Results 91 to 100 of about 2,045,084 (313)

A Review on SAR Imaging Techniques for Low RCS Targets

, 2022
: The method known as synthetic aperture radar (SAR) is utilized for creating high-resolution photographs stationary scenes. SAR is an imaging radar framed on a moving platform. In radar signal processing discovery of a weakly observable target is one of
Sagar Mohite, P.G. Chilveri, Sakshi Latthe, A. Arockia Bazil Raj, Nargis Akhter, Latish Tagde   +5 more
core   +1 more source

Coherent Absorption Reveals Colors Hidden in a Grey Fabry–Pérot Cavity

Advanced Optical Materials, EarlyView.
A dielectric thin film shows colors depending on its thickness; this effect can be used to encode information normally accessible through single‐beam spectroscopy. We developed a method to conceal this kind of information, based on coating the dielectric with a matched conductor, that suppresses the color‐bearing thin‐film resonances.
Giuseppe E. Lio, Giulio Carotta, Lorenzo Lavista, Andrea Camposeo, Giacomo Venturi, Agnese Guernieri, Alessandro Pitanti, Simon A. R. Horsley, Giuseppe C. La Rocca, Alessandro Tredicucci, Simone Zanotto   +10 more
wiley   +1 more source

Advances and prospects in SAR microwave vision three-dimensional imaging

National Science Open
Synthetic Aperture Radar three-dimensional (3D) imaging enables the acquisition of more comprehensive information, making it a recent hotspot in radar imaging.
Qiu Xiaolan, Jiao Zekun, Zhang Zhe, Yan Qiancheng, Ding Chibiao   +4 more
doaj   +1 more source

A multiprocessing framework for SAR image processing [PDF]

2007 IEEE International Geoscience and Remote Sensing Symposium, 2007
This paper introduces a framework developed for image processing of synthetic aperture radar (SAR) images. It encapsulates features of modern hardware architectures, including symmetric and asymmetric multiprocessing, within an easy and intuitive to use application programming interface (API).
Christian Andres, Torben Keil, Raik Herrmann, Rolf Scheiber   +3 more
openaire   +2 more sources

Under-Foliage Object Imaging Using SAR Tomography and Polarimetric Spectral Estimators [PDF]

, 2012
International audienceThis paper addresses the imaging of objects located under a forest cover using polarimetric synthetic aperture radar tomography (POLTOMSAR) at L-band.
Huang, Yue, Andreas Reigber, Ferro-Famil, Laurent, Yue Huang, Reigber, Andreas, Laurent Ferro-Famil   +5 more
core   +1 more source

Combating Inflammation and Promoting Anabolism in Osteoarthritic Cartilage Defect With an MMP13‐Sensing Dual‐Drug Scaffold

Advanced Science, EarlyView.
ABSTRACT Osteoarthritis (OA) is a widespread degenerative joint condition marked by progressive cartilage breakdown, and a chronic inflammatory microenvironment, where conventional therapies largely fail to halt disease progression. To address this unmet need, an intra‐articularly implantable, disease‐responsive scaffold was developed for combinatorial
Zhen Zhang, Bangheng Liu, Yulei Mu, Huiqun Zhou, Liang Ma, Chenjie Xu, Dong‐An Wang   +6 more
wiley   +1 more source

Extended Subaperture Imaging Method for Airborne Low Frequency Ultrawideband SAR Data

Sensors, 2019
The subaperture processing is one of the essential strategies for low frequency ultrawideband synthetic aperture radar (LF UWB SAR) imaging, especially for the real-time LF UWB SAR imaging because it can improve the parallelization of the imaging ...
Daoxiang An, Wu Wang, Leping Chen
doaj   +1 more source

Radargrammetric SAR Image Processing

, 2009
Throughout history, humans have tried to represent what they see through images. Mapmakers have always sought ways inwhich to represent both the location and the three dimensional shape of land. At the beginning, the way to obtain a 3D representation of land was to measure planimetry and height (as we can identify later by longitude, latitude and ...
Méric, Stéphane, Fayard, Franck, Pottier, Eric   +2 more
openaire   +3 more sources

Quality assessment of despeckled SAR images

2011 IEEE International Geoscience and Remote Sensing Symposium, 2011
In this paper, a novel method for the quality assessment of despeckled SAR images is proposed. This method is based on the observation that the perceived quality of despeckled SAR images is not always appropriately described by classical statistical and deterministic parameters that are proposed in the literature. Various evaluations are performed here.
DELLEPIANE, SILVANA, ANGIATI, ELENA
openaire   +7 more sources

Precipitation Induced Signatures in SAR Images [PDF]

, 2009
Active microwave SAR imaging of the Earth’s surface is commonly considered to be of all weather capability. However, as the operating frequencies of SAR-systems are increasing, visible image distortions due to heavy precipitation in SAR-images are ...
Chandra, Madhu, Danklmayer, Andreas
core