Results 151 to 160 of about 384,291 (294)

Radial TRASE: 2D RF encoding through mechanical rotation and active digital decoupling

open access: yesMagnetic Resonance in Medicine, EarlyView.
Abstract Purpose Two‐dimensional (2D) transmit array spatial encoding (TRASE) previously required four radiofrequency fields; however, interactions between transmit (Tx) array elements caused significant challenges for 2D imaging. Here, we present a low‐cost, 2D radial encoding scheme (Radial TRASE) using a simplified two‐coil array.
Christopher J. Sedlock   +3 more
wiley   +1 more source

Prioritized Real‐Time UAV‐Based Vessel Detection for Efficient Maritime Search

open access: yesJournal of Field Robotics, EarlyView.
ABSTRACT Real‐time vessel detection in maritime environments is crucial for diverse applications requiring speed and accuracy. Static camera views often introduce blind spots, compromising detection efficiency. This paper proposes a novel, real‐time UAV‐based system that uses a dynamic camera control strategy to address this limitation.
Lyes Saad Saoud   +6 more
wiley   +1 more source

Fast module mapping and placement for datapaths in FPGAs [PDF]

open access: bronze, 1998
Timothy J. Callahan   +3 more
openalex   +1 more source

Amplifier‐Based Programmable Metasurface for Bidirectional Full Polarization Enhancement

open access: yesSmall Structures, EarlyView.
An amplifier‐based programmable metasurface is proposed to enhance bidirectional propagation of various polarized electromagnetic waves. The metasurface incorporates patch scatterers, reconfigurable phase shifters, and negative resistors to manipulate wave direction and improve wireless communication coverage. The Class‐E reflection amplifier minimizes
Xin Wang   +5 more
wiley   +1 more source

Computer‐Vision‐Assisted Intelligent Wireless Communication with Programmable Metasurface for Self‐Adaptive Moving‐Target Tracking and Signal Enhancement

open access: yesSmall Structures, EarlyView.
To achieve adaptive beam tracking and signal enhancement for the moving user indoors and outdoors, monocular cameras and computer‐vision algorithms based on a convolutional neural network are introduced to recognize the user's position and posture.
Kui Tang   +8 more
wiley   +1 more source

Real-time network communication using 8B10B coding for mechatronics control

open access: yesNihon Kikai Gakkai ronbunshu
High-speed and high-precision actuator control is required for industrial manufacturing equipment. In such systems, the control operation cycle needs to be shortened to 100 μs or less. Recently, the quantity of sensors and actuators is increasing because
Kazushi YAMASHINA   +4 more
doaj   +1 more source

On two-step routing for FPGAS [PDF]

open access: bronze, 1997
Guy Lemieux   +2 more
openalex   +1 more source

Precise Measurement of Complex Coefficient Filters by Using Square Waves†

open access: yesIEEJ Transactions on Electrical and Electronic Engineering, EarlyView.
Usually, the frequency characteristics of the complex filter can be examined by applying a pair of quadrature sinusoidal waves (cosωt$$ \cos \omega t $$ and sinωt$$ \sin \omega t $$) to a FUT (filter under test). While this method is recognized for its accuracy, it requires two sinusoidal test signals with tightly matched amplitudes and a strict 90°$$ {
Kazuhiro Shouno   +2 more
wiley   +1 more source

The Runge Kutta-4 based 4D Hyperchaotic System Design for Secure Communication Applications

open access: yesChaos Theory and Applications, 2020
It is a common fact that warranting high security is the leading isssue in the communication systems. Since there will always be possible threats in attacking the communication channels, the trends to determine a suitable method to quarantee high ...
Murat Alçın
doaj  

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