Results 81 to 90 of about 65,405 (227)
The Incidence and Cross Methods for Efficient Radar Detection
, 2013 The designation of the radar system is to detect the position and velocity of targets around us. The radar transmits a waveform, which is reflected back from the targets, and echo waveform is received.
Fish, Alexander, Gurevich, Shamgar
core +1 more source
Eos, Transactions American Geophysical Union, 1990 U.S. and French research establishments will build and share an airborne Doppler radar that they will design to gather data on large‐scale storm structures and global atmospheric processes.The University Corporation for Atmospheric Research (UCAR), Boulder, Colo., the Centre National d'Etudes des Telecommunications (CNET) and the Institut National des ...
openaire +1 more source
Obesity, Volume 34, Issue 4, Page 793-800, April 2026.ABSTRACT Objective Cholecystectomy (GBX) may alter energy metabolism, but human evidence is limited. We examined whether GBX alters energy expenditure (EE), respiratory exchange ratio (RER), and substrate oxidation. Methods A total of 384 healthy Southwestern Indigenous American adults (222 males, age 28 ± 6 years) were studied, including individuals ...
Beyza N. Aydin +6 more
wiley +1 more source
Applied Sciences, 2019 Under the same principle, laser radar could be more sensitive to the micro-Doppler (m-D) effect due to its wave length, as the characteristic of multi-resolution, S transform could reduce the influence of the micro-Doppler component and enhance the ...
Bo Zang +4 more
doaj +1 more source
Radar High Resolution Range & Micro-Doppler Analysis of Human Motions [PDF]
, 2009 In radar imaging it is well known that relative motion or deformation of parts of illuminated objects induce additional features in the Doppler frequency spectra.
Ghaleb, A. +3 more
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Classification of unarmed/armed personnel using the NetRAD multistatic radar for micro-Doppler and singular value decomposition features [PDF]
, 2015 In this letter, we present the use of experimental human micro-Doppler signature data gathered by a multistatic radar system to discriminate between unarmed and potentially armed personnel walking along different trajectories.
Fioranelli, Francesco +2 more
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Invigoration Due To Cloud Seeding: New Observations Confirm an Old Hypothesis
Geophysical Research Letters, Volume 53, Issue 6, 28 March 2026.Abstract The potential for cloud seeding to induce dynamic changes that alter cloud structure beyond basic ice formation processes has remained theoretical. While previous research hypothesized the presence of dynamic responses in seeded clouds, this study presents the first direct observational evidence that seeding can generate buoyant forces strong ...
Christopher C. Hohman +11 more
wiley +1 more source
The Journal of Engineering, 2019 The authors report a target separation detection and motion parameter estimation method based on the time-varying autoregressive (TVAR) model. The TVAR model is used to extract the instantaneous Doppler frequencies of multiple targets or scattering ...
Yaolin Zhang +3 more
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Geophysical Research Letters, Volume 53, Issue 6, 28 March 2026.Abstract The irregularities of ionospheric plasma bubbles (EPBs) sequentially generated over wide longitudes are expected to share similar lifetime under normal conditions. In this study, we report a special case where the EPB irregularity lifetime over wide longitudes showed a quasi‐wavelike undulation pattern with wavelength of ∼3,000 km, that is ...
Wenjie Sun +15 more
wiley +1 more source
Radar detectability of light aircraft micro‐Doppler modulation
IET Radar, Sonar & NavigationThe 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 +3 more
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