Results 1 to 10 of about 188,698 (268)

Clutter Effect Investigation on Co-Polarized Chipless RFID Tags and Mitigation Using Cross-Polarized Tags, Analytical Model, Simulation, and Measurement

open access: yesSensors, 2023
Chipless radio frequency identification (RFID) technology is expected to replace barcode technology due to its ability to read in non-line-of-sight (NLOS) situations, long reading range, and low cost.
Jahangir Alam   +4 more
doaj   +1 more source

PSENet-based efficient scene text detection

open access: yesEURASIP Journal on Advances in Signal Processing, 2021
Text detection is a key technique and plays an important role in computer vision applications, but efficient and precise text detection is still challenging.
Guanglong Liao   +4 more
doaj   +1 more source

Object Recognition in High-Resolution Indoor THz SAR Mapped Environment

open access: yesSensors, 2022
Synthetic aperture radar (SAR) at the terahertz (THz) spectrum has emerging short-range applications. In comparison to the microwave spectrum, the THz spectrum is limited in propagation range but benefits from high spatial resolution.
Aman Batra   +5 more
doaj   +1 more source

A Mathematical Framework, Simulation, and Measurement of Harmonic Identification Systems

open access: yesIEEE Access, 2023
The main focus of this research paper is to develop a realistic mathematical framework to accurately characterize the performance of the harmonic identification system.
Jahangir Alam   +5 more
doaj   +1 more source

Indoor Large-Scale MIMO-Based RSSI Localization with Low-Complexity RFID Infrastructure

open access: yesSensors, 2020
Indoor localization based on unsynchronized, low-complexity, passive radio frequency identification (RFID) using the received signal strength indicator (RSSI) has a wide potential for a variety of internet of things (IoTs) applications due to their ...
Mohammed El-Absi   +5 more
doaj   +1 more source

Residual feedback suppression with extended model-based postfilters

open access: yesEURASIP Journal on Audio, Speech, and Music Processing, 2021
When designing closed-loop electro-acoustic systems, which can commonly be found in hearing aids or public address systems, the most challenging task is canceling and/or suppressing the feedback caused by the acoustic coupling of the transducers of such ...
Marco Gimm   +2 more
doaj   +1 more source

Millimeter-Wave Retro-Directive Frequency Coded Lens by Curved One-Dimensional Photonic Crystal Resonator

open access: yesIEEE Access, 2022
Innovating passive and chipless coded landmarks have recently emerged for high accuracy self-localization systems. Existing landmarks make use of the combination of retro-directive devices, corner reflectors and lenses, with a coding particle in order to
Ali Alhaj Abbas   +3 more
doaj   +1 more source

Indoor THz SAR Trajectory Deviations Effects and Compensation With Passive Sub-mm Localization System

open access: yesIEEE Access, 2020
In radar remote sensing, the Terahertz (THz) spectrum is presently being investigated worldwide with focus on short-range indoor and outdoor applications.
Aman Batra   +4 more
doaj   +1 more source

Adaptive coverage control for multi-USV system in complex environment with unknown obstacles

open access: yesInternational Journal of Distributed Sensor Networks, 2021
Aiming at the shortcomings of the existing control law based on the global information, this article studies the coverage problem of a given region in the plane using a team of USVs.
Yao Yao   +6 more
doaj   +1 more source

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