Results 11 to 20 of about 271,289 (267)

Time of arrival in quantum mechanics [PDF]

open access: yesPhysical Review A, 1996
Latex/Revtex, 20 pages. 2 figs included using epsf. Submitted to Phys.
Grot, Norbert   +2 more
openaire   +3 more sources

On ‘arriving on time’, but what is ‘on time’? [PDF]

open access: yesGeoforum, 2006
The time-geographical concept of coupling constraints, which deWne when, where and for how long individuals have to join other individuals and material objects, can be useful to ‘time squeeze’ studies. Geographers have typically operationalised the ‘when’ dimension of coupling constrains through arrival times at locations in physical space or the ...
openaire   +3 more sources

Performance Comparison of ToA and TDOA Based Tracking In Underwater Multipath Environments Using Bernoulli Filter

open access: yesPolish Maritime Research, 2023
Underwater localization and tracking is a challenging problem and Time-of-Arrival and Time-Difference-of-Arrival approaches are commonly used. However, the performance difference between these approaches is not well understood or analysed adequately ...
Gunes Ahmet
doaj   +1 more source

A Fractional Programming Method for Target Localization in Asynchronous Networks

open access: yesIEEE Access, 2018
In this paper, we address the target device localization problem in the asynchronous networks. For the purpose of saving power resources, the target device is not synchronized with the anchor nodes, but is only required to listen to the signals ...
Gang Wang, Nirwan Ansari, Youming Li
doaj   +1 more source

Probabilistic Time of Arrival Localization [PDF]

open access: yesIEEE Signal Processing Letters, 2019
In this paper, we take a new approach for time of arrival geo-localization. We show that the main sources of error in metropolitan areas are due to environmental imperfections that bias our solutions, and that we can rely on a probabilistic model to learn and compensate for them.
Fernando Pérez-Cruz   +3 more
openaire   +3 more sources

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

A Single-Site Vehicle Positioning Method in the Rectangular Tunnel Environment

open access: yesRemote Sensing, 2023
Due to the satellite signals are blocked, it is difficult to obtain the vehicle position in the tunnels. We propose a single-site vehicle localization scheme for the rectangular tunnel environment, where most satellite-based positioning methods can not ...
Suying Jiang, Wei Wang, Peng Peng
doaj   +1 more source

Track mobile devices in a cellular mobile communications system

open access: yesACI Avances en Ciencias e Ingenierías, 2009
Este artículo trata sobre el uso de algoritmos estadísticos en la estimación de señales de una red celular y su aplicación al posicionamiento y seguimiento de dispositivos móvil, con la finalidad de conseguir que la red esté en capacidad de proporcionar ...
Santiago Silva, René P. Játiva E.
doaj   +1 more source

A Two-Stage Method for Short-Wave Target Localization Using DOA and TDOA Measurements

open access: yesIEEE Access, 2023
The ionosphere can make the short-wave source localization problem further non-linear, leading to a complicated solution process. This paper proposed a coordinated positioning algorithm based on the ionospheric virtual height (IVH) model to jointly ...
Linqiang Jiang   +4 more
doaj   +1 more source

Relativistic time of arrival and traversal time [PDF]

open access: yesJournal of Physics A: Mathematical and General, 2002
16 pages, Latex, 8 ...
openaire   +3 more sources

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