Results 11 to 20 of about 188,698 (268)

An Information-Theoretic Approach to the Chipless RFID Tag Identification

open access: yesIEEE Access, 2019
In this paper, we focus on the chipless radio-frequency identification (RFID), where the tag information bits are encoded by the peak/notch pattern appeared in the frequency spectrum of the radar cross section (RCS) of the tag. In particular, we restrict
Yanling Chen   +3 more
doaj   +1 more source

Fast and precise underwater transducer characterisation utilising adaptive system identification

open access: yesIET Radar, Sonar & Navigation, 2023
Characterising underwater acoustic transducers is essential to optimal signal processing in sound navigation and ranging systems. Precise characterisation allows for equalisation of the input and output hardware, resulting in improved performance of the ...
Bastian Kaulen, Gerhard Schmidt
doaj   +1 more source

Frequency-Coded Chipless RFID Tags: Notch Model, Detection, Angular Orientation, and Coverage Measurements

open access: yesSensors, 2020
This paper focuses on the frequency coded chipless Radio Frequency Identification (RFID) wherein the tag’s information bits are physically encoded by the resonators’ notch position which has an effect on the frequency spectrum of the ...
Jahangir Alam   +4 more
doaj   +1 more source

High-Accuracy Indoor Localization Based on Chipless RFID Systems at THz Band

open access: yesIEEE Access, 2018
Highly accurate indoor localization based on significantly low complex infrastructure has recently gained great interest for a variety of innovative location-based applications.
Mohammed El-Absi   +5 more
doaj   +1 more source

A Recognition Method for Multi-Radial-Distance Event of Φ-OTDR System Based on CNN

open access: yesIEEE Access, 2021
This paper proposes a multi-radial-distance event classification method based on deep learning. To the best of our knowledge, this is the first time that the $\Phi $ -OTDR can tell how far the target event from the sensing fiber is through deep learning
Yi Shi   +3 more
doaj   +1 more source

Full-Duplex Femto Base-Station With Antenna Selection: Experimental Validation

open access: yesIEEE Access, 2019
Full-Duplex (FD) is an emerging technology that allows the communication device to use the same frequency to simultaneously transmit and receive. The cancellation of the high power Self-Interference (SI) is the main challenge in FD systems.
Nidal Zarifeh   +3 more
doaj   +1 more source

Motor Imagery Classification Based on a Recurrent-Convolutional Architecture to Control a Hexapod Robot

open access: yesMathematics, 2021
Advances in the field of Brain-Computer Interfaces (BCIs) aim, among other applications, to improve the movement capacities of people suffering from the loss of motor skills. The main challenge in this area is to achieve real-time and accurate bio-signal
Tat’y Mwata-Velu   +5 more
doaj   +1 more source

Dynamic Phase Demodulation Algorithm for Phase-Sensitive OTDR With Direct Detection

open access: yesIEEE Access, 2020
A dynamic phase demodulation algorithm for direct detection Φ-OTDR is proposed and experimentally demonstrated. It offers a way for single channel direct detection Φ-OTDR, which is the simplest and most cost-effective structure, to realize ...
Yi Shi   +4 more
doaj   +1 more source

Path Loss Modeling of RFID Backscatter Channels With Reconfigurable Intelligent Surface: Experimental Validation

open access: yesIEEE Access, 2023
In the realm of radio frequency identification (RFID) technology, the integration of reconfigurable intelligent surfaces (RISs) has opened up new possibilities for real-time remote data capturing and seamless connectivity.
Mohammed El-Absi   +8 more
doaj   +1 more source

Imaginary Finger Movements Decoding Using Empirical Mode Decomposition and a Stacked BiLSTM Architecture

open access: yesMathematics, 2021
Motor Imagery Electroencephalogram (MI-EEG) signals are widely used in Brain-Computer Interfaces (BCI). MI-EEG signals of large limbs movements have been explored in recent researches because they deliver relevant classification rates for BCI systems ...
Tat’y Mwata-Velu   +4 more
doaj   +1 more source

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