Results 41 to 50 of about 77,439 (303)

Principal component analysis and perturbation theory–based robust damage detection of multifunctional aircraft structure [PDF]

open access: yes, 2013
A fundamental problem in structural damage detection is to define an efficient feature to calculate a damage index. Furthermore, due to perturbations from various sources, we also need to define a rigorous threshold whose overtaking indicates the ...
HAJRYA, Rafik, MECHBAL, Nazih
core   +5 more sources

Fast Adaptive Beamforming with Smart Antenna for Radio Frequency Repeater

open access: yesMATEC Web of Conferences, 2016
We present a fast adaptive beamforming null algorithm with smart antenna for Radio Frequency Repeater (RFR). The smart antenna system is realized by a Direction Of Arrival (DOA) Estimator, whose output is used by an adaptive beamforming algorithm to ...
Wang Chaoqun, Wei Guohua, Wang Teng
doaj   +1 more source

Adaptive antennas at the mobile and base stations in an OFDM/TDMA system [PDF]

open access: yes, 2001
In recent years, several smart antenna systems have been proposed and demonstrated at the base station (BS) of wire-less communications systems, and these have shown that significant system performance improvement is possible.
Cheng, RSK, Wong, KK
core   +1 more source

Hardware implementation of smart antenna systems [PDF]

open access: yesAdvances in Radio Science, 2006
Smart antenna systems attract a lot attentions now and believably more in the future, as it can increase the capacity of mobile communication systems dramatically.
H. Wang, M. Glesner
doaj  

Development of Monitoring Methods for a GPS based Smart Antenna System

open access: yesACI Avances en Ciencias e Ingenierías, 2013
One of the key parameters in the processing system of a smart antenna system is the direction of arrival of the signal of interest (DOA). DOA’s estimation traditionally performed spectral analysis on the signal received by the antenna array ...
Francisco Cuesta, René P. Játiva E.
doaj   +1 more source

Vulnerability analysis of satellite-based synchronized smart grids monitoring systems [PDF]

open access: yes, 2014
The large-scale deployment of wide-area monitoring systems could play a strategic role in supporting the evolution of traditional power systems toward smarter and self-healing grids. The correct operation of these synchronized monitoring systems requires
Ahmed faheem Zobaa   +19 more
core   +1 more source

Harnessing Fungal Biowelding for Constructing Mycelium‐Engineered Materials

open access: yesAdvanced Engineering Materials, EarlyView.
Mycelium‐bound composites (MBCs) offer low‐carbon alternatives for construction, yet interfacial bonding remains a critical challenge. This review examines fungal biowelding as a biocompatible adhesive, elucidating mycelium‐mediated interfacial mechanisms and their role in material assembly. Strategies to optimize biowelding are discussed, highlighting
Xue Brenda Bai   +2 more
wiley   +1 more source

Model of Handover and Traffic Based on Cellular Geometry with Smart Antenna

open access: yesInternational Journal of Antennas and Propagation, 2014
Based on the application of smart antennas in cellular mobile communications, this paper introduces the impact of the width of the antenna beams playing on the dwell time probability density function in cellular geometry with smart antenna. The research
Zufan Zhang, Jie Zhang, Shaohui Sun
doaj   +1 more source

THE FUZZY LOGICAL CONTROLLER BASED ENERGY STORAGE AND CONSERVATION MODEL TO ACHIEVE MAXIMUM ENERGY EFFICIENCY IN MODERN 5G COMMUNICATION

open access: yesICTACT Journal on Communication Technology, 2022
Energy conservation and energy efficiency for smart antenna design is the reduction of energy consumption per unit of service or product in 5G Communication without reducing production quality and quantity.
B. Gopi, G. Ramesh, J. Logeshwaran
doaj   +1 more source

On the Lightweight Potential of Laser Additive Manufactured NiTi Triply Periodic Minimal Sheet Lattices

open access: yesAdvanced Engineering Materials, EarlyView.
This study explores the lightweight potential of laser additive‐manufactured NiTi triply periodic minimal surface sheet lattices. It systematically investigates the effects of relative density and unit cell size on surface quality, deformation recovery, compression behavior, and energy absorption.
Haoming Mo   +3 more
wiley   +1 more source

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