Cable force measurement system design and experiment based on heterodyne laser Doppler vibrometer
Dianzi Jishu Yingyong, 2020 Cable force of bridge cable is an important standard to measure the safety of bridge. According to the working principle of laser Doppler vibration measurement, a small and high-precision laser Doppler vibration measurement system is designed and applied
Li Dongming +5 more
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Non-Cosmological, Non-Doppler Relativistic Frequency Shift over Astronomical Distances
Dynamics, 2022 We investigate in detail an apparently unnoticed consequence of special relativity. It consists in time dilation/contraction and frequency shift for emitted light affecting accelerated reference frames at astronomical distances from an inertial observer. The frequency shift is non-cosmological and non-Doppler in nature.
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Innovative Multi-Target Estimating with Clutter-Suppression Technique for Pulsed Radar Systems
Sensors, 2020 Linear frequency modulation (LFM) waveforms have high Doppler-shift endurance because of the relative wide modulation bandwidth to the Doppler variation. The Doppler shift of the moving objects, nevertheless, constantly introduces obscure detection range
Jo-Yen Nieh, Yuan-Pin Cheng
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Sensors, 2012 The electro-mechanical characteristics of piezoelectric actuators which have being driven are evaluated in this paper. The force generated by actuators is measured as an inertial force of a corner cub prism which is attached to the actuators. The Doppler
Hongzhi Jia +5 more
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The design of multiple orthogonal signals based on auto-encoder optimization network
Frontiers in Marine ScienceAs an important part of active sonar, transmitted signals have a great influence on the performance of ocean exploration, however, in the actual environment, due to the existence of the Doppler frequency shift, the traditional transmitted signals may ...
Binkai Liang, Mingzhi Wang, Sen Zhang
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Doppler Frequency-Shift Information Processing in WOx -Based Memristive Synapse for Auditory Motion Perception. [PDF]
Adv Sci (Weinh), 2023 Zeng T +8 more
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Channel characteristics analysis of train-to-train wireless communication
Journal of Measurement Science and Instrumentation, 2021 Train-to-train（T2 T） communication can provide protection for existing train-to-ground private network communication, and its channel characteristics directly affect the application of upper-layer communication technologies.
GAO Yunbo +5 more
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The Space-Based Altimeter Echo-Signal when Doppler Scattering is taken Into Account
Известия высших учебных заведений России: Радиоэлектроника, 2017 In the analytical approximation of time dependent average power of a satellite altimeter echo-signal (power profile) the Doppler scattering of individual specular point responses is usually neglected.
D. S. Borovitsky +3 more
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Doppler effect and frequency-shift in optics
, 2004 A critical review of frequency-shift phenomena a la Doppler effect is presented. The importance of Fermi's theory of 1932 is pointed out, and it is argued that there exists a gap in our understanding of this phenomena at a fundamental level. Alternative mechanism in terms of photon number oscillations is suggested for polarization changing experiments.
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Extended Kalman Filtering of Satellite Doppler Tracking Data and IT¡¯S Application to Orbit Determination Problems [PDF]
Journal of Astronomy and Space Sciences, 1995 Using a directional antenna, the Doppler effect of satellites can be detected and the orbital elements can be obtained by the Extended Kalman Filter with the observed frequency shift data. We obtained the orbital elements of NOAA-11 by the application of
Dong-Kyu Kim, Kyu-Hong Choi
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