Results 41 to 50 of about 7,875,182 (223)

Development of a channel measurement system for Multiple-Input Multiple-Output (MIMO) applications [PDF]

, 2000
Recent investigations of Multiple-Input Multiple-Output (MIMO) architectures for wireless communication have aroused much interest in their potential to achieve high spectral efficiencies.
Mcnamara, DP, Karlsson, P, Beach, MA
core  

Broadband Near‐Field Computational Microwave Imaging Enabled by Nonperiodic Dispersive Unit‐Cell Loading in a Passive Metasurface

Advanced Electronic Materials, EarlyView.
A compact passive engineered surface converts changes in microwave frequency into many distinct illumination patterns, allowing nearby objects to be imaged without mechanical scanning, active tuning, or a large antenna array. Operating from 18 to 28 GHz, the single‐port system uses measured field patterns to reconstruct metallic targets and distinguish
Mohammed H. Arif, Firas Slewa Dawod, Henrik Jansen, Caner Kadıoğlu, Sayan Roy, Dirk Heberling, Renato Negra   +6 more
wiley   +1 more source

MIMO detection in analog VLSI [PDF]

, 2006
In this paper we propose an analog VLSI approach to maximum a posteriori (MAP) detection in multiple-input multiple-output (MIMO) systems. This detector can be seen as an extension of the well known analog decoding concept for error correcting codes, as ...
McNamara, DP, Soler Garrido, J, Piechocki, RJ, Maharatna, K   +3 more
core   +1 more source

An Energy Efficiency Maximization Scheme for the Wireless Information and Power Transfer System With MU-MIMO Uplink Access

IEEE Access, 2018
In this paper, we consider the maximization of energy efficiency in the wireless information and power transfer system with multi-user multiple-input/multiple-output (MU-MIMO) as its uplink multiple access technique.
Su Pan, Jiannan Chen, Yuqing Chen, Xixia Sun   +3 more
doaj   +1 more source

Perancangan Antena Mikrostrip Array Multiple Input Multiple Output (MIMO) 4 Elemen Dengan Slits dan Slots

Dinamika Rekayasa, 2022
Penelitian ini mengusulkan perancangan dan simulasi antena mikrostrip dengan metode array Multiple Input Multiple Output (MIMO) dengan 4 elemen dengan penambahan slits dan slots pada frekuensi kerja 3,5 GHz. Bahan substrat yang digunakan pada perancangan
Fahrul Solehudin, Yuli Kurnia Ningsih, Syah Alam   +2 more
doaj   +1 more source

Toward Complex In‐Car Environment Human–Vehicle Interactions Through Smart Glasses and sEMG‐Based Gesture Recognition

Advanced Intelligent Systems, EarlyView.
This study proposes a novel weighted random forest multimodal fusion method that combines smart glasses and sEMG data for in‐vehicle gesture interaction. It realizes stable performance in dim, occluded, and other constrained scenarios, providing feasible solutions and laying a foundation for universal human–machine interaction.
Wenbo Zhang, Wenting Wei, Kuang Li, Chuyuan Bian, Junkai Xu, Jianing Qiu, Yuxi Lu, Bin He, Shuo Jiang   +8 more
wiley   +1 more source

Modeling and parameter estimation for fractional large‐scale interconnected Hammerstein systems

Asian Journal of Control, EarlyView.
Abstract This paper addresses the challenge of modeling and identifying large‐scale interconnected systems exhibiting memory effects, hereditary properties, and non‐local interactions. We propose a fractional‐order extension of the Hammerstein architecture that incorporates Grünwald–Letnikov operators to capture complex dynamics through multiple ...
Mourad Elloumi, Omar Naifar, Imed Bouzida   +2 more
wiley   +1 more source

Multiple-Input Multiple-Output (MIMO) for multimode optical fiber communication channels [PDF]

, 2013
textThis thesis evaluates the benefits of Multiple Input Multiple Output (MIMO) techniques on the capacity of Multimode Fiber (MMF) links. Optical MMF MIMO systems take advantage of the spatial diversity present in the multiple propagating paths in ...
Zisman, Sagi
core  

Augmented MIMO: Body-Mounted Antennas for Tiny Wearable Devices

Applied Sciences
Multiple-input–multiple-output (MIMO), which uses multiple antennas at the transmitter and receiver, is now an essential technique for increasing communication capacity without widening the occupied radio bandwidth.
Akihito Noda
doaj   +1 more source

Synchronization‐Performance‐Oriented Frequency‐Domain Iterative Learning Control for Wafer and Reticle Stages

Asian Journal of Control, EarlyView.
ABSTRACT The synchronization accuracy between the wafer stage and reticle stage in lithography is critical to overlay and critical dimension uniformity. Existing iterative learning control (ILC) methods indirectly optimize synchronization via time‐domain errors, failing to balance low‐frequency tracking accuracy and high‐frequency noise suppression ...
Xin Zhou, Yuejing Qi, Zhipeng Wu, Wei Qi, Tianwei Xu   +4 more
wiley   +1 more source