Results 81 to 90 of about 309,361 (185)

Maximum likelihood time-of-arrival estimation using antenna arrays: Application to global navigation satellite systems [PDF]

, 1998
The problem of estimating the time-of-arrival (TOA) of a known signal in the presence of interferences and multipath propagation is addressed. This problem, is essential in high precision receivers of the Global Navigation Satellite Systems.
Fernández Rubio, Juan Antonio, Seco Granados, Gonzalo   +1 more
core  

Disclosing hidden information in the quantum Zeno effect: Pulsed measurement of the quantum time of arrival

, 2008
Repeated measurements of a quantum particle to check its presence in a region of space was proposed long ago [G. R. Allcock, Ann. Phys. {\bf 53}, 286 (1969)] as a natural way to determine the distribution of times of arrival at the orthogonal subspace ...
A. del Campo, J. Echanobe, J. G. Muga, J. von Neumann, L. Lamata, P. Facchi   +5 more
core   +1 more source

Toward Emergency Indoor Localization: Maximum Correntropy Criterion Based Direction Estimation Algorithm for Mobile TOA Rotation Anchor

IEEE Access, 2018
To find the relative positional relationship accurately and efficiently without pre-installed infrastructure in emergent scenarios like firefighting, we proposed a rotating-anchor based indoor geolocation system using time of arrival (TOA) technique in ...
Liyuan Xu, Jie He, Peng Wang, Kaveh Pahlavan, Huansheng Ning, Qin Wang   +5 more
doaj   +1 more source

Transition from discrete to continuous time of arrival distribution for a quantum particle

, 2005
We show that the Kijowski distribution for time of arrivals in the entire real line is the limiting distribution of the time of arrival distribution in a confining box as its length increases to infinity.
A. Peres, E. A. Galapon, Eric A. Galapon, F. Delgado, I. L. Egusquiza, Iñigo Egusquiza, J. Gonzalo Muga, J. Kijowski, M. Jammer, P. Busch, P. R. Holland, Ph. Blanchard, W. Pauli   +12 more
core   +1 more source

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

IEEE 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, Christian Gentner, Vaclav Navratil   +2 more
doaj   +1 more source

Time-of-arrival probabilities and quantum measurements: II Application to tunneling times

, 2008
We formulate quantum tunneling as a time-of-arrival problem: we determine the detection probability for particles passing through a barrier at a detector located a distance L from the tunneling region.
Busch P., Charis Anastopoulos, Davies E. B., Hartle J. B., Ntina Savvidou, Sokolovski D.   +5 more
core   +1 more source

Robust Time-of-Arrival Location Estimation Algorithms for Wildlife Tracking. [PDF]

Sensors (Basel), 2023
Arnon E, Cain S, Uzan A, Nathan R, Spiegel O, Toledo S.   +5 more
europepmc   +1 more source

Deep Learning-Based Location Spoofing Attack Detection and Time-of-Arrival Estimation through Power Received in IoT Networks. [PDF]

Sensors (Basel), 2023
Aldosari W.
europepmc   +1 more source

Updating Measures of CME Arrival Time Errors

Space Weather
Coronal mass ejections (CMEs) drive space weather effects at Earth and the heliosphere. Predicting their arrival is a major part of space weather forecasting.
C. Kay, E. Palmerio, P. Riley, M. L. Mays, T. Nieves‐Chinchilla, M. Romano, Y. M. Collado‐Vega, C. Wiegand, A. Chulaki   +8 more
doaj   +1 more source

Time of arrival through a quantum barrier

, 1999
We introduce a formalism for the calculation of the time of arrival t at a detector of particles traveling through interacting environments. We develop a general formulation that employs quantum canonical transformations from the free to the interacting cases to compute t. We interpret our results in terms of a Positive Operator Valued Measure. We then
Leon, J., Julve, J., Pitanga, P., de Urries, F. J.   +3 more
openaire   +2 more sources