Results 21 to 30 of about 124,888,785 (314)

Dilution of Precision in Positioning Systems Using Both Angle of Arrival and Time of Arrival Measurements

open access: yesIEEE Access, 2020
Dilution of precision (DOP) is a value that can describe the effect on the relationship between measurement error and position determination error.
Binghao Li, Kai Zhao, Xuesong Shen
doaj   +1 more source

Optimal Passive Source Localization for Acoustic Emissions

open access: yesEntropy, 2021
Acoustic emission is a non-destructive testing method where sensors monitor an area of a structure to detect and localize passive sources of elastic waves such as expanding cracks.
Carlos A. Prete   +2 more
doaj   +1 more source

Confined Quantum Time of Arrivals [PDF]

open access: yesPhysical Review Letters, 2004
We show that formulating the quantum time of arrival problem in a segment of the real line suggests rephrasing the quantum time of arrival problem to finding states that evolve to unitarily collapse at a given point at a definite time. For the spatially confined particle, we show that the problem admits a solution in the form of an eigenvalue problem ...
Galapon, Eric A.   +2 more
openaire   +3 more sources

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

The Value of Observing the Buyer Arrival Time in Dynamic Pricing [PDF]

open access: yes, 2020
We consider a dynamic pricing problem where a firm sells one item to a single buyer in order to maximize expected revenues. The firm commits to a price function over an infinite horizon.
Correa, José   +2 more
core   +1 more source

Time of arrival from Bohmian flow [PDF]

open access: yesJournal of Physics A: Mathematical and General, 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. Basic positivity and monotonicity properties are established.
Grübl, Gebhard, Rheinberger, Klaus
openaire   +3 more sources

Self-Calibration for the Time-of-Arrival Positioning [PDF]

open access: yesIEEE Access, 2020
Self-calibration of time-of-arrival positioning systems is made difficult by the non-linearity of the relevant set of equations. This work applies dimension lifting to this problem. The objective function is extended by an additional dimension to allow the dynamics of the optimization to avoid local minima.
Juri Sidorenko   +5 more
openaire   +2 more sources

Proof of Delivery Smart Contract for Performance Measurements

open access: yesIEEE Access, 2022
The growth of the enterprise blockchain research supporting supply chain management calls for investigations of their impact and mindfulness of their design, use cases, and pilots.
Yash Madhwal   +4 more
doaj   +1 more source

Time-of-arrival correlations [PDF]

open access: yesPhysical Review A, 2017
33 pages, 4 figures; minor revisions, adding some explanations, version to appear in ...
Anastopoulos, Charis, Savvidou, Ntina
openaire   +2 more sources

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

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