Results 41 to 50 of about 26,015,827 (334)
Multistatic human micro-Doppler classification of armed/unarmed personnel [PDF]
, 2015 Classification of different human activities using multistatic micro-Doppler data and features is considered in this paper, focusing on the distinction between unarmed and potentially armed personnel.
Griffiths, Hugh +8 more
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Robust method for ship recognition based on ISAR imaging using 3D model
The Journal of Engineering, 2019 This study develops a robust method for ship target recognition, based on inverse synthetic aperture radar (ISAR) image matching with the template of 3D model.
Sudao D. Xie, M.Y. Pan, D.S. Li
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Open Physics, 2021 In a microscopic model of the photoelectric effect, it becomes clear that the conservation of energy is exclusively determined by Doppler shift processes, i.e., the whole energy of the photon vanishes by means of Doppler redshifts.
Schultheiss Christoph
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Moving target detection based on velocity compensation methods in a coherent continuous wave lidar
The Journal of Engineering, 2019 Light Detection and Ranging (lidar) technology has been applied in military and civil areas and shows great potential. However, in coherent lidar detection, significant Doppler Effect and velocity uncertainty result a bad influence on moving target ...
Huixin Huang +3 more
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Sensors, 2021 Connected objects are deployed all over the world. Thus, they are contributing to improving communications. In urban areas, technological challenges are gradually being overcome, and advances in this area are exponential.
Laurent Ferrier +3 more
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The influence of LEO satellite Doppler effect on LoRa modulation and its solutio
, 2021 In order to explore the adaptability of LoRa technology in low Earth orbit satellite communications, this paper studies the influence of the Doppler effect on LoRa modulation in satellite-to-Earth radio channel, and finds that the larger the LoRa ...
Cong Cao, Shenghua Zhai
semanticscholar +1 more source
Teaching the Doppler effect in astrophysics [PDF]
, 2017 \ud \ud The Doppler effect is a shift in the frequency of waves emitted from an object moving relative to the observer. By observing and analysing the Doppler shift in electromagnetic waves from astronomical objects, astronomers gain greater insight into
Cowley, Michael, Hughes, Stephen W.
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A New Approach for Testing Fetal Heart Rate Monitors
Sensors, 2020 In this paper, a new approach for the periodical testing and the functionality evaluation of a fetal heart rate monitor device based on ultrasound principle is proposed.
Daniele Bibbo +10 more
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Известия высших учебных заведений России: Радиоэлектроника, 2018 Narrowband approximation of Doppler effect by a frequency shift is inappropriate for some problems of radiolocation, hydro acoustics or passive location.
I. V. Gogolev
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Errors of UAV Autonomous Landing System for Different Radio Beacon Configurations [PDF]
TransNav, 2019 At the turn of the 20th and 21st centuries, development of microelectronics and microwave techniques allowed for minimization of electronic devices and systems, and the use of microwave frequency bands for modern radio communication systems. On the other
Jan Kelner, Cezary Ziolkowski
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