Results 31 to 40 of about 2,185,953 (100)

Resolution Equation for SAR Systems Synthesizing Circular Aperture

IEEE Access
The resolution of a synthetic aperture radar (SAR) system depends not only on the operating frequency range of a radar but also on the geometry. A radar system operating at MHz frequencies facilitates SAR resolution to the meter (m) level with a linear ...
Viet T. Vu, Yevhen Ivanenko, Vanja Lindberg, Mats I. Pettersson   +3 more
doaj   +1 more source

Statistical Models of Speckle for Circular SAR Imaging

Leida xuebao, 2015
Circular Synthetic Aperture Radar (CSAR) is a recently developed all-directional high-resolution imaging mode, which is efficient in dealing with the target recognition, area monitoring, and three-dimensional reconstruction because of the acquisition of ...
Guo Xiao-yang, Li Yang, Lin Yun, Guo Sheng-long, Hong Wen   +4 more
doaj   +1 more source

Analysis of Azimuthal Variations Using Multi-Aperture Polarimetric Entropy with Circular SAR Images

Remote Sensing, 2018
In conventional synthetic aperture radar (SAR), sensors with a fixed look angle are assumed, and the scattering properties are considered as invariant in the azimuth.
Feiteng Xue, Yun Lin, Wen Hong, Qiang Yin, Bingchen Zhang, Wenjie Shen, Yue Zhao   +6 more
doaj   +1 more source

High Precision Antenna Characterisation for Broadband Synthetic Aperture Radar Processing [PDF]

, 2014
The airborne F-SAR sensor\cite{fsar}, developed and operated by the DLR-HR institute, acquires very high resolution, fully polarimetric synthetic aperture radar (SAR) data in multiple frequency bands in addition to providing a number of ...
Bernd Gabler, Gabler, Bernd, Jäger, Marc, Andreas Reigber, Reigber, Andreas, Marc Jager   +5 more
core   +1 more source

A Novel 3D Point Cloud Reconstruction Method for Single-Pass Circular SAR Based on Inverse Mapping with Target Contour Constraints

Remote Sensing
Circular synthetic aperture radar (CSAR) is an advanced imaging mechanism with three-dimensional (3D) imaging capability, enabling the acquisition of omnidirectional scattering information for observation regions.
Qiming Zhang, Jinping Sun, Fei Teng, Yun Lin, Wen Hong   +4 more
doaj   +1 more source

An Improved H/ $\alpha$ Unsupervised Classification Method for Circular PolSAR Images

IEEE Access, 2018
In conventional polarimetric synthetic aperture radar, targets are usually assumed isotropic, and potential polarimetric variations in azimuth are ignored.
Feiteng Xue, Yun Lin, Wen Hong, Shiqiang Chen, Wenjie Shen   +4 more
doaj   +1 more source

3D Point Cloud Reconstruction Using Inversely Mapping and Voting from Single Pass CSAR Images

Remote Sensing, 2021
3D reconstruction has raised much interest in the field of CSAR. However, three dimensional imaging results with single pass CSAR data reveals that the 3D resolution of the system is poor for anisotropic scatterers.
Shanshan Feng, Yun Lin, Yanping Wang, Fei Teng, Wen Hong   +4 more
doaj   +1 more source

Smart Multi-Aperture Radar Techniques for Spaceborne Remote Sensing [PDF]

, 2008
Data compression is crucial for modern synthetic aperture radar systems where high resolution or large coverage may result in huge amounts of raw data.
Bordoni, Federica, Federica Bordoni, Nicolas Gebert, Younis, Marwan, Gebert, Nicolas, Krieger, Gerhard, Marwan Younis, Gerhard Krieger   +7 more
core   +1 more source

Development of a MIMO Radar System Demonstrator - Calibration and Demonstration of First Results [PDF]

, 2012
The success of current spaceborne Synthetic Aperture Radar (SAR) is boosting the performance requirements of next generation systems. In order to cope with the evolution of SAR the design of the new systems will need to meet higher requirements for ...
A. Patyuchenko, Patyuchenko, Anton, Laskowski, Piotr, T. Rommel, Younis, Marwan, G. Krieger, Krieger, Gerhard, M. Younis, Rommel, Tobias, P. Laskowski   +9 more
core   +1 more source

Experimental Performance Investigation of Digital Beamforming on Synthetic Aperture Radar [PDF]

, 2008
In this paper, we present the experimental results of a Digital Beam Forming (DBF) Synthetic Aperture Radar (SAR) performance on the purpose of the High- Resolution Wide-Swath (HRWS) SAR concept.
Junghyo Kim, Younis, Marwan, Wiesbeck, Werner, Werner Wiesbeck, Kim, Junghyo, Marwan Younis   +5 more
core   +1 more source