Results 191 to 200 of about 160,481 (357)

A Hybrid Millimeter-Wave Radar-Ultrasonic Fusion System for Robust Human Activity Recognition with Attention-Enhanced Deep Learning. [PDF]

Sensors (Basel)
Yao L, Chung KL, Tang L, Ye T, Wang S, Xu P, Bi Y, Wu Y.   +7 more
europepmc   +1 more source

Human Movement Recognition Based on 3D Point Cloud Spatiotemporal Information from Millimeter-Wave Radar. [PDF]

Sensors (Basel), 2023
Dang X, Jin P, Hao Z, Ke W, Deng H, Wang L.   +5 more
europepmc   +1 more source

Evaluating the realism of double moment parameterised particle size distributions in a midlatitude frontal ice cloud with complex microphysics

Quarterly Journal of the Royal Meteorological Society, EarlyView.
Uncertainties in the representation of ice particle size distributions (PSDs) cause inaccuracies in parameterisations of clouds. In this study, observed PSDs from a midlatitude frontal case study are compared with gamma PSDs with the same concentration and ice water content.
Rosie M. Mammatt, Christopher D. Westbrook, Jonathan Crosier, Karina McCusker   +3 more
wiley   +1 more source

Estimating Rain‐Specific Attenuation at Extremely High Frequencies From Disdrometer Measurements at Various Climate Zones in the US

International Journal of Satellite Communications and Networking, EarlyView.
ABSTRACT The raindrop size distribution (DSD) plays an essential role in understanding rain attenuation effects at extremely high frequencies (EHFs). Over 1 year of DSD measurements was taken at different Köppen–Geiger climate classifications within the United States. Optical disdrometers from Thies Clima were used to measure both the size and velocity
Eugene S. Hong, George Brost, Nicholas Tarasenko, Steven A. Lane   +3 more
wiley   +1 more source

A Joint Gesture-Identity Recognition Framework Based on 4D Millimeter-Wave Radar Sensing. [PDF]

Sensors (Basel)
Wu Y, Wu L, Hu T, Xiao Z, Zhang J, Xiao M.   +5 more
europepmc   +1 more source

Compact Wearable Antenna with Metasurface for Millimeter-Wave Radar Applications. [PDF]

Materials (Basel), 2023
de Cos Gómez ME, Fernández Álvarez H, Flórez Berdasco A, Las-Heras Andrés F.   +3 more
europepmc   +1 more source

Featured Based Segmentation Method for Buliding Millimeter Wave Radar Gesture Recognition Data Sets

, 2019
Xiaoying Zhao, Yilin Zhao, Penghui Chen, Jun Wang   +3 more
openalex   +2 more sources

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, Ranran Wang, Fuyang Tian, Yudao Li, Zhuolin Wang, Yuxin Yu, Liping Ma, Xin Lu   +7 more
wiley   +1 more source

Unusual vertical oscillations of a radiosonde

Weather, EarlyView.
In summer 2023 in southern England, several unusual balloon launches were observed which descended for a few minutes before resuming ascent. This unusual vertical oscillation was repeated several times in a ‘roller‐coaster’‐like pattern. This article discusses the behaviour of the balloons.
Caleb Miller, Chun Hay Brian Lo, Stephen Burt, Ryan R. Neely III   +3 more
wiley   +1 more source

Development of a high-precision nano millimeter-wave radar system for non-contact bridge displacement monitoring. [PDF]

Sci Rep
Xiao M, Han Z, Yu J, Xu G, Zhao W, Wu Y.
europepmc   +1 more source