Results 101 to 110 of about 65,405 (227)
Passive Radar for Opportunistic Monitoring in E-Health Applications
IEEE Journal of Translational Engineering in Health and Medicine, 2018 This paper proposes a passive Doppler radar as a non-contact sensing method to capture human body movements, recognize respiration, and physical activities in e-Health applications.
Wenda Li, Bo Tan, Robert Piechocki
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Summary of flight tests of an airborne lighting locator system and comparison with ground-based measurements of precipitation and turbulence [PDF]
Data from an airborne lightning locator system and data relating to storm intensity obtained by ground-based Doppler radars and the S-band research radar are presented.
Crabill, N. L., Fisher, B. D.
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Retrieval and Attribution of Tropical Cyclone Vertical Tilt From SAR and Infrared Satellite Imagery
Geophysical Research Letters, Volume 53, Issue 5, 16 March 2026.Abstract Tropical cyclones (TCs) are destructive natural hazards, and their vertical tilt, defined as the displacement between the sea surface center and cloud top center, plays a key role in storm structure and intensity changes. This study constructed a global satellite‐based tilt data set from 1,024 paired synthetic aperture radar (SAR) and infrared
Shanshan Mu +4 more
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Chung-Li, Taiwan dual mode (Doppler and spaced antenna) VHF radar: Preliminary specifications [PDF]
, 1983 A major unresolved question in the field of atmospheric research using VHF radar techniques is the relative merit of the two most widely used systems. These systems are the Doppler method and the spaced antenna method.
Brosnahan, J. W., Chao, J., Rottger, J.
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Dynamic Hand Gesture Classification Based on Radar Micro-Doppler Signatures [PDF]
, 2016 Dynamic hand gesture recognition is of great importance for human-computer interaction. In this paper, we present a method to discriminate the four kinds of dynamic hand gestures, snapping fingers, flipping fingers, hand rotation and calling, using a ...
Fioranelli, Francesco +4 more
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DEALIASING DOPPLER SPECTRA IN METEOROLOGICAL RADARS [PDF]
Radio Physics and Radio Astronomy, 2012 ?????????????????? ?????????? ???????????????????????????? ?????????????????????????? ????????????????. ?????????? ?????????????? ???? ??????, ?????? ???????????????????? ???????????????????????? ???????????????????????????????????? ???????????????? ??????????????????????????????????????????????, ?? ?????????? ???? ???????????????????? ?????????????????
openaire +2 more sources
Journal of Geophysical Research: Atmospheres, Volume 131, Issue 5, 16 March 2026.Abstract Mesoscale convective systems (MCSs) are large, organized convective storms that frequently produce flash floods and other severe hazards such as damaging winds, hail, and tornadoes. Developing an observationally based MCS hazard climatology is important for establishing a baseline to evaluate the representation of these events in numerical ...
Wenjun Cui +2 more
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The Effect of Sea Surface Slicks on the Doppler Spectrum Width of a Backscattered Microwave Signal
Sensors, 2008 The influence of a surface-active substance (SAS) film on the Doppler spectrum width at small incidence angles is theoretically investigated for the first time for microwave radars with narrow-beam and knife-beam antenna patterns.
Eugeny Meshkov +2 more
doaj
Wearable Data‐Driven Transformer Model for Physical Load Assessment in Badminton Training
Engineering Reports, Volume 8, Issue 3, March 2026.Through multi‐dimensional data fusion and innovative network architecture, the management from data collection to physical fitness evaluation is realized. ABSTRACT This study focuses on capturing the physiological state and action characteristics of badminton players in the high‐intensity and fast‐changing sports scene.
Manling Sun
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Meteorological Applications, Volume 33, Issue 2, March/April 2026.Structural characteristics of an EF4 tornado in Funing were reproduced through numerical simulation with a hectometer‐scale resolution. Results demonstrate that the tornado initiated in the mid‐ to upper‐levels, with the stretching term of the vorticity equation playing a dominant role throughout its development. ABSTRACT Tornadoes are characterized by
Jialin Ying +5 more
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