Results 11 to 20 of about 26,015,827 (334)
Spatiotemporal Acoustic Communication by a Single Sensor via Rotational Doppler Effect. [PDF]
Adv Sci (Weinh), 2023 A longstanding pursuit in information communication is to increase transmission capacity and accuracy, with multiplexing technology playing as a promising solution.
Zhang C, Jiang X, He J, Li Y, Ta D.
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Correcting the Doppler Effect [PDF]
Science & Philosophy, 2023 Christian Doppler, an Austrian physicist, described in 1842 the apparent change in frequency of a wave when motion of the source or the observer is involved. Named after him, this change in observational frequencies is known as the Doppler Effect.
Denis Thomas
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Journal of the Practice of Cardiovascular Sciences, 2019 CA Doppler described the doppler effect which was a shift in the frequency of light. This theory was later used for multiple applications in electromagnetics, astronomy, physics, aviation and health sciences.
Shivani Vashistha, Soumi Das
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Superlight inverse Doppler effect [PDF]
Nature Physics, 2018 It has long been thought1 that the inverse Doppler frequency shift of light2–13 is impossible in homogeneous systems with a positive refractive index.
Xi-Hang Shi +7 more
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Acoustic topological beam nonreciprocity via the rotational Doppler effect. [PDF]
Sci Adv, 2022 Reciprocity is a fundamental principle of wave physics related to time-reversal symmetry. Nonreciprocal wave behaviors have been pursued for decades because of their great scientific significance and tremendous potential applications.
Wang Q +5 more
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Remote Measurement of the Angular Velocity Vector Based on Vectorial Doppler Effect Using Air-Core Optical Fiber. [PDF]
Research (Wash D C), 2022 Rotational Doppler effect has made tremendous development in both theoretical and applied research over the last decade. Different from the inertial thinking of focusing on the scalar field dominated by helical phase light, we have revealed a vectorial ...
Wan Z +7 more
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Doppler effect tailoring: extra-red shift of structured light. [PDF]
Nat CommunDoppler effect is a universal phenomenon that describes the frequency shift of waves when interacting with moving targets. Recent studies suggest that the spatial structures of light beams would provide a modification of the group and phase velocities of
Wan Z, Tang Z, Wang J.
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The Doppler effect and similar triangles
Results in Physics, 2019 The Euclidean version of Doppler effect will be explained using the properties of similar triangles. These properties will serve to explain the relationship between frequencies of propagated wavefronts, number of wavefronts and the time of emitting and ...
Shukri Klinaku, Valbone Berisha
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Doppler effect described by the solutions of the Cattaneo telegraph equation. [PDF]
Acta Mech, 2021 The Cattaneo telegraph equation for temperature with moving time-harmonic source is studied on the line and the half-line domain. The Laplace and Fourier transforms are used.
Povstenko Y, Ostoja-Starzewski M.
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Developments in target micro-doppler signatures analysis: radar imaging, ultrasound and through-the-wall radar [PDF]
, 2013 Target motions, other than the main bulk translation of the target, induce Doppler modulations around the main Doppler shift that form what is commonly called a target micro-Doppler signature.
Soraghan, J. J. +5 more
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