Results 31 to 40 of about 26,015,827 (334)
Investigation into the selection of viewing configurations for three-component planar Doppler velocimetry measurements. [PDF]
, 2007 A method for the calculation of three orthogonal velocity components in planar Doppler velocimetry (PDV) using four or more measured velocity components (to the three typically used) is presented.
Nobes, David S. +2 more
core +3 more sources
Wireless Communications and Mobile Computing, 2022 The multipath fading and Doppler effect are well-known phenomena affecting channel quality in mobile wireless communication systems. Within this context, the emergence of reconfigurable intelligence surfaces (RISs) brings a chance to achieve this goal ...
Guilu Wu, Fan Li, Huilin Jiang
semanticscholar +1 more source
Resonant Doppler effect in systems with variable delay. [PDF]
Philos Trans A Math Phys Eng Sci, 2019 We demonstrate that a time-varying delay in nonlinear systems leads to a rich variety of dynamical behaviour, which cannot be observed in systems with constant delay.
Müller-Bender D, Otto A, Radons G.
europepmc +2 more sources
Analysis of misaligned optical rotational Doppler effect by modal decomposition.
Optics Express, 2021 The optical rotational Doppler effect (RDE) is closely related to the unique orbital angular momentum (OAM) carried by optical vortex, whose topological charge means the mode of OAM.
You Ding +6 more
semanticscholar +1 more source
Channel Estimation for Reconfigurable Intelligent Surface-Assisted Wireless Communications Considering Doppler Effect [PDF]
IEEE Wireless Communications Letters, 2020 In wireless systems aided by reconfigurable intelligent surfaces (RISs), channel state information plays a pivotal role in achieving the performance gain of RISs.
Shu Sun, Hang-Song Yan
semanticscholar +1 more source
The Evaluation of Light Conditions Influence and Corrections upon Doppler Blood Perfusion Imagining
Advances in Electrical and Electronic Engineering, 2016 The paper deals with theoretical and experimental research of the ambient light influence upon the measuring reliability of the perfusion maps by the laser Doppler method using the device PeriScan PIM 3.
Jan Kubicek +4 more
doaj +1 more source
Performance Evaluation of OTFS-NOMA Scheme for High Mobility Users
Sakarya University Journal of Computer and Information Sciences, 2023 Orthogonal Time Frequency Space (OTFS) is a promising approach which is widely employed in sixth generation (6G) wireless network systems. Because of its superior performance in high-mobility environments, OTFS modulation has received a lot of attention ...
Arif Başgümüş +2 more
doaj +1 more source
IEEE Communications Letters, 2021 The filterbank multicarrier (FBMC) waveform has better properties in spectral as compared to the Orthogonal Frequency Division Multiplexing (OFDM) and it exhibits good anti-interference performance.
Gang Qiao +4 more
semanticscholar +1 more source
Dual Illumination Planar Doppler Velocimetry using a Single Camera [PDF]
, 2003 A Planar Doppler Velocimetry (PDV) illumination system has been designed which is able to generate two beams, separated in frequency by about 600 MHz. This allows a common-path imaging head to be constructed, using a single imaging camera instead of ...
Nobes, David S. +7 more
core +1 more source
Lightweight and secure vehicle track verification scheme via broadcast communication channels
网络与信息安全学报, 2023 In intelligent transportation systems, it is crucial for smart vehicles to broadcast real-time vehicle track messages to coordinate driving decisions and ensure driving safety.However, attackers can manipulate vehicle tracks by modifying timestamps or ...
Zhiqiang NING, Yuanyuan WANG, Chi ZHANG, Lingbo WEI, Nenghai YU, Yue HAO
doaj +1 more source