Results 11 to 20 of about 3,054,526 (166)

Geosynchronous synthetic aperture radar: design and applications [PDF]

open access: yes, 2009
Synthetic Aperture Radar (SAR) imaging from geosynchronous orbit has significant potential advantages over conventional low-Earth orbit (LEO) radars, but also challenges to overcome.
Bruno, Davide
core   +7 more sources

Mobile Multimedia Computing in Cyber-Physical Surveillance Services Through UAV-Borne Video-SAR: A Taxonomy of Intelligent Data Processing for IoMT-Enabled Radar Sensor Networks

open access: yesTsinghua Science and Technology, 2022
This study investigates the different aspects of multimedia computing in Video Synthetic Aperture Radar (Video-SAR) as a new mode of radar imaging for real-time remote sensing and surveillance.
Mohammad R. Khosravi, Sadegh Samadi
doaj   +1 more source

Architecture Exploration of a Backprojection Algorithm for Real-Time Video SAR

open access: yesSensors, 2021
This paper explores novel architectures for fast backprojection based video synthetic aperture radar (BP-VISAR) with multiple GPUs. The video SAR frame rate is analyzed for non-overlapped and overlapped aperture modes.
Seokwon Lee   +4 more
doaj   +1 more source

Generation of Multiple Frames for High Resolution Video SAR Based on Time Frequency Sub-Aperture Technique

open access: yesRemote Sensing, 2023
Video Synthetic Aperture Radar (ViSAR) operating in spotlight mode has received widespread attention in recent years because of its ability to form a sequence of SAR images for a region of interest (ROI). However, due to the heavy computational burden of
Congrui Yang   +5 more
doaj   +1 more source

Moving Target Shadow Analysis and Detection for ViSAR Imagery

open access: yesRemote Sensing, 2021
The video synthetic aperture radar (ViSAR) is a new application in radar techniques. ViSAR provides high- or moderate-resolution SAR images with a faster frame rate, which permits the detection of the dynamic changes in the interested area.
Zhihua He   +5 more
doaj   +1 more source

Change Detection using Synthetic Aperture Radar Videos

open access: yesComputer Science & Information Technology, 2020
Many researches have been carried out for change detection using temporal SAR images. In this paper an algorithm for change detection using SAR videos has been proposed. There are various challenges related to SAR videos such as high level of speckle noise, rotation of SAR image frames of the video around a particular axis due to the circular movement ...
Hasara Maithree   +2 more
openaire   +3 more sources

Synthetic aperture radar remote sensing for landfill monitoring [PDF]

open access: yes, 2007
Despite today’s intensive efforts directed at the recycling and recovery of solid wastes, the controlled disposal of refuse into land remains an important and necessary means of effective waste management.
Ottavianelli, Giuseppe
core   +7 more sources

Implementation Method of Automotive Video SAR (ViSAR) Based on Sub-Aperture Spectrum Fusion

open access: yesRemote Sensing, 2023
The automotive synthetic aperture radar (SAR) can obtain two-dimensional (2-D) high-resolution images and has good robustness compared with the other sensors.
Ping Guo   +4 more
doaj   +1 more source

Ground Moving Target Tracking and Refocusing Using Shadow in Video-SAR

open access: yesRemote Sensing, 2020
Stable and efficient ground moving target tracking and refocusing is a hard task in synthetic aperture radar (SAR) data processing. Since shadows in video-SAR indicate the actual positions of moving targets at different moments without any displacement ...
Xiaqing Yang   +6 more
doaj   +1 more source

Focusing Algorithms and Moving Target Detection Based on Video SAR

open access: yesLeida xuebao, 2020
Video Synthetic Aperture Radar (SAR) provides dynamic information about an observation scene in a video to the human eye, which can be very useful for the real-time detection of the ground maneuvering targets.
DING Jinshan
doaj   +1 more source

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