Results 91 to 100 of about 14,656 (310)

Digital Beamforming on Receive: Techniques and Optimization Strategies for High-Resolution Wide-Swath SAR Imaging [PDF]

, 2009
Synthetic Aperture Radar (SAR) is a well-proven imaging technique for remote sensing of the earth. However, conventional SAR systems are not capable to fulfill the increasing demands for im-proved spatial resolution and wider swath coverage.
Alberto Moreira, Moreira, Alberto, Nicolas Gebert, Gebert, Nicolas, Krieger, Gerhard, Gerhard Krieger   +5 more
core  

High-resolution optical and SAR image fusion for building database updating [PDF]

, 2011
This paper addresses the issue of cartographic database (DB) creation or updating using high-resolution synthetic aperture radar and optical images. In cartographic applications, objects of interest are mainly buildings and roads.
M. Spigai, V. Poulain, Spigai, Marc, Marthon, Philippe, J-Y Tourneret, P. Marthon, Tourneret, Jean-Yves, Poulain, Vincent, J. Inglada, Inglada, Jordi   +9 more
core   +1 more source

Side Chain Elimination Enables Low‐Cost Fused‐Ring Acceptors and Reveals a Compact Tetrameric Structure for High‐Photocurrent Organic Solar Cells

Advanced Science, EarlyView.
β‐side chain elimination enables cost‐effective fused‐ring acceptors, JSM5 and JSM6, with simplified synthesis. The observed compact tetrameric structures induced by S···N intermolecular interactions lead to 3D charge transport and enhance intermolecular connectivity, delivering high short‐circuit current density up to 28 mA cm−2, a step closer to the ...
Jinhui Zhao, Yi Wu, Witold M. Bloch, Caroline V. I. Andersson, Leandro R. Franco, Rafael B. Ribeiro, Chuangcheng Hong, Wei Zhang, Xun Pan, Joost Kimpel, Christian Müller, Zhicai He, Bin Zhang, Ergang Wang, Mats R. Andersson   +14 more
wiley   +1 more source

Fine-Resolution Spaceborne Radar Imaging of Space Targets With Parametric Second-Order Scaling and High-Order Spatial-Variant Phase Compensation

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Spaceborne radar imaging is the key means to obtain the fine-resolution radar image of space targets. However, the nonuniform relative rotational motion caused by the high-speed orbital state leads to the degradation of the radar imaging performance.
He Li, Rui Cao, Tianyuan Yang, Pingping Lu, Yijiang Nan, Robert Wang   +5 more
doaj   +1 more source

High Resolution Microwave Photonics Radar Real-time Imaging Based on Generalized Keystone and Frequency Scaling

Leida xuebao, 2019
Microwave photonic radars can transmit large bandwidth and high carrier frequency signals, which makes two-dimensional high-resolution Inverse Synthetic Aperture Radar (ISAR) imaging possible.
YANG Lichao, GAO Yuexin, XING Mengdao, SHENG Jialian   +3 more
doaj   +1 more source

Trap Depth Modulation and Antenna Effect of Organic Ligands for Enhancing Rare‐Earth Long Persistent Luminescence

Advanced Science, EarlyView.
Different from the current research trends that mainly focus on optimizing a single color system, a universal organic–inorganic hybrid strategy is proposed, aiming to synergistically enhance the luminescent properties of red, green, and blue multi‐color inorganic long‐persistent phosphorescent materials by trap depth modulation and antenna effect of ...
Ting Tan, Nian Li, Bangmin Liu, Hao Wang, Xia Huang, Yuanjin Chen, Zhonghao Wang, Chaolong Yang   +7 more
wiley   +1 more source

Ultra-Wide Swath SAR Imaging With Continuous PRF Variation [PDF]

, 2010
Innovative multi-channel synthetic aperture radar (SAR) concepts enable high-resolution wide-swath imaging, but the antenna length typically restricts the achievable swath width.
Gebert, Nicolas, Krieger, Gerhard
core  

Performance Boundaries and Tradeoffs in Super-Resolution Imaging Technologies for Space Targets

Remote Sensing
Inverse synthetic aperture radar (ISAR) super-resolution imaging technology is widely applied in space target imaging. However, the performance limits of super-resolution imaging algorithms remain largely unexplored.
Xiaole He, Ping Liu, Junling Wang
doaj   +1 more source

An Integrated DNA Nanoprobe for Intranuclear Imaging and in Situ Profiling of OGG1 Activity

Advanced Science, EarlyView.
The TP‐SA nanoprobe, integrating an AS1411 aptamer for nuclear delivery and a FRET array for signal amplification, enables real‐time tracking of nuclear OGG1 activity. It reveals cell‐line‐specific basal OGG1 levels and shows clinical promise using pneumonia patients’ lavage fluid.
Mingzhu Zhao, Xuemei Sun, He Li, Bangming Wang, Mengting Pan, Zhen Ma, Rong‐Mei Kong, Weiheng Kong, Yan Zhao, Fengli Qu   +9 more
wiley   +1 more source

Assessment of the potential of MERIS near-infrared water vapour products to correct ASAR interferometric measurements [PDF]

, 2006
Atmospheric water vapour is a major limitation for high precision Interferometric Synthetic Aperture Radar (InSAR) applications due to its significant impact on microwave signals.
Li, Z., Bennartz, R., Cross, P., Muller, J.P., Fischer, J., Albert, P.   +5 more
core   +1 more source