Results 51 to 60 of about 3,510 (228)
Radar and RGB-depth sensors for fall detection: a review [PDF]
, 2017 This paper reviews recent works in the literature on the use of systems based on radar and RGB-Depth (RGB-D) sensors for fall detection, and discusses outstanding research challenges and trends related to this research field.
Cippitelli, Enea +3 more
core +1 more source
Bi/multi-static Synthetic Aperture Radar Using Spaceborne Illuminator
Leida xuebao, 2023 Bi/multistatic Synthetic Aperture Radar (SAR) using spaceborne illuminator utilizes spaceborne platforms as transmitters and satellites, near-space vehicles, aircraft, and ground platforms as receivers, which allows high-resolution imaging of ground and ...
Junjie WU +8 more
doaj +1 more source
First Measurements with NeXtRAD, a Polarimetric X/L Band Radar Network [PDF]
, 2017 NeXtRAD is a fully polarimetric, X/L Band radar network. It is a development of the older NetRAD system and builds on the experience gained with extensive deployments of NetRAD for sea clutter and target measurements.
Alhuwaimel, S. +14 more
core +2 more sources
Modeling Regional Electric Field Using EISCAT3D Observations
Journal of Geophysical Research: Space Physics, Volume 130, Issue 10, October 2025.Abstract EISCAT3D, which is in its final stage of construction, will be the next generation incoherent scatter radar (ISR) system to provide the full ion velocity vector across hundreds of kms in vertical and horizontal directions. This presents a tremendous opportunity to study the three‐dimensional nature of ionospheric electrodynamics.
Habtamu W. Tesfaw +5 more
wiley +1 more source
Experimental analysis of multistatic multiband radar signatures of wind turbines [PDF]
, 2016 This study presents the analysis of recent experimental data acquired using two radar systems at S-band and X-band to measure simultaneous monostatic and bistatic signatures of operational wind turbines near Shrivenham, UK.
Balleri, Alessio +3 more
core +2 more sources
Two‐Day Wave Modulation of Gravity Wave Momentum Fluxes Observed Over South America
Journal of Geophysical Research: Atmospheres, Volume 130, Issue 8, 28 April 2025.Abstract Planetary wave (PW) modulation of gravity wave (GW) dissipation has long been proposed as a source of longitudinal variability in the mesosphere and lower thermosphere. However, direct measurements of GW drag are rare. We identify 2‐day wave variations in GW momentum fluxes measured by the Southern Argentina Agile Meteor Radar (SAAMER) in Rio ...
Ruth S. Lieberman +5 more
wiley +1 more source
Effect of sparsity-aware time–frequency analysis on dynamic hand gesture classification with radar micro-Doppler signatures [PDF]
, 2018 Dynamic hand gesture recognition is of great importance in human-computer interaction. In this study, the authors investigate the effect of sparsity-driven time-frequency analysis on hand gesture classification.
Fioranelli, Francesco +3 more
core +1 more source
Geophysical Research Letters, Volume 52, Issue 7, 16 April 2025.Abstract During the March equinox of 2023, a strong easterly wind of ∼80 m s−1 appeared at an altitude of ∼82 km in the equatorial upper mesosphere, which is regarded as an enhancement of the mesopause semi‐annual oscillation. In this study, a new reanalysis data available up to 110 km was used to investigate its momentum budget.
Kaoru Sato +9 more
wiley +1 more source
Earth and Space Science, 2021 This paper presents for the first time results on winds, tides, gradients of horizontal winds, and momentum fluxes at mesosphere and lower thermosphere altitudes over southern Patagonia, one of the most dynamically active regions in the world.
J. Federico Conte +5 more
doaj +1 more source
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2021 Ground-penetrating radar (GPR) technology for underground exploration consists of the transmission of an electromagnetic signal in the ground for sensing the presence of buried objects.
Michele Ambrosanio +3 more
doaj +1 more source