Results 1 to 10 of about 339,040 (317)

Differentiability of the Arrival Time [PDF]

open access: yesCommunications on Pure and Applied Mathematics, 2016
AbstractFor a monotonically advancing front, the arrival time is the time when the front reaches a given point. We show that it is twice differentiable everywhere with uniformly bounded second derivative. It is smooth away from the critical points where the equation is degenerate.
Colding, Tobias, Minicozzi, William
openaire   +5 more sources

Times of arrival and gauge invariance [PDF]

open access: yesProceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2021
We revisit the arguments underlying two well-known arrival-time distributions in quantum mechanics, viz., the Aharonov–Bohm–Kijowski (ABK) distribution, applicable for freely moving particles, and the quantum flux (QF) distribution. An inconsistency in the original axiomatic derivation of Kijowski’s result is pointed out, along with an inescapable ...
Siddhant Das, Markus Nöth
openaire   +2 more sources

Low-Complexity Wideband Interference Mitigation for UWB ToA Estimation

open access: yesSensors, 2023
Reliable time of arrival (ToA) estimation in dense multipath (DM) environments is a difficult task, especially when strong interference is present. The increasing number of multiple services in a shared spectrum comes with the demand for interference ...
Stefan Hechenberger   +2 more
doaj   +1 more source

Robust localization in wireless networks from corrupted signals

open access: yesEURASIP Journal on Advances in Signal Processing, 2021
We address the problem of timing-based localization in wireless networks, when an unknown fraction of data is corrupted by non-ideal propagation conditions.
Muhammad Osama   +3 more
doaj   +1 more source

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

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

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-of-arrival states [PDF]

open access: yesPhysical Review A, 1999
15 pages, 2 ...
Oppenheim, J, Reznik, B, Unruh, WG
openaire   +3 more sources

Fusion Localization Algorithm Based on Robust IMM Model Combined with Semi-Definite Programming

open access: yesActuators, 2022
With the continuous development of wireless sensor network (WSN) technology, WSN has gradually become one of the key technologies of the Internet, and is widely used in indoor target location technology. However, the obstacles will have a great influence
Yan Wang, Yang Cheng, Long Cheng
doaj   +1 more source

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

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