Results 31 to 40 of about 14,656 (310)
Imaging method based on compressed sensing for the cognitive sparse aperture of ISAR
Tongxin xuebao, 2012 Focused on the problem that different ISAR targets required different measurement dimension and different imaging time when they were imaging with compressed sensing(CS)theory,a cognitive high-resolution imaging method based on CS was proposed.According ...
Feng-lian SUN +4 more
doaj +2 more sources
Fast Target Localization Method for FMCW MIMO Radar via VDSR Neural Network
Remote Sensing, 2021 The traditional frequency-modulated continuous wave (FMCW) multiple-input multiple-output (MIMO) radar two-dimensional (2D) super-resolution (SR) estimation algorithm for target localization has high computational complexity, which runs counter to the ...
Jingyu Cong +4 more
doaj +1 more source
Multidimensional Radar Waveforms: A New Paradigm for the Design and Operation of Highly Performant Spaceborne Synthetic Aperture Radar Systems [PDF]
, 2007 This paper introduces and analyses the innovative paradigm of multidimensional waveform encoding for spaceborne synthetic aperture radar (SAR). The combination of this technique with digital beamforming on receive enables a new class of highly ...
Alberto Moreira +5 more
core +1 more source
Task Scheduling for Multi-Target ISAR Imaging in Radar Network
IEEE Access, 2020 For radar imaging of multiple targets in radar network, it is necessary to schedule the imaging tasks among various radars at suitable time to achieve high performance under limited radar resources.
Dan Wang +4 more
doaj +1 more source
High‐resolution inverse synthetic aperture radar imaging of satellites in space
IET Radar, Sonar & NavigationIn view of the increasing number of space objects, comprehensive high‐quality space surveillance becomes ever more important. Radar is a powerful tool that, in addition to detection and tracking of objects, also enables spatially high‐resolution imaging ...
Simon Anger +4 more
doaj +1 more source
Advanced Functional Materials, EarlyView.Monolithic UV‐ozone oxidation of Ta forms an ultrathin Ta2O5/TaOx bilayer enabling resistive switching with a vertical defect gradient. A stoichiometric surface layer over an oxygen‐deficient sublayer promotes localized filament nucleation near the top interface, enabling low‐voltage operation, and reduced cycle‐to‐cycle variability.
Seunghoon Yang +11 more
wiley +1 more source
Multi-Channel ScanSAR for High-Resolution Ultra-Wide-Swath Imaging [PDF]
, 2008 Multi-channel radar systems enable to overcome the inherent limitation of conventional synthetic aperture radar (SAR). An example is the combination of digital beamforming on receive in elevation with multi-aperture SAR signal reconstruction in azimuth ...
Moreira, Alberto +2 more
core
Advanced Synthetic Aperture Radar Based on Digital Beamforming and Waveform Diversity [PDF]
, 2008 This paper introduces innovative SAR system concepts for the acquisition of high resolution radar images with wide swath coverage from spaceborne platforms.
Alberto Moreira +7 more
core +1 more source
Compressed Sensing for THz FMCW Radar 3D Imaging
Complexity, 2021 A terahertz (THz) frequency-modulated continuous wave (FMCW) imaging radar system is developed for high-resolution 3D imaging recently. Aiming at the problems of long data acquisition periods and large sample sizes for the developed imaging system, an ...
Shanshan Gu +6 more
doaj +1 more source
Joint Compressed Sensing and Spread Spectrum Through-the-Wall Radar Imaging
IEEE Access, 2021 High-resolution radar imaging has to be accomplished within the constraints of aperture size, frequency, and acquisition time. To achieve effective and reliable imaging, we introduce a compressed sensing (CS) technology to spread spectrum through-the ...
Minchao Li +3 more
doaj +1 more source