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Science, 2013
Detection of an object's rotation by exploiting the orbital angular momentum of light may find applications in remote sensing and astronomy. [Also see Report by Lavery et al. ]
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Detection of an object's rotation by exploiting the orbital angular momentum of light may find applications in remote sensing and astronomy. [Also see Report by Lavery et al. ]
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Doppler effect in the time-domain beamforming for rotating sound source identification.
Journal of the Acoustical Society of America, 2020Identifications of rotating sound sources are of interest in many industrial applications. The most famous beamforming to identify rotating sound source is the time-domain ROSI beamforming proposed by Sijtsma et al. (AIAA 2001-2167, 2001).
Wei Ma, Ce Zhang
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Equivalence of the Doppler effect, relativistic Doppler effect and scattering effect
Physics Letters A, 1970Abstract On the basis of an electromagnetic plane wave scattered by an electron, the relativistic Doppler effect is demonstrated equivalent to a two step Doppler effect. Further experimental verification for the conservation law according to the Compton-Debye theory is also urged.
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Research on Detection Method of UAV Based on micro-Doppler Effect
Cybersecurity and Cyberforensics Conference, 2020With the wide application of small UAV, its negative effects begin to appear gradually. Therefore, it is of great significance to detect UAV. Because the micro Doppler effect of objects is different under the radar, the UAV can be detected by the time ...
Shuo Li +3 more
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Marine Vibrators And The Doppler Effect
Offshore Technology Conference, 1988ABSTRACT Marine seismic data acquired with a moving vibrator suffer phase dispersion caused by Doppler shifting of the source sweep function. The dispersion, which can be as large as several hundred degrees, is a function of frequency, ship speed, sweep type, and the time dips of reflection events.
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2020
In every advanced course on physics the Doppler, effect is usually the standard example for demonstrating the fundamental physical differences between the propagation of elastic waves through a mechanical medium and the propagation of electromagnetic waves through our physical space.
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In every advanced course on physics the Doppler, effect is usually the standard example for demonstrating the fundamental physical differences between the propagation of elastic waves through a mechanical medium and the propagation of electromagnetic waves through our physical space.
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Influence of lateral misalignment on the optical rotational Doppler effect.
Applied Optics, 2019The discovery of the optical rotational Doppler effect associated with orbital angular momentum of light paves a new way to detect the rotational speed of spinning objects.
Song Qiu +6 more
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1991
The Doppler effect, named for Christian Doppler (ca. 1842), has tremendous importance for science and technology. Thanks to it, air traffic controllers can distinguish among objects moving in the line of sight; on the ground, speeding cars can be identified before serious accidents occur; and in space, the velocities of the stars and the rotations and ...
W. Schlosser +2 more
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The Doppler effect, named for Christian Doppler (ca. 1842), has tremendous importance for science and technology. Thanks to it, air traffic controllers can distinguish among objects moving in the line of sight; on the ground, speeding cars can be identified before serious accidents occur; and in space, the velocities of the stars and the rotations and ...
W. Schlosser +2 more
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[Doppler effect in cardiology. Continuous Doppler, pulsed Doppler, Doppler color].
Presse medicale (Paris, France : 1983), 1989Echocardiography has contributed to the exploration of the heart by providing much information, and it has even given rise to new semiological concepts. However, abnormalities of intracardial blood flow, notably shunts and regurgitations, could only be diagnosed indirectly from their effects on cardiac cavities.
Y, Houdas +3 more
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1987
The velocity of electromagnetic radiation in a vacuum is a constant which depends only upon the magnetic permeability and electrostatic permittivity of free space. This velocity is independent of any movement of the source or observer, but the same is not true of the wavelength and frequency of radiation.
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The velocity of electromagnetic radiation in a vacuum is a constant which depends only upon the magnetic permeability and electrostatic permittivity of free space. This velocity is independent of any movement of the source or observer, but the same is not true of the wavelength and frequency of radiation.
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