Results 41 to 50 of about 61,185 (361)

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

Research on Configuration Constraints of Airborne Bistatic SARs

Sensors, 2022
Based on the analysis of the airborne bistatic synthetic aperture radar (SAR) imaging geometric mode, an extended nonlinear chirp scaling algorithm is employed to simulate and verify the imaging effect of the bistatic SARs.
Yidi Chen, Renwen Chen, Hao Liu, Jiapeng Guo, Yujie Wang, Junyi Zhang   +5 more
doaj   +1 more source

Unambiguous Imaging Method for GEO-LEO Bistatic SAR Based on Joint Sequential Multiframe and Multichannel Receiving Recovery

Leida xuebao, 2022
A geosynchronous (GEO) satellite can provide continuous illumination with broad beam coverage for a Low Earth Orbit (LEO) receiver, used as the transmitting station of bistatic Synthetic Aperture Radar (SAR).
Hongyang AN, Zhichao SUN, Chaodong WANG, Junjie WU, Jianyu YANG   +4 more
doaj   +1 more source

SAR Imaging of Fractal Surfaces [PDF]

IEEE Transactions on Geoscience and Remote Sensing, 2012
A complete theoretical model for synthetic aperture radar (SAR) imaging of natural surfaces is introduced in this paper. The topography of the natural scenes is described via models derived from fractal geometry; scattering evaluations are performed via fractal scattering models appropriate to the employed fractal scene description.
DI MARTINO, GERARDO, RICCIO, DANIELE, ZINNO, IVANA   +2 more
openaire   +2 more sources

First case of neurofibromatosis with posterior reversible encephalopathy syndrome showing spinal cord involvement

Indian Journal of Radiology and Imaging, 2018
Posterior reversible encephalopathy syndrome (PRES) is a well-documented pathology of the brain in systemic upsets. Majority of PRES cases present with edema in the cerebrum, most commonly in the territory of posterior circulation.
Pui Kwan Joyce Chan, Kin Sun Tse, Wing Shan Elaine Fok, Wai Lun Poon   +3 more
doaj   +1 more source

Staggered-SAR for High-Resolution Wide-Swath Imaging

, 2012
Synthetic aperture radar (SAR) is a remote sensing technique, capable of providing high resolution images independent of weather conditions and sunlight illumination.
Villano, Michelangelo, M. Villano, Moreira, Alberto, A. Moreira, G. Krieger, Krieger, Gerhard   +5 more
core   +1 more source

Spaceborne SAR Non-Along-Track Imaging Mode: Opportunities and Challenges

Leida xuebao, 2022
Spaceborne Synthetic Aperture Radar (SAR) can achieve various performance combinations of resolution and observation bandwidth by adjusting the working modes.
Yan WANG, Lihong KANG, Jie LIU, Hui KUANG, Hanwei SUN, Ke CHEN, Xuan WANG, Haifeng YU, Xilong SUN, Pengnan ZHENG, Shuhao LIU, Tianzhu YI, Lei LIU, Heli GAO, Bing SUN, Running ZHANG, Zegang DING   +16 more
doaj   +1 more source

Parallel processing of sliding spotlight mode SAR imaging based on GPU

The Journal of Engineering, 2019
Sliding spotlight synthetic aperture radar (SAR) is a hot imaging mode in space-borne SAR. It can acquire high-resolution and large azimuth scene size simultaneously.
Zixin Gao, Chunpeng Wei, Chen Yang, Yizhuang Xie, He Chen   +4 more
doaj   +1 more source

Ambiguity Suppression by Azimuth Phase Coding in Multichannel SAR Systems [PDF]

, 2011
The Azimuth Phase Coding (APC) technique, proposed to suppress range ambiguities in conventional SAR systems, stands out for its low implementation complexity and its effectiveness for point and distributed ambiguities.
Bordoni, Federica, Federica Bordoni, Younis, Marwan, Krieger, Gerhard, Marwan Younis, Gerhard Krieger   +5 more
core   +1 more source

Calibration of a polarimetric imaging SAR [PDF]

IEEE Transactions on Geoscience and Remote Sensing, 1992
Calibration using point targets is discussed. The fourport network calibration technique is used to describe the radar error model. The processor ambiguity function and the radar distortion matrices are combined to form a generalized polarimetric ambiguity function.
Kamal Sarabandi, Leland E. Pierce, Fawwaz T. Ulaby   +2 more
openaire   +1 more source