Results 11 to 20 of about 12,262 (174)
Design of a 24 GHz FMCW radar system based on sub‐harmonic generation
IET Radar, Sonar & Navigation, 2018 This study presents a novel frequency modulated continuous wave (FMCW) radar system based on sub‐harmonic generation, where a 24 GHz frequency divider‐by‐10 is used as an active reflector tag. A practical prototype is designed and fabricated on a GF45nm‐Silicon on Insulator (SOI) technology for the 24 GHz building blocks, while a GF0.18 µm 7WL Bipolar ...
Naglaa El Agroudy +3 more
semanticscholar +6 more sources
Detection of vital signs based on millimeter wave radar [PDF]
Scientific ReportsWith the growing demand for health monitoring, non-contact vital signs monitoring technology has garnered widespread attention. While traditional health monitoring methods are accurate, they have limitations in terms of non-contact and non-invasive ...
Zhanjun Hao +5 more
doaj +2 more sources
Metasurface Doppler Cloak for Broadband Radar Stealth
Advanced Physics ResearchConcealing an aircraft is a multi‐faceted endeavor, notably involving radio and infrared frequencies. In a radar stealth context, it often translates to the reduction of the radar cross‐section (RCS).
Tanguy Lopez +3 more
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FMCW-based contactless heart rate monitoring [PDF]
Scientific ReportsHeart disease is a significant global health issue. Traditional methods for heart rate monitoring typically require close physical contact, which limits the continuity and convenience of monitoring. To achieve real-time, non-contact heartbeat monitoring,
Zhanjun Hao +5 more
doaj +2 more sources
ESSCIRC 2019 - IEEE 45th European Solid State Circuits Conference (ESSCIRC), 2019 This paper presents a digitally controlled frequency generator for dual frequency-band radar system that is optimized for 16 nm FinFET CMOS. It is based on a 21% wide tuning range, fine-resolution DCO with only switchable metal capacitors. A third-harmonic boosting DCO simultaneously generates 22.5–28 GHz and sufficiently strong 68–84 GHz signals to ...
Kuo, Feng Wei (author) +6 more
openaire +4 more sources
A Coherent Dual-Band FMCW Photonic Radar Based on a Synchronized FMCW Optoelectronic Oscillator
IEEE AccessThis paper proposes and experimentally demonstrates a novel coherent radar architecture based on a synchronized frequency-modulated continuous-wave optoelectronic oscillator.
Youngseok Bae, Minji Hyun, Joonyong Park
doaj +2 more sources
Short-range wideband FMCW radar for millimetric displacement measurements
IEEE Transactions on Geoscience and Remote Sensing, 2014 International audienceThe frequency modulated continuous wave (FMCW) radar is an alternative to the pulse radar when the distance to the target is short.
Anghel, Andrei +4 more
core +4 more sources
Accurate Radar-Based Heartbeat Measurement Using Higher Harmonic Components
IEEE AccessThis study proposes a radar-based heartbeat measurement method that uses the absolute value of the second derivative of the complex radar signal, rather than its phase, in combination with the variational mode extraction method, which is a type of mode ...
Itsuki Iwata +3 more
doaj +3 more sources
Self-Harmonic Suppression Algorithms for Effective Detection in Nonlienar FMCW Radar
The Journal of Korean Institute of Electromagnetic Engineering and ScienceWon-Ryeol Lee, Soo-Young Oh, Sun-Ki Hong
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