Results 31 to 40 of about 167,853,547 (147)

Synchronization-Free Underwater Acoustic Localization for Autonomous Platforms: A Neural Network TDOA Approach and the Role of Receiver Geometry

open access: yesDrones
Accurate underwater acoustic localization is a key enabling capability for autonomous underwater vehicles and underwater drones, which cannot rely on satellite positioning while submerged and therefore depend on acoustic methods to determine their ...
Yigit Mahmutoglu
doaj   +1 more source

High‐precision simulation technology for enhanced Loran signal simulators based on Lagrange farrow structure filter

open access: yesIET Radar, Sonar & Navigation, 2023
In this study, a real‐time high accuracy signal simulation technique for an enhanced Loran (eLoran) signal simulator is proposed, which can be used to verify the performance of the eLoran receiver.
Hongyu Ma   +6 more
doaj   +1 more source

Un enfoque bayesiano para la ubicación de la fuente de emisión acústica modal

open access: yesEcomatemático, 2019
Modal Acoustic Emission (MAE) is a branch of Acoustic Emission (AE) with proven capabilities for Structural Health Monitoring (SHM) of plate-like structures. MAE differences from AE in that MAE uses the understanding of the wave propagation to
Boris A. Zárate
doaj   +1 more source

mmWave V2V Localization in MU-MIMO Hybrid Beamforming

open access: yesIEEE Open Journal of Vehicular Technology, 2022
Recent trends for vehicular localization in millimetre-wave (mmWave) channels include employing a combination of parameters such as angle of arrival (AOA), angle of departure (AOD), and time of arrival (TOA) of the transmitted/received signals ...
Jaswinder Lota   +4 more
doaj   +1 more source

Numerical Investigation of the Time Discretization Impact on the Accuracy of a Point Target Localization by UWB Radar

open access: yesEPJ Web of Conferences, 2018
UWB radar technologies enable localization of moving persons (targets) situated behind nonmetallic obstacles. Under exact knowledge of the propagation times, from the transmitting to the receiving antennas, of the radar emitted electromagnetic wave (time
Buša Ján   +2 more
doaj   +1 more source

A Review of Linear Multilateration Techniques and Applications

open access: yesIEEE Access
In multilateration, distances between an unknown location and several known points are used to determine the location of the unknown point. Papers on algorithms for multilateration, such as time of arrival (TOA), time difference of arrival (TDOA), and ...
Eric Widdison, David G. Long
doaj   +1 more source

Time of Arrival Based on Chirp Pulses as a means to Perform Localization in IEEE 802.15.4a Wireless Sensor Networks

open access: yesAdvances in Electrical and Computer Engineering, 2010
This paper introduces the technology Time of Arrival (TOA) based on chirp pulses (according to IEEE 802.15.4a) as a means to perform localization in Wireless Sensor Networks (WSN's) active at 2.4 GHz.
NAUWELAERS, B.   +4 more
doaj   +1 more source

BASAT: BLE AOA-Based Spatio-Temporal Acoustic TOA Estimator

open access: yesIEEE Access
In severely reverberant indoor environments, acoustic Time-of-Arrival (TOA) localization on commercial smartphones is prone to multipath-induced bias and unreliable ranging.
Can Xue, Huixin Zhuge, Zhi Wang
doaj   +1 more source

A novel time of arrival estimation algorithm using an energy detector receiver in MMW systems

open access: yesEURASIP Journal on Advances in Signal Processing, 2017
This paper presents a new time of arrival (TOA) estimation technique using an improved energy detection (ED) receiver based on the empirical mode decomposition (EMD) in an impulse radio (IR) 60 GHz millimeter wave (MMW) system.
Xiaolin Liang   +4 more
doaj   +1 more source

A Closed-Form Localization Algorithm and GDOP Analysis for Multiple TDOAs and Single TOA Based Hybrid Positioning

open access: yesApplied Sciences, 2019
Cellular communication systems support mobile phones positioning function for Enhanced-911 (E-911) location requirements, but the positioning accuracy is poor. The fifth-generation (5G) cellular communication system can use indoor distribution systems to
Zhongliang Deng   +6 more
doaj   +1 more source

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