Results 91 to 100 of about 23,685 (263)

Micro-Doppler Ambiguity Resolution Based on Short-Time Compressed Sensing

Journal of Electrical and Computer Engineering, 2015
When using a long range radar (LRR) to track a target with micromotion, the micro-Doppler embodied in the radar echoes may suffer from ambiguity problem.
Jing-bo Zhuang, Zhen-miao Deng, Yi-shan Ye, Yi-xiong Zhang, Yan-yong Chen   +4 more
doaj   +1 more source

Micro-Doppler-based in-home aided and unaided walking recognition with multiple radar and sonar systems [PDF]

, 2016
The potential for using micro-Doppler signatures as a basis for distinguishing between aided and unaided gaits is considered in this paper for the purpose of characterizing normal elderly gait and assessment of patient recovery.
Balleri, Alessio, Clemente, Carmine, Gurbuz, Sevgi Zubeyde, Soraghan, John J.   +3 more
core   +1 more source

Unveiling the Microvasculature: The Index of Microcirculatory Resistance and Its Expanding Role in Cardiovascular Care

Catheterization and Cardiovascular Interventions, EarlyView.
ABSTRACT Index of microcirculatory resistance (IMR) is a cutting‐edge, wire‐based tool that advances the capability assessment of coronary microvascular function. By utilizing distal coronary pressure and mean transit time under maximal hyperemia, IMR delivers consistent, reproducible insights into the microvasculature's dynamic health.
Joanna Sohn, Matthew A. Soderstrom, Ariana Ramirez, John‐Henry Dean, Raj Shah, Debanshu Roy, Kenneth Stone, Ariel Vinas, Bryan Ramsey, Charles Lin, Robert Chilton   +10 more
wiley   +1 more source

Micro‐motion parameters extraction of rotating target based on analytical solution in vortex electromagnetic wave radar

IET Radar, Sonar & Navigation
The linear Doppler effect and angular Doppler effect in vortex electromagnetic wave radar echoes can be used to extract comprehensive micro‐motion parameters.
Hang Yuan, Yi‐Jun Chen, Ying Luo, Jia Liang, Ying‐Xi Liu, Dan Wang   +5 more
doaj   +1 more source

MACHe - Model-based algorithm for classification of helicopters [PDF]

, 2016
Secondary motions of a target, such as rotating blades of a helicopter's main rotor, induce a Doppler modulation around the main Doppler shift. This represents a unique feature of the target itself, known as micro-Doppler signature, and can be used for ...
Gaglione, Domenico
core   +1 more source

Echocardiography‐Assisted Stenting of the Ductus Venosus in Infracardiac TAPVC: Report of a New Technique and Review of the Literature

Catheterization and Cardiovascular Interventions, EarlyView.
ABSTRACT Neonates with infracardiac total anomalous pulmonary venous connection (TAPVC) frequently require urgent treatment. If surgical repair is contraindicated due to extreme prematurity, interventional stenting of the ductus venosus (DV) has been introduced successfully to postpone surgery.
Simon Schmid, Michael Hofbeck, Johannes Nordmeyer, Ralf Rauch, Jörg Michel   +4 more
wiley   +1 more source

Radar detectability of light aircraft micro‐Doppler modulation

IET Radar, Sonar & Navigation
The critical role of specifying micro‐Doppler mode performance in the modelling and development of modern radar systems is investigated. The authors focus on the detection of micro‐Doppler modulation from light aircraft, analysing data from eight ...
Robert John Berndt, Mohammed Yunus Abdul Gaffar, Willem Andries Jacobus Nel, Daniel W. O’Hagan   +3 more
doaj   +1 more source

Radar-based Feature Design and Multiclass Classification for Road User Recognition

, 2019
The classification of individual traffic participants is a complex task, especially for challenging scenarios with multiple road users or under bad weather conditions.
Appenrodt, Nils, Dickmann, Jürgen, Scheiner, Nicolas, Sick, Bernhard   +3 more
core   +1 more source

Multisensor Data Fusion for Human Activities Classification and Fall Detection [PDF]

, 2017
Significant research exists on the use of wearable sensors in the context of assisted living for activities recognition and fall detection, whereas radar sensors have been studied only recently in this domain.
Cippitelli, Enea, Fioranelli, Francesco, Gambi, Ennio, Heidari, Hadi, Le Kernec, Julien, Li, Haobo, Pepa, Matteo, Shrestha, Aman, Spinsante, Susanna   +8 more
core   +1 more source

Numerical investigation on the influence of mesoscopic deformation on contact area and hydraulic aperture to fracture seepage

Deep Underground Science and Engineering, EarlyView.
Fluid flow through a single fracture is commonly described by the cubic law. However, deviations from this model are expected because natural fracture surfaces are rough and in contact with each other in discrete regions. In this study, the interactions between fracture closure, contact area, and hydraulic characterization of mesoscopic‐scale rough ...
Chenghao Han, Yuanlin Bai, Weijie Zhang, Jicheng Zhang, Hongfa Ma, Weiye Li   +5 more
wiley   +1 more source