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 +10 more sources
Detection of Electronic Devices Using FMCW Nonlinear Radar
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 +5 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 +4 more sources
Radar-Based Heart Rate Estimation Method Under Respiratory Harmonic Interference [PDF]
SensorsNon-contact vital sign monitoring using millimeter-wave radar has emerged as a promising alternative to contact-based devices for continuous healthcare and elderly care applications. However, accurate heart rate estimation remains challenging because the
Didi Xu +4 more
doaj +2 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
Interferometric-Based Vital-Sign Signature Identification with ML Validation for Privacy-Preserving Human Detection [PDF]
SensorsHuman presence detection is critical when building smart cities with use cases in sectors like smart homes, emergency evacuation, health-care monitoring and others.
Soumalya Bose +7 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 ...
Frank Ellinger, Naglaa El Agroudy
exaly +4 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
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