Results 41 to 50 of about 895,042 (230)

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

Closed-Form Formulae for Time-Difference-of-Arrival Estimation [PDF]

open access: yesIEEE Transactions on Signal Processing, 2008
For a positioning system with L sensors, a maximum of L(L-1)/2 distinct time-difference-of-arrival (TDOA) measurements, which are referred to as the full TDOA set, can be obtained. In this paper, closed-form expressions regarding optimum conversion of the full TDOA set to the nonredundant TDOA set, which corresponds to (L-1) TDOA measurements with ...
Hing-Cheung So   +2 more
openaire   +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

On optimality of multidimensional scaling for time differences of arrival/frequency differences of arrival based moving source localisation

open access: yesIET Signal Processing, 2022
Abstract Multidimensional scaling (MDS) is an attractive technique for a moving source localisation from time and frequency difference of arrival (time differences of arrival (TDOA)/frequency differences of arrival (FDOA)) measurements.
He-Wen Wei, Fei Wen, Jian Cheng
openaire   +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

Time of Arrival from Bohmian Flow [PDF]

open access: yes, 2002
We develop a new conception for the quantum mechanical arrival time distribution from the perspective of Bohmian mechanics. A detection probability for detectors sensitive to quite arbitrary spacetime domains is formulated.
Aharonov Y   +14 more
core   +4 more sources

Optimal sensor placement for time difference of arrival localization [PDF]

open access: yesProceedings of the 48h IEEE Conference on Decision and Control (CDC) held jointly with 2009 28th Chinese Control Conference, 2009
This paper addresses the problem of localizing a source from noisy time-of-arrival measurements. In particular, we are interested in the optimal placement of M planar sensors so as to yield the best expected source location estimate. The main result, on maximizing the expected determinant of the Fisher information matrix for truncated, radially ...
Jason T. Isaacs   +2 more
openaire   +1 more source

A Comprehensive Survey on Short-Distance Localization of UAVs

open access: yesDrones
The localization of Unmanned Aerial Vehicles (UAVs) is a critical area of research, particularly in applications requiring high accuracy and reliability in Global Positioning System (GPS)-denied environments.
Luka Kramarić   +3 more
doaj   +1 more source

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