Results 31 to 40 of about 3,174,120 (305)

Three-Dimensional Ground-Based SAR Imaging Algorithm Based on Keystone Formatting and Subblock

IEEE Access, 2020
Three-dimensional (3D) ground-based synthetic aperture radar (GB-SAR) draws attention because of the ability to obtain high accuracy 3D information of the monitoring terrain.
Weiming Tian, Wenyu Yang, Tongxin Dang, Zheng Zhao, Xiaoxin Han   +4 more
doaj   +1 more source

Elevation Spatial Variation Analysis and Compensation in GEO SAR Imaging

Remote Sensing, 2021
Due to geosynchronous synthetic aperture radar’s (GEO SAR) high orbit and low relative speed, the integration time reaches up to hundreds of seconds for a fine resolution.
Faguang Chang, Dexin Li, Zhen Dong, Yang Huang, Zhihua He, Xing Chen   +5 more
doaj   +1 more source

3D THz-TDS SAR Imaging by an Inverse Synthetic Cylindrical Aperture

IEEE Access, 2023
Terahertz time-domain spectroscopy (THz-TDS) is a promising tool for high-resolution 3D imaging of objects due to the high center frequency and bandwidth compared to microwave systems. In addition, terahertz waves have a higher penetration depth than visible or near-infrared radiation. Typically, optics are used to focus the terahertz radiation onto an
Dilyan Damyanov, Tobias Kubiczek, Kevin Kolpatzeck, Andreas Czylwik, Thorsten Schultze, Jan C. Balzer   +5 more
openaire   +3 more sources

Microwave Vision Three-dimensional SAR Experimental System and Full-polarimetric Data Processing Method

Leida xuebao
Three-Dimensional (3D) Synthetic Aperture Radar (SAR) holds great potential for applications in fields such as mapping and disaster management, making it an important research focus in SAR technology. To advance the application and development of 3D SAR,
Xiaolan QIU, Yitong LUO, Shujie SONG, Lingxiao PENG, Yao CHENG, Qiancheng YAN, Songtao SHANGGUAN, Zekun JIAO, Zhe ZHANG, Chibiao DING   +9 more
doaj   +1 more source

Three-dimensional Interferometric MIMO Radar Imaging for Target Scattering Diagnosis

Leida xuebao, 2018
Two-dimensional (2D) Synthetic Aperture Radar (SAR) and Inverse SAR (ISAR) imaging is of importance for diagnostic studies of target scattering mechanisms. Rail SAR and turntable ISAR are currently widely applied techniques for high resolution diagnostic
Xu Xiaojian, Liu Yongze
doaj   +1 more source

Digital Beamforming and MIMO SAR: Review and New Concepts [PDF]

, 2012
Spaceborne Synthetic Aperture Radar (SAR) is a unique tool for large scale Earth observation, but the current generation of SAR sensors suffers from some fundamental limitations with regard to their imaging and mapping capabilities.
Villano, Michelangelo, Patyuchenko, Anton, Laskowski, Piotr, Huber, Sigurd, Bordoni, Federica, Moreira, Alberto, Younis, Marwan, Krieger, Gerhard, Kim, Junghyo, Rommel, Tobias, Lopez-Dekker, Paco   +10 more
core  

From energy provision to protein synthesis: Tunnelling nanotubes as mediators of intercellular metabolic cooperation in cancer

FEBS Open Bio, EarlyView.
The cytoskeleton‐mediated transport of mitochondria via tunnelling nanotubes restores respiration, increases ATP production, rescues cells from apoptosis, activates the AKT/mTOR signalling pathway, promotes cell migration and invasiveness, contributes to cancer progression and treatment resistance.
Stanislava Martínková, Jan Trnka
wiley   +1 more source

A Time Domain Beamforming for SAR Tomography [PDF]

, 2006
Interest on 3D imaging in a remote sensing frame has grown in the recent years and it finds in SAR Tomography (TomSAR) a natural way to resolve for targets in the third dimension.
Nannini, Matteo, Scheiber, Rolf
core  

Modal Analysis of Light Propagation, Polarization and Diffraction by Cholesteric Liquid Crystal Layers

Advanced Functional Materials, EarlyView.
The analysis of optical eigenmodes in chiral liquid crystal with perpendicular or tilted helical axis, and their correspondence with the external medium, leads to an intuitive understanding of the angle and wavelength dependency of transmissive and reflective diffraction.
Ke Xu, Pouya Nosratkhah, Le Zhou, Shengzhu Yi, Giorgio Manzoni, Kristiaan Neyts   +5 more
wiley   +1 more source

Polarimetric calibration strategy for long-duration imaging with a ground-based SAR [PDF]

, 2005
The Ground-Based Synthetic Aperture Radar (GB-SAR) facility in the UK provides high-resolution, fully polarimetrically calibrated L- through X-band SAR imagery, principally of targets of remote sensing interest such as soils and vegetation.
Morrison, Keith, Cookmartin, Geoff, J C Bennett, Bennett, J. C., Race, A., Quegan, Shaun, K. Morrison, A. Race, G. Cookmartin, S. Quegan   +9 more
core   +1 more source