Results 41 to 50 of about 1,755 (182)
Improved Heartbeat Detection by Exploiting Temporal Phase Coherency in FMCW Radar
IEEE Access, 2021 We propose a novel range-bin selection method, temporal phase coherency (TPC), to improve the accuracy of heartbeat extraction by using the frequency-modulated continuous wave (FMCW) radar.
Ho-Ik Choi +3 more
doaj +1 more source
Portable Radar for Noncontact Heart Rate Monitoring and Estrus Detection in Dairy Cows
IEEJ Transactions on Electrical and Electronic Engineering, EarlyView.This study introduces a portable radar system for real‐time monitoring of respiratory and heart rates in dairy cows. It uses millimeter‐wave Frequency Modulated Continuous Wave (FMCW) radar to perform noncontact physiological sensing, reducing behavioral disturbance. The radar system's design prioritizes portability, cost‐effectiveness, and robustness,
Yingxiu Li +7 more
wiley +1 more source
Classification of Interference Signal for Automotive Radar Systems With Convolutional Neural Network
IEEE Access, 2020 When a radar signal generated by another vehicle arrives at an ego-vehicle, mutual interference occurs, which can seriously degrade the detection performance of the radar.
Jinwook Kim +3 more
doaj +1 more source
Ambiguity Function Shaping in FMCW Automotive Radar
2023 57th Asilomar Conference on Signals, Systems, and Computers, 2023 Frequency-modulated continuous wave (FMCW) radar with inter-chirp coding produces high side-lobes in the Doppler and range dimensions of the radar's ambiguity function. The high side-lobes may cause miss-detection due to masking between targets that are at similar range and have large received power difference, as is often the case in automotive ...
Zahra Esmaeilbeiz +2 more
openaire +2 more sources
First Triple‐Frequency Retrievals of Binned Raindrop Size Distributions
Geophysical Research Letters, Volume 53, Issue 7, 16 April 2026.Abstract Our understanding of raindrop size distributions (DSDs) aloft is largely limited, owing to a scarcity of effective measurements. In this study, a two‐step optimal estimation technique is developed for retrieving binned DSDs based on a newly developed vertically‐pointing triple‐frequency radar system. In the first step, we employ the Tridon and
Fuxin Yao +7 more
wiley +1 more source
Proposal of multiple access FMCW radar for inter-radar interference avoidance
The Journal of Engineering, 2019 Inter-radar interference will be a crucial problem when a number of frequency modulated continuous wave (FMCW) radars are densely deployed in future, since it can cause miss detection and false detection of the target due to wideband interference and ...
Mikihiro Kurosawa +5 more
doaj +1 more source
A review of the FATIMA Yellow Sea field campaign research
Quarterly Journal of the Royal Meteorological Society, Volume 152, Issue 777, April 2026 Part B.The FATIMA marine fog project took place over the Sable Island region of eastern Canada (summer 2022) and the Yellow Sea of the Republic of Korea (ROK, summer 2023). Its goals are to improve marine fog monitoring and forecasting. Instrumented multiple research vessels, aircraft, tethered balloon and autonomous systems, ocean observation sites, and ...
Seok Lee +50 more
wiley +1 more source
Detailed Analysis and Modeling of Phase Noise and Systematic Phase Distortions in FMCW Radar Systems
IEEE Journal of Microwaves, 2022 In coherent continuous-wave (CW) radar systems, such as frequency-modulated CW (FMCW) radar systems, measurement precision is distorted by phase noise and systematic phase errors during radar signal generation.
Peter Tschapek +3 more
doaj +1 more source
Quarterly Journal of the Royal Meteorological Society, Volume 152, Issue 774, January 2026 Part A.We use active remote sensing from a ship during the EUREC4$$ {\mathrm{EUREC}}^4 $$A campaign to characterize the environment before, during, and after precipitation in shallow convection. (1) Shallow clouds barely precipitate (only virga). Congestus clouds generate precipitation, occurring less often in the afternoon but with higher cloud fractions. (2)
Claudia Acquistapace +5 more
wiley +1 more source
Selecting Target Range with Accurate Vital Sign Using Spatial Phase Coherency of FMCW Radar
Applied Sciences, 2021 Respiration and heartbeat are basic indicators of the physiological state of human beings. Frequency-modulated continuous wave (FMCW) radar can sense micro-displacement in the human body surface without contact, and is used for vital-sign (respiration ...
Ho-Ik Choi +3 more
doaj +1 more source