Results 81 to 90 of about 2,126 (235)

EMI Characterization from GaN Power Amplifier Nonlinearity Test for 16-QAM 5G Communication [PDF]

Radioengineering
Today, the anywhere, anyhow and anytime application scenarios of 5G system force designer to challenge on electromagnetic interference (EMI) requirements.
H. Du, F. Wan, V. Mordachev, E.Sinkevich, X. Chen, B. Ravelo   +5 more
doaj  

Enhanced Voltage Sensorless Control for a PWM Converter with DSOGI-FLL Under Grid Disturbances

Energies
This paper presents Enhanced Voltage Sensorless Control for PWM converter with DSOGI-FLL under grid disturbances. Even without grid voltage sensors, the proposed method accurately estimates the grid angle and voltage, which are necessary for power ...
Seung-Pyo Kang, Dong-Youn Kim, Jang-Mok Kim   +2 more
doaj   +1 more source

Scalable Large Field‐of‐view 3D Photoacoustic Ultrasound Imaging With Digital Multiplexing for Human Extremities

Laser &Photonics Reviews, EarlyView.
A digitally multiplexed, large‐aperture photoacoustic and ultrasound imaging architecture is presented to overcome the fundamental limited‐view artifact inherent in conventional arrays. By significantly broadening the structural detection coverage, this scalable platform enables high‐fidelity 3D visualization of human extremities within a single ...
Sinyoung Park, Minsik Sung, Hyunhee Kim, Kijong Lee, Joongho Ahn, Eun‐Yeong Park, Sungsik Park, Hyung Ham Kim, Chulhong Kim   +8 more
wiley   +1 more source

Reconstruction of OFDM Signals Using a Dual Discriminator CGAN with BiLSTM and Transformer

Sensors
Communication signal reconstruction technology represents a critical area of research within communication countermeasures and signal processing.
Yuhai Li, Youchen Fan, Shunhu Hou, Yufei Niu, You Fu, Hanzhe Li   +5 more
doaj   +1 more source

A Sub‐Microsecond Switch Enabling SWIFT 23Na Imaging at 10.5 T

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose To enable sodium SWIFT imaging, which is a zero‐echo time imaging technique, at ultra‐high magnetic fields through the development of custom electronics hardware, and to showcase this capability with in vivo imaging results. Methods The custom hardware developed consists of a high‐speed optical trigger with 10 ns resolution, an in‐bore
Russell L. Lagore, Simon Schmidt, Edward J. Auerbach, Naoharu Kobayashi, Christoph Schildknecht, Steen Moeller, Elnaz Mahmoudi Mahmoudalilou, Štefan Zbýň, Jutta Ellermann, Gregor Adriany, Gregory J. Metzger   +10 more
wiley   +1 more source

1.12Tbps-16QAM Uncompensated Long-Haul Transmission Employing a New Self-Oscillating Optical Frequency Comb Generator Both at Transmitter and Receiver

IEEE Photonics Journal
A new optoelectronic oscillator (OEO) is implemented for a novel self-sustained flat-topped self-oscillating optical frequency comb generator (SO-OFCG), which can be deployed in terahertz optical transmission.
Rahat Ullah, Sibghat Ullah, Shuaidong Chen, Ahmad Almadhor, Abdullah A. Al-Atawi, Ren Jianxin, Maqbool Khan, Giovanni Pau   +7 more
doaj   +1 more source

Discrete Implementations Modify the Intuition of Final Set Adjustment in Barrier Function Based Control

International Journal of Robust and Nonlinear Control, EarlyView.
ABSTRACT This paper establishes an implementation‐aware framework for Barrier Function Adaptation (BFA) and shows that discrete‐time realizations fundamentally alter the logic of final‐set adjustment. In particular, sufficient conditions are derived to preserve the key benefits of BFA (predefined performance, gain adaptation with uncertain perturbation
Luis Ovalle, Andrés González, Leonid Fridman, Meléndez Alfredo   +3 more
wiley   +1 more source

Enhancing Reference Tracking in Induction Motor Drives: A Hybrid Model Predictive Control and Artificial Neural Network Approach

International Journal of Robust and Nonlinear Control, EarlyView.
ABSTRACT Induction motors (IMs) are widely used in industry for their robustness and cost‐effectiveness, yet their nonlinear and multivariable dynamics pose significant challenges for high‐performance speed control. Model Predictive Control (MPC) is a well‐established solution but suffers from limitations related to model accuracy and parameter ...
Asier del Rio, Oscar Barambones, Eneko Artetxe, Jokin Uralde, Isidro Calvo   +4 more
wiley   +1 more source

CLEAR Interference Cancellation in a Wideband Dual‐Channel Receiver for Independent Satellite Multi‐Connectivity Links

International Journal of Satellite Communications and Networking, EarlyView.
ABSTRACT In this paper, the correlation learning estimation and adaptive reduction (CLEAR) of interference, an adaptive, blind and transparent interference compensation method applied in a wideband dual‐channel receiver, is studied for a pair of independent satellite multi‐connectivity links, using the same carrier frequency and signal bandwidth in use
Svilen Dimitrov
wiley   +1 more source

A Prototype of 20GHz-Low-Complexity Digital Beamforming Transmitter Antenna Module for FR3 Band Using Direct Digital RF Technology in DSoF Configuration

IEEE Access
To miniaturize the digital beamforming (DBF) transmitter module, 1-bit bandpass delta-sigma (BP-DS) direct digital RF transmitter using delta-sigma-over-fiber (DSoF) link by 10GE SFP (Small Form Factor Pluggable) optical module has been studied. However,
Junhao Zhang, Koki Furuuchi, Noriharu Suematsu   +2 more
doaj   +1 more source