synthetic aperture radar (SAR) tomography (TomoSAR) can obtain 3D imaging models of observed urban areas and can also discriminate different scatters in an azimuth–range pixel unit.
Lei Pang, Yanfeng Gai, Tian Zhang
doaj   +1 more source

Joint space aspect reconstruction of wide-angle SAR exploiting sparsity [PDF]

, 2008
In this paper we present an algorithm for wide-angle synthetic aperture radar (SAR) image formation. Reconstruction of wide-angle SAR holds a promise of higher resolution and better information about a scene, but it also poses a number of challenges when
Cetin, Mujdat, Karl, W. Clem, Stojanovic, Ivana, Çetin, Müjdat   +3 more
core   +1 more source

Sparse SAR Imaging Method for Ground Moving Target via GMTSI-Net

Remote Sensing, 2022
Ground moving targets (GMT), due to the existence of velocity in range and azimuth direction, will lead to the deviation from their true position and defocus in the azimuth direction during the synthetic aperture radar (SAR) imaging process.
Luwei Chen, Jiacheng Ni, Ying Luo, Qifang He, Xiaofei Lu   +4 more
doaj   +1 more source

Comparison of Raw Data-Based and Complex Image-Based Sparse SAR Imaging Methods

Sensors, 2019
Sparse signal processing has already been introduced to synthetic aperture radar (SAR), which shows potential in improving imaging performance based on raw data or a complex image.
Zhilin Xu, Bingchen Zhang, Hui Bi, Chenyang Wu, Zhonghao Wei   +4 more
doaj   +1 more source

Frequency-Scaling-Based Spaceborne Squint SAR Sparse Imaging

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2022
In synthetic aperture radar (SAR), due to the characteristics of squint data in spaceborne imaging geometry, a more accurate range cell migration correction operation is necessary.
Yufan Song, Jingjing Zhang, Shuang Jin, Guoxu Li, Hui Bi   +4 more
doaj   +1 more source

Complex-Valued Sparse SAR-Image-Based Target Detection and Classification

Remote Sensing, 2022
It is known that synthetic aperture radar (SAR) images obtained by typical matched filtering (MF)-based algorithms always suffer from serious noise, sidelobes and clutter. However, the improvement in image quality means that the complexity of SAR systems
Chen Song, Jiarui Deng, Zehao Liu, Bingnan Wang, Yirong Wu, Hui Bi   +5 more
doaj   +1 more source

Advanced Synthetic Aperture Radar Based on Digital Beamforming and Waveform Diversity [PDF]

, 2008
This paper introduces innovative SAR system concepts for the acquisition of high resolution radar images with wide swath coverage from spaceborne platforms.
Gebert, Nicolas, Krieger, Gerhard, Moreira, Alberto, Younis, Marwan   +3 more
core   +1 more source

Synthetic Aperture Imaging With Intensity-Only Data. [PDF]

, 2020
We consider imaging the reflectivity of scatterers from intensity-only data recorded by a single moving transducer that both emits and receives signals, forming a synthetic aperture.
Moscoso, Miguel, Novikov, Alexei, Papanicolaou, George, Tsogka, Chrysoula   +3 more
core   +2 more sources