Results 61 to 70 of about 65,120 (254)

Portable Radar for Noncontact Heart Rate Monitoring and Estrus Detection in Dairy Cows

open access: yesIEEJ Transactions on Electrical and Electronic Engineering, EarlyView.
This study introduces a portable radar system for real‐time monitoring of respiratory and heart rates in dairy cows. It uses millimeter‐wave Frequency Modulated Continuous Wave (FMCW) radar to perform noncontact physiological sensing, reducing behavioral disturbance. The radar system's design prioritizes portability, cost‐effectiveness, and robustness,
Yingxiu Li   +7 more
wiley   +1 more source

An LTCC Interference Cancellation Device for Closely Spaced Antennas Decoupling

open access: yesIEEE Access, 2018
A compact interference cancellation device (ICD) offering a great decoupling for a pair of closely overlapped antennas and enhancing the throughput of the multi-input-multi-output (MIMO) system is proposed.
Ke-Wei Qian   +4 more
doaj   +1 more source

BER Performance of Uplink Massive MIMO With Low-Resolution ADCs

open access: yes, 2017
Massive multiple-input multiple-output (MIMO) is a promising technology for next generation wireless communication systems (5G). In this technology, Base Station (BS) is equipped with a large number of antennas.
Azizzadeh, Azad   +2 more
core   +1 more source

Antenna Selection and Placement Analysis of MIMO Radar Networks for Target Localization

open access: yesInternational Journal of Distributed Sensor Networks, 2014
A distributed MIMO radar network consists of a large number of transmitters/receivers to cover a sensing area of interest but under the constraint that the number of antennas is limited. The problem of selecting a subset of antennas at a sampling time to
Bin Sun   +3 more
doaj   +1 more source

Symbol‐Level GRAND‐Assisted Detection for Polar‐Coded Spatial Modulation in MIMO Systems

open access: yesInternational Journal of Communication Systems, Volume 39, Issue 7, 10 May 2026.
This research presents an integrated polar‐coded spatial modulation (PCSM) transceiver scheme for MIMO transmission over Rayleigh fading channels. The proposed architecture employs linear spatial signal processing for antenna and symbol estimation, followed by symbol‐level guessing random additive noise decoding (symbol‐level GRAND)–assisted detection ...
Abhilasha Gautam   +2 more
wiley   +1 more source

On the Design of Coherent Zero-Forcing Receiver for the Flat Fading MIMO Multiple-Access Channels [PDF]

open access: yesJournal of Electrical and Computer Engineering Innovations, 2019
Background and Objectives: Design of low-complexity receiver for space-time block coded (STBC) transmission over multiple-input multiple-output (MIMO) multiple-access channels has been subject of interest over the years.
M. Sheikh-Hosseini
doaj   +1 more source

Prognostics and Health Management in Polymer Electrolyte Fuel Cells: Current Trends, Challenges, and Future Directions

open access: yesFuel Cells, Volume 26, Issue 2, April 2026.
ABSTRACT Prognostics and health management are crucial for the reliability and lifetime assessment of polymer electrolyte fuel cells (PEFCs). Here, we review the current advances on this topic, focusing mainly on key degradation mechanisms and methodologies such as physics‐aware, data‐driven, and hybrid modeling approaches.
Farideh Abdollahi   +5 more
wiley   +1 more source

Unbroken Metal Rim MIMO Antenna Utilizing Antenna Clusters [PDF]

open access: yesIEEE Antennas and Wireless Propagation Letters, 2019
This letter presents an antenna system for mobile devices with an unbroken metal rim. By utilizing the characteristic mode analysis for the unbroken metal rim, efficient multiple-input–multiple-output operation can be achieved. The design is based on an antenna cluster technique that uses several coupled elements that are used to efficiently excite the
Hannula, Jari Matti   +5 more
openaire   +3 more sources

Power Quality‐Oriented Multiloop Design of Floating Wind Turbines Pitch Control

open access: yesWind Energy, Volume 29, Issue 4, April 2026.
ABSTRACT Floating offshore wind turbines (FOWTs) face inherent control limitations in above‐rated operating conditions due to right‐half‐plane zeros in the blade‐pitch‐to‐rotor‐speed dynamics, which restrict achievable control bandwidth and may lead to closed‐loop instability.
Marco De Pascali   +5 more
wiley   +1 more source

Measurement-Based Spatial Correlation and Capacity of Indoor Distributed MIMO System

open access: yesInternational Journal of Antennas and Propagation, 2013
Distributed MIMO (D-MIMO) system is one of the candidates for future wireless access networks. In this study, the spatial correlation and capacity in indoor D-MIMO system are presented.
Yan Zhang   +3 more
doaj   +1 more source

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