Results 51 to 60 of about 707,332 (306)
Motion Classification Using Kinematically Sifted ACGAN-Synthesized Radar Micro-Doppler Signatures [PDF]
IEEE Transactions on Aerospace and Electronic Systems, 2020 Deep neural networks have recently received a great deal of attention in applications requiring classification of radar returns, including radar-based human activity recognition for security, smart homes, assisted living, and biomedicine.
B. Erol, S. Gurbuz, M. Amin
semanticscholar +1 more source
Fall Detection Based on Deep Learning Fusing Ultrawideband Radar Spectrograms
Leida xuebao, 2023 Compared with narrowband Doppler radar, ultrawideband radar can simultaneously acquire the range and Doppler information of targets, which is more beneficial for behavior recognition.
Mi HE, Qinwen PING, Ran DAI
doaj +1 more source
Code Optimization and Angle-Doppler Imaging for ST-CDM LFMCW MIMO Radar Systems [PDF]
arXiv, 2023 We consider code optimization and angle-Doppler imaging for slow-time code division multiplexing (ST-CDM) linear frequency-modulated continuous-wave (LFMCW) multiple-input multiple-output (MIMO) radar systems. We optimize the slow-time code via the minimization of a Cram{\'e}r-Rao Bound (CRB)-based metric to enhance the parameter estimation performance.
arxiv
Doppler Radar Techniques for Accurate Respiration Characterization and Subject Identification
IEEE Journal on Emerging and Selected Topics in Circuits and Systems, 2018 A low distortion dc coupled CW radar system with high signal to noise ratio is capable of accurate representation of respiration in human subjects. We propose to test the hypothesis that a non-contact physiological radar monitoring system which measures ...
Ashikur Rahman +4 more
semanticscholar +1 more source
Advanced Photonics Research, EarlyView.This work presents a systematic review of atmospheric turbulence fundamentals, including theoretical formulations and adaptive optics‐based mitigation strategies. This includes an in‐depth examination of the devices, theories, and methodologies associated with traditional correction approaches.
Qinghui Liu +5 more
wiley +1 more source
Applied Sciences, 2022 A new Doppler radar using millimeter-waves in the Ka-band, named the “dual-comb Doppler reflectometer”, has been developed to measure the turbulence intensity and its velocity in high-temperature plasmas. For the realization of a fusion power generation,
Tokihiko Tokuzawa +6 more
doaj +1 more source
Improved rain rate and drop size retrievals from airborne Doppler radar [PDF]
Atmospheric Chemistry and Physics, 2017 Satellite remote sensing of rain is important for quantifying the hydrological cycle, atmospheric energy budget, and cloud and precipitation processes; however, radar retrievals of rain rate are sensitive to assumptions about the raindrop size ...
S. L. Mason +7 more
doaj +1 more source
S-Band Doppler Wave Radar System [PDF]
Remote Sensing, 2017 In this paper, a novel shore-based S-band microwave Doppler coherent wave radar (Microwave Ocean Remote SEnsor (MORSE)) is designed to improve wave measurements. Marine radars, which operate in the X band, have been widely used for ocean monitoring because of their low cost, small size and flexibility.
Zezong Chen +5 more
openaire +3 more sources
Quarterly Journal of the Royal Meteorological Society, EarlyView.The routine assimilation of large numbers of observations collected from various observing systems is essential for the skill of modern numerical weather prediction (NWP). Assessment of the impact and influence of different observation types provides evidence guiding the design of future observation networks and the evaluation and improvement of ...
Guannan Hu +13 more
wiley +1 more source
A Micro-Doppler Modulation of Spin Projectile on CW Radar
ITM Web of Conferences, 2017 To obtain the spin speed of projectile effectively, a micro-Doppler modulation model of rotating projectile measured by continuous-wave radar (CW radar) is introduced.
Liu Zhi-Xue
doaj +1 more source