Results 1 to 10 of about 213 (88)
Harmonic FMCW Radar System: Passive Tag Detection and Precise Ranging Estimation [PDF]
SensorsThis paper details the design and implementation of a harmonic frequency-modulated continuous-wave (FMCW) radar system, specialized in detecting harmonic tags and achieving precise range estimation.
Ahmed El-Awamry +3 more
doaj +8 more sources
Detection of Electronic Devices Using FMCW Nonlinear Radar [PDF]
Sensors, 2022 Nonlinear radars can be utilized to detect electronic devices, which are difficult to detect with conventional radars due to their small radar cross sections (RCS).
Kyuho Cha +4 more
doaj +4 more sources
Impact of Phase Noise on Range Estimation Accuracy in Harmonic FMCW Radar Systems
IEEE AccessThis paper investigates the impact of phase noise on range estimation accuracy in harmonic Frequency-Modulated Continuous-Wave (FMCW) radar systems.
Ahmed El-Awamry +3 more
doaj +4 more sources
Noncontact Cardiac Activity Detection Based on Single-Channel ISM Band FMCW Radar [PDF]
Biosensors, 2023 The heart is an important organ that maintains human life activities, and its movement reflects its health status. Utilizing electromagnetic waves as a sensing tool, radar sensors enable noncontact measurement of cardiac motion, offering advantages over ...
Kui Qu, Lei Wei, Rongfu Zhang
doaj +2 more sources
Terahertz Nondestructive Testing with Ultra-Wideband FMCW Radar [PDF]
Sensors, 2022 This paper presents the development, performance, integration, and implementation of a 150 GHz FMCW radar based on a homodyne harmonic mixing scheme for noncontact, nondestructive testing. This system offers high-dynamic-range measurement capabilities up
Barnabé Carré +5 more
doaj +2 more sources
Spatial Blind Source Estimation of Respiratory Rate and Heart Rate Detection Based on Frequency-Modulated Continuous Wave Radar [PDF]
SensorsWhen detecting respiratory rate and heart rate in an FMCW radar room, there is a lot of static clutter and white Gaussian noise generated by hardware heat loss in the environment, which makes the separation of respiratory and heartbeat signals poor.
Tong Pei +4 more
doaj +2 more sources
Design of a 24 GHz FMCW radar system based on sub‐harmonic generation
IET Radar, Sonar and 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, Frank Ellinger
exaly +4 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
SignalsAccurate peak detection in the frequency domain is fundamental to reliable range estimation in Frequency-Modulated Continuous-Wave (FMCW) radar systems, particularly in challenging conditions characterized by a low signal-to-noise ratio (SNR) and phase ...
Ahmed El-Awamry +3 more
doaj +2 more sources
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