Results 21 to 30 of about 150,096 (147)

A Bias Compensation Method for Distributed Moving Source Localization Using TDOA and FDOA with Sensor Location Errors

open access: yesSensors, 2018
Current bias compensation methods for distributed localization consider the time difference of arrival (TDOA) and frequency difference of arrival (FDOA) measurements noise, but ignore the negative influence by the sensor location uncertainties on source ...
Zhixin Liu, Rui Wang, Yongjun Zhao
doaj   +1 more source

Robust Directional Angle Estimation of Underwater Acoustic Sources Using a Marine Vehicle

open access: yesSensors, 2018
Acoustic source localization is used in many underwater applications. Acquiring an accurate directional angle for an acoustic source is crucial for source localization.
Jinwoo Choi   +4 more
doaj   +1 more source

Semidefinite Programming Algorithms for 3-D AOA-Based Hybrid Localization

open access: yesIEEE Open Journal of Signal Processing, 2023
By taking different kinds of measurements at the same time, it may be possible to improve the accuracy of target localization or reduce the number of sensors needed.
Yanbin Zou
doaj   +1 more source

Time difference of arrival estimation of sound source using cross correlation and modified maximum likelihood weighting function [PDF]

open access: yes, 2017
The Generalized Cross Correlation (GCC) framework is one of the most widely used methods for Time Difference Of Arrival (TDOA) estimation and Sound Source Localization (SSL).
Hosseini, M. S.   +2 more
core   +1 more source

A Model on Indoor Localization System Based on the Time Difference Without Synchronization

open access: yesIEEE Access, 2018
Localization has emerged as an attractive solution to enable new business models that rely on location-based services in wireless networks for communication, sensing, and control. In particular, time difference-of-arrival (TDOA) is one of the widely used
Yuan Xue   +4 more
doaj   +1 more source

Underwater Transmitter Localization Based on TDOA and FDOA Considering the Unknown Time-Varying Emission Frequency

open access: yesJournal of Marine Science and Engineering, 2023
This article considers locating a noncooperative underwater transmitter utilizing multiple receivers, such that each receiver can measure the frequency difference of arrival (FDOA) as well as the time difference of arrival (TDOA) of the transmitter’s ...
Jonghoek Kim
doaj   +1 more source

Underwater source localization using time difference of arrival and frequency difference of arrival measurements based on an improved invasive weed optimization algorithm

open access: yesIET Signal Processing, 2022
In this study, we propose an underwater localization method based on an improved invasive weed optimization algorithm to accurately locate moving sources in underwater sensor networks.
Yunhang Lin   +2 more
doaj   +1 more source

Improved Methods for UHF Localization of Partial Discharge in Air-Insulated Substations

open access: yesEnergies, 2023
A time-difference-of-arrival-based partial discharge (PD) location system that utilises prior knowledge of substation layout is presented. We propose a new time delay estimator that employs onset detection techniques and demonstrate, through experimental
Ahmed Rashwan, Alistair Reid
doaj   +1 more source

Development and Demonstration of a TDOA-Based GNSS Interference Signal Localization System [PDF]

open access: yes, 2012
Background theory, a reference design, and demonstration results are given for a Global Navigation Satellite System (GNSS) interference localization system comprising a distributed radio-frequency sensor network that simultaneously locates multiple ...
Bhatti, Jahshan A.   +2 more
core   +1 more source

Phase Difference of Arrival Aided Downlink Time Difference of Arrival Ultra-Wide Band Positioning System

open access: yesIEEE Access
Currently there is a growing demand for accurate and reliable positioning indoors or in other environments, where Global Navigation Satellite Systems (GNSS) are unavailable.
Josef Krska   +2 more
doaj   +1 more source

Home - About - Disclaimer - Privacy