Results 71 to 80 of about 3,417,405 (292)
Design of a Three-Channel Common-Aperture Optical System Based on Modular Layout
PhotonicsMulti-channel common-aperture optical systems, which excel at simultaneous multi-spectral information acquisition, are widely used for image fusion. However, complex systems for long-distance multi-band detection suffer from difficulties in assembly and ...
Lingling Wu +6 more
doaj +1 more source
Performance Investigation on Scan-On-Receive and Adaptive Digital Beam-Forming for High-Resolution Wide-Swath Synthetic Aperture Radar [PDF]
, 2009 The work investigates the performance of the Smart Multi-Aperture Radar Technique (SMART) Synthetic Aperture Radar (SAR) system for high-resolution wide-swath imaging based on Scan-on-Receive (SCORE) algorithm for receive beam steering.
Bordoni, Federica +4 more
core
Synthetic aperture radar demonstration kit for signal processing education [PDF]
, 2007 A Synthetic Aperture Radar scale model has been developed to improve signal processing teaching. Based on low frequency ultrasound transmission, it is a low cost demonstration kit.
Chaumette, Eric +9 more
core +1 more source
Advanced Materials, EarlyView.Azobenzene photoswitches translate molecular‐scale E/Z photoisomerization into macroscopic material responses and device‐level photonic functions. This Review highlights how azobenzene research has evolved from molecular photochemistry to photoalignment, mass migration, photomechanics, and heat release, ultimately enabling holography, reconfigurable ...
Heeju Son +20 more
wiley +1 more source
Practical Guide to Ultrasound Beam Forming: Beam Pattern and Image Reconstruction Analysis
Applied Sciences, 2018 Starting from key ultrasound imaging features such as spatial and temporal resolution, contrast, penetration depth, array aperture, and field-of-view (FOV) size, the reader will be guided through the pros and cons of the main ultrasound beam-forming ...
Libertario Demi
doaj +1 more source
Research on Rebound Jamming Against Multi-Input Multi-Output Synthetic Aperture Radar
IEEE Access, 2020 Multi-Input Multi-Output Synthetic Aperture Radar (MIMO-SAR) emits orthogonal waveform, which reduces the probability of signal interception. Using multiple antennas to receive echoes, spatial filtering can be performed to avoid interference.
Yuntao Li +4 more
doaj +1 more source
Advanced Materials, EarlyView.A scalable bottom‐up CVD methodology, based on liquid transition metal salt precursors, is presented for the controlled growth of two high‐quality MoSe2–WSe2 heterostructures (HSs): purely lateral (HS I) and hybrid lateral/vertical (HS II), by simply adjusting precursor concentration.
Md Tarik Hossain +16 more
wiley +1 more source
Scientific ReportsIn this paper, we propose radial line slot array antenna for 5G fixed beam solutions aimed at integrating multiple frequencies of high gain aperture into a single antenna with a common feed. Thus generated shared aperture will facilitate multi-functional
Md Khadimul Islam +4 more
doaj +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
A Concept for High Performance Reflector-Based Synthetic Aperture Radar [PDF]
, 2010 The success of current spaceborne Synthetic Aperture Radar (SAR) is boosting the performance requirement 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 ...
Patyuchenko, Anton +9 more
core +1 more source