Results 71 to 80 of about 287,056 (358)

Stairs Detection for Enhancing Wheelchair Capabilities Based on Radar Sensors

, 2017
Powered wheelchair users encounter barriers to their mobility everyday. Entering a building with non barrier-free areas can massively impact the user mobility related activities.
Abdulatif, Sherif, Aziz, Fady, Cooper, Rory, Kleiner, Bernhard, Riehs, Christopher, Schneider, Urs   +5 more
core   +1 more source

Time-Delay Multiplexing of Two Beams in a Terahertz Imaging Radar [PDF]

, 2010
We demonstrate a time-delay multiplexing technique that doubles the frame rate of a 660–690-GHz imaging radar with minimal additional instrument complexity.
Bryllert, Tomas, Chattopadhyay, Goutam, Cooper, Ken B., Dengler, Robert J., Llombart, Nuria, Siegel, Peter H.   +5 more
core   +1 more source

Metamaterial Antennas Enhance MRI of the Eye and Occipital Brain

Advanced Materials, EarlyView.
A radiofrequency antenna platform comprising planar and bend configurations is developed, incorporating structurally integrated epsilon‐negative metamaterial unit cells to enhance MRI. These antennas enable high‐resolution in vivo human MRI of the eye, orbit, and occipital brain. Comprehensive validation, including simulations, phantom experiments, SAR,
Nandita Saha, Bilguun Nurzed, Mostafa Berangi, Andre Kuehne, Helmar Waiczies, Igor Fabian Tellez Ceja, Xiang Hu, Thomas Gladytz, Lisa Krenz, Dave Huebler, Beate Endemann, Claudia Brockmann, Ebba Beller, Oliver Stachs, Thoralf Niendorf   +14 more
wiley   +1 more source

Multistatic Coded Continuous Wave Meteor Radar [PDF]

, 2017
15th MST Radar WorkshopSession M1: Radar hardware, signal processing, quality control for coherent and incoherent radarsMay 29 (Mon), NIPR ...

core   +1 more source

Spatio-temporal influence of tundra snow properties on Ku-band (17.2 GHz) backscatter [PDF]

, 2015
During the 2010/11 boreal winter, a distributed set of backscatter measurements was collected using a ground-based Ku-band (17.2 GHz) scatterometer system at 26 open tundra sites.
Derksen, Chris, Dugauy, Claude, Gunn, Grant, Kasurak, Andrew, Kelly, Richard, King, Joshua, Rutter, Nick, Watts, Tom   +7 more
core   +1 more source

Recent Progress on Flexible Multimodal Sensors: Decoupling Strategies, Fabrication and Applications

Advanced Materials, EarlyView.
In this review, we establish a tripartite decoupling framework for flexible multimodal sensors, which elucidates the underlying principles of signal crosstalk and their solutions through material design, structural engineering, and AI algorithms. We also demonstrate its potential applications across environmental monitoring, health monitoring, human ...
Tao Wu, Yu‐Tao Li, Luyu Zhao, Yi Zhang, Zhaojie Zhang, Jian Yuan, Yiwen Wu, Anqi Che, Yuanxiao Ma, Yang Chai, Yeliang Wang   +10 more
wiley   +1 more source

Advanced Ceramics in Aerospace and Defense: The Interrelationship between Traditional and Additive Manufacturing Approaches

Advanced Materials Technologies, EarlyView.
Additive manufacturing revolutionizes production by enabling on‐demand, customized, and sustainable manufacturing with streamlined supply chains. While metal and polymer AM are well‐established, advanced ceramic AM is rapidly emerging, overcoming traditional material challenges.
Kateryna Oleksandrivna Shvydyuk, Senentxu Lanceros‐Mendez, Abílio Pereira Silva   +2 more
wiley   +1 more source

A New Demodulation and Modulation Method Designed for FMCW Radar

Journal of Electrical and Computer Engineering, 2010
An efficient demodulation method designed for FMCW (Frequency-Modulated Continuous Wave) radar is presented. It is a kind of modified DFT (IDFT) algorithm; the spectrum segment of interest can be easily extracted from the original signal without ...
Wei Shen, Biyang Wen
doaj   +1 more source

Experimental Investigation of Ocean Wave Measurement Using Short-Range K-Band Radar: Dock-Based and Boat-Based Wind Wave Measurements

Remote Sensing, 2019
In this paper, an ocean wave measurement technique and a newly developed short-range K-band radar are tested. In previous work, the technique and its feasibility were studied based on numerical simulations and wave tank experiments, while its performance
Jian Cui, Ralf Bachmayer, Brad de Young, Weimin Huang   +3 more
doaj   +1 more source

Simultaneous User Localization and Identification Using Leaky-Wave Antennas and Backscattering Communications

IEEE Access, 2022
High-speed detection and identification of mobile terminals located in the vicinity of highly directive base stations is essential for future mm-wave communication systems.
Kyriakos Neophytou, Matthias Steeg, Jonas Tebart, Andreas Stohr, Stavros Iezekiel, Marco A. Antoniades   +5 more
doaj   +1 more source