Results 51 to 60 of about 113,240 (161)

Micro-Doppler Effect and Sparse Representation Analysis of Underwater Targets. [PDF]

Sensors (Basel), 2023
Lu Y, Kou S, Wang X.
europepmc   +1 more source

The Doppler effect

, 2014
This presentation of 7 animations demonstrates the Doppler effect, which is used by astronomers to learn about the motions of stars, and to find planets. The principle is simple - in fact, even the animations consist only of expanding circles - but the effect is impressive. http://starguyspeaks.wordpress.com/2014/10/12/on-the-doppler-effect/
  +5 more sources

Spatiotemporal Acoustic Communication by a Single Sensor via Rotational Doppler Effect. [PDF]

Adv Sci (Weinh), 2023
Zhang C, Jiang X, He J, Li Y, Ta D.
europepmc   +1 more source

Rotating axis measurement based on rotational Doppler effect of spliced superposed optical vortex. [PDF]

Nanophotonics, 2023
Zhu X, Qiu S, Liu T, Ding Y, Tang R, Liu Z, Chen X, Ren Y.   +7 more
europepmc   +1 more source

Evaluation of Doppler Effect Error Affecting the Radio Altimeter Altitude Measurements. [PDF]

Sensors (Basel), 2022
Češkovič M, Kurdel P, Gecejová N, Labun J, Laššák M.   +4 more
europepmc   +1 more source

Performance Evaluation of OTFS over EVA, ETU, and UAV Channels with Delay Doppler Grid Variations for High-Mobility Communications

Sistemasi: Jurnal Sistem Informasi
Orthogonal Time Frequency Space (OTFS) is a modulation scheme designed to improve the reliability of wireless communications in high-mobility environments, where transmission performance is significantly affected by Doppler effects.
Muhammad Idrus Syaban, Endah Setyowati
doaj   +1 more source

Acoustic topological beam nonreciprocity via the rotational Doppler effect. [PDF]

Sci Adv, 2022
Wang Q, Zhou Z, Liu D, Ding H, Gu M, Li Y.   +5 more
europepmc   +1 more source

Remote Measurement of the Angular Velocity Vector Based on Vectorial Doppler Effect Using Air-Core Optical Fiber. [PDF]

Research (Wash D C), 2022
Wan Z, Liang Y, Zhang X, Tang Z, Fang L, Ma Z, Ramachandran S, Wang J.   +7 more
europepmc   +1 more source

A 3D Time-Variant Non-Stationary Hybrid Channel Model for Massive MIMO Systems

International Journal of Information and Communication Technology Research, 2019
This paper presents a novel three-dimensional (3D) time-variant hybrid channel model for massive multiple input multiple output (M-MIMO) wireless systems.
Mohammad Mehdi Tamaddondar
doaj  

Analysis of Multi-Path Fading and the Doppler Effect for Reconfigurable-Intelligent-Surface-Assisted Wireless Networks. [PDF]

Entropy (Basel), 2022
Wu G.
europepmc   +1 more source