Results 271 to 280 of about 61,990 (319)

TransAoA: Transformer-Based Angle of Arrival Estimation for BLE Indoor Localization

IEEE Transactions on Instrumentation and Measurement
Bluetooth low-energy (BLE) technology, characterized by its low-energy consumption, cost-effectiveness, and scalability, has gained prominence as a viable solution for indoor localization within industrial contexts.
Wei Wu, Didi Zhou, Leidi Shen, Zhiheng Zhao, Congbo Li, George Q. Huang   +5 more
semanticscholar   +1 more source

Indoor Visible Light Localization Algorithm with the Optimal Optical Angle-of-Arrival Estimator

Information and Communication Technology Convergence, 2021
Visible light communication (VLC) has been widely used in many applications because it can support lighting and communication simultaneously. Based on VLC, many attractive localization technologies are proposed, especially angle-of-arrival (AOA ...
Yong Yu, Bingcheng Zhu, Zaichen Zhang, Lei Wang, Liang Wu, J. Dang   +5 more
semanticscholar   +1 more source

Determining angle of arrival of radio-frequency fields using subwavelength, amplitude-only measurements of standing waves in a Rydberg atom sensor

Journal of Applied Physics
Deep subwavelength radio-frequency (RF) imaging with atomic Rydberg sensors has overcome fundamental limitations of traditional antennas and enabled ultra-wideband detection of omni-directional time varying fields all in a compact form factor.
Rajavardhan Talashila, William J Watterson, Benjamin L. Moser, Josh A. Gordon, Alexandra B. Artusio-Glimpse, N. Prajapati, N. Schlossberger, M. Simons, C. Holloway   +8 more
semanticscholar   +1 more source

Single Differenced Doppler Positioning with Low Earth Orbit Signals of Opportunity and Angle of Arrival Estimation

, 2021
This paper proposes a novel method for positioning using Low Earth Orbit (LEO) signals of opportunity. A stationary basestation and roving receiver framework is presented wherein the base-station performs Angle of Arrival (AOA) estimation of the LEO ...
Sterling Thompson, Scott M. Martin, D. Bevly   +2 more
semanticscholar   +1 more source

A Photonic Approach for Doppler-Frequency-Shift and Angle-of-Arrival Measurement Without Direction Ambiguity

Journal of Lightwave Technology, 2021
A dual channel system based on a dual-parallel Mach–Zehnder modulator (DPMZM) is proposed for simultaneous measurement of angle of arrival (AOA) and Doppler frequency shift (DFS).
Hao Zhuo, A. Wen
semanticscholar   +1 more source

Structure function, coherence length, and angle-of-arrival variance for Gaussian beam propagation in turbulent waters.

Journal of The Optical Society of America A-optics Image Science and Vision, 2021
Wave structure function, coherence length, and angle-of-arrival variance are derived analytically for a Gaussian beam propagating in an underwater turbulent medium. The recently introduced oceanic turbulence optical power spectrum model [J. Opt. Soc. Am.
Y. Ata
semanticscholar   +1 more source

Outage Probability and Average BER of UAV-Assisted RF/FSO System for Space–Air–Ground Integrated Networks Under Angle-of-Arrival Fluctuations

IEEE Internet of Things Journal
Introducing free-space optical (FSO) communication into space-air-ground integrated networks (SAGINs) can enable the realization of high data rates to achieve next-generation wireless communication.
Guanjun Xu, Shuyuan Lu, Lin Qu, Qinyu Zhang, Zhaohui Song, Bo Ai   +5 more
semanticscholar   +1 more source

Artificial Neural Network Based Angle-of-Arrival Estimator

2021 Systems of Signals Generating and Processing in the Field of on Board Communications, 2021
This paper reviews a subset of approaches to the angle-of-arrival problem that can be redefined in a form compatible with the techniques based on artificial neural networks.
E. Efimov, Nikolay Neudobnov
semanticscholar   +1 more source

Hardware Interfacing Library for Angle-of-Arrival Estimation in Applied Artificial Intelligence Systems

2024 Systems of Signals Generating and Processing in the Field of on Board Communications
This article discusses a set of issues related to the implementation of an auxiliary library for interfacing hardware platforms for radio signal acquisition and versatile computer-based signal processing systems aimed at using intellectual approaches ...
E. Efimov
semanticscholar   +1 more source

Two-dimensional angle of arrival fluctuations

The Journal of the Acoustical Society of America, 1996
Angle of arrival fluctuations are one manifestation of acoustic propagation through a turbulent flow. Here the two-dimensional angle of arrival distribution for a 670-m acoustic path through a high Reynolds number flow in a tidal channel is examined and its origin and relationship to the flow field is determined.
Daniela Di Iorio, David M. Farmer
openaire   +1 more source