Real micro-Doppler parameters extraction of spinning targets based on rotating interference antenna

Z Wang, Y Chen, H Yuan, Y Luo, Q Zhang - Remote Sensing, 2022 - mdpi.com
Micro-Doppler is a unique characteristic of targets with micro-motions, which can provide
significant information for target classification and recognition. However, the monostatic …

Prototyping of 40 GHz band orbital angular momentum multiplexing system and evaluation of field wireless transmission experiments

Y Yagi, H Sasaki, D Lee - IEEE Access, 2022 - ieeexplore.ieee.org
We are developing a spatial multiplexing technique based on orbital angular momentum
(OAM) that is capable of 1 Tbit/s point-to-point wireless transmissions for the sixth generation …

Excitation of helical shape argon atmospheric pressure plasma jet using RF pulse modulation

M Mahreen, G Veda Prakash, S Kar, D Sahu… - Journal of Applied …, 2021 - pubs.aip.org
The article reports the excitation of a helical argon atmospheric pressure plasma jet using a
pulse-modulated 13.56 MHz radio frequency (RF) power source. This helical structure is …

Spectral and energy efficiency of line-of-sight OAM-MIMO communication systems

R Chen, H Zhou, WX Long, M Moretti - China Communications, 2020 - ieeexplore.ieee.org
Not only high spectral efficiency (SE) but also high energy efficiency (EE) are required for
future wireless communication systems. Radio orbital angular momentum (OAM) provides a …

Inverse‐Design Methodology for Generating Twisted Ultrasonic Motor in Free Space

C Zhang, J He, X Jiang, D Ta - Advanced Intelligent Systems, 2023 - Wiley Online Library
A new level of freedom is made possible by orbital angular momentum (OAM), which can be
used to create twisted ultrasonic motors for particle manipulation and control. For steady and …

Hyperparameter tuning of optical neural network classifiers for high-order Gaussian beams

S Watanabe, T Shimobaba, T Kakue, T Ito - Optics Express, 2022 - opg.optica.org
High-order Gaussian beams with multiple propagation modes have been studied for free-
space optical communications. Fast classification of beams using a diffractive deep neural …

Active-spiral Fresnel zone plate with tunable focal length for airborne generation of focused acoustic vortices

RD Muelas-Hurtado, JL Ealo… - Applied Physics …, 2020 - pubs.aip.org
We present a simple and efficient method for generating focused acoustic vortices in air over
a wide range of ultrasonic frequencies by means of an Active-Spiral Fresnel Zone Plate. An …

Micro‐motion parameter extraction of rotating target based on vortex electromagnetic wave radar

H Yuan, Y Luo, YJ Chen, J Liang… - IET Radar, Sonar & …, 2021 - Wiley Online Library
The vortex electromagnetic (EM) wave radar has the potential to obtain more accurate micro‐
motion parameters for target recognition. However, with the existing algorithms of micro …

High-power orbital angular momentum beam generation using adaptive control system based on mode selective photonic lantern

Y Lu, Z Jiang, Z Chen, M Jiang, J Yang… - Journal of Lightwave …, 2023 - ieeexplore.ieee.org
We demonstrate an all-fiber adaptive spatial control system with a mode selective photonic
lantern as the core device to generate orbital angular momentum (OAM) modes. A 3× 1 …

Synthesis of orbital angular momentum antennas for target localization

GM Battaglia, T Isernia, R Palmeri… - Radio Science, 2023 - ieeexplore.ieee.org
The exploitation of Orbital Angular Momentum (OAM) is proposed to design circular-support
continuous aperture distributions and concentric-ring arrays for target-localization …