Results 11 to 20 of about 1,302,382 (255)
Blood Glucose Level Monitoring Using an FMCW Millimeter-Wave Radar Sensor
Remote Sensing, 2020 In this article, a novel sensing approach is presented for glucose level monitoring where a robust low-power millimeter(mm)-wave radar system is used to differentiate between blood samples of disparate glucose concentrations in the range 0.5 to 3.5 mg/mL.
Ala Eldin Omer +3 more
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Methods for determining the phase difference of the output signals for the receiving elements of a phased antenna array in a radiophoton circuit with parallel and series pairwise connection of electro-optical modulators [PDF]
Научно-технический вестник информационных технологий, механики и оптики, 2021 Obtaining accurate phase values of the output signals for the receiving elements of a phased array antenna is one of the crucial issues relating to radio-photon technologies in radar and radio communication.
Yaroslav N. Gusenitsa +3 more
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Safe Helicopter Landing on Unprepared Terrain Using Onboard Interferometric Radar
Sensors, 2020 This letter proposes a radar interferometric survey system for the ground surface of helicopter landing sites. This system generates high-quality three-dimensional terrain surface topography data and estimates the slope of the site with the required ...
Pavel E. Shimkin +3 more
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Известия высших учебных заведений России: Радиоэлектроника, 2023 Introduction. Achieving improved accuracy and sensitivity of the direction finding of radio signals represents a relevant research direction in the field of modern HF radio monitoring.
G. S. Gribov
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MIMO Cognitive Radios with Antenna Selection [PDF]
IEEE Transactions on Wireless Communications, 2011 In this paper, we propose two solutions to the problem of joint transmit-receive antenna selection in a multiple-input multiple-output (MIMO) cognitive radio (CR) system. Our objective is to maximize CR data rates and satisfy interference constraints at the primary user (PU) receiver(s).
Muhammad Fainan Hanif +3 more
openaire +2 more sources
Comput. Networks, 2020 Arena is an open-access wireless testing platform based on a grid of antennas mounted on the ceiling of a large office-space environment. Each antenna is connected to programmable software-defined radios (SDR) enabling sub-6 GHz 5G-and-beyond spectrum ...
L. Bertizzolo +6 more
semanticscholar +1 more source
Frequency selective reconfigurable microstrip antenna for cognitive radio applications
Advanced Electromagnetics, 2022 For the efficient utilization of electromagnetic radio spectrum cognitive radio communication system is employed, which deals with the spectrum scarcity. An efficient antenna is essential for the appropriate selection of the available frequencies.
D. S. Aldar
doaj +1 more source
IEEE Access, 2020 In state-of-the-art mobile devices (MDs), non-radio contexts (i.e., non-real-time data) provided by various sensors have been excluded in determining the modem configuration because of the problems in applying them in real-time modem operations.
Heungseop Ahn +4 more
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A novel reverse design method of tag antenna based on image analysis
Journal of Algorithms & Computational Technology, 2020 Since the working efficiency of the entire radio frequency identification system depends on the performance of the radio frequency identification tag antenna, the research and design of the tag antenna have received attention, especially for radio ...
Zhenlu Liu +4 more
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A Chip Antenna in LTCC for UWB Radios [PDF]
IEEE Transactions on Antennas and Propagation, 2008 The correspondence presents a chip antenna for ultrawide- band (UWB) radios. The chip antenna is realized with a simple radiating element and small ground plane in low temperature cofired ceramic (LTCC) technology. The chip antenna has size 17 X 8 X 0.8 mm3 and achieves impedance bandwidth from 3.75 to 10.45 GHz and gain from - 2 to 2.3 dBi over this ...
Sun, Mei, Zhang, Yue Ping
openaire +3 more sources