Results 51 to 60 of about 23,934,500 (209)

Transferring Route Plan Over Time

open access: yes, 2011
Travelling salesman problem (TSP) is a combinational optimization problem and solution approaches have been applied many real world problems. Pure TSP assumes the cities to visit are fixed in time and thus solutions are created to find shortest path according to these point. But some of the points are canceled to visit in time.
Kocer B., Arslan A.
openaire   +2 more sources

Effect of atmospheric anisoplanatism on earth-to-satellite time transfer over laser communication links.

open access: yesOptics Express, 2017
The need for an accurate time reference on orbiting platforms motivates study of time transfer via free-space optical communication links. The impact of atmospheric turbulence on earth-to-satellite optical time transfer has not been fully characterized ...
A. Belmonte   +3 more
semanticscholar   +1 more source

LEO-Enhanced Multi-GNSS Real-Time PPP Time Transfer

open access: yesRemote Sensing
GNSS Precise Point Positioning (PPP) technology has been applied to the time transfer for a long time, enabling time synchronization between two arbitrary stations on a global scale.
Wei Xie   +5 more
doaj   +1 more source

Optical two-tone time transfer

open access: yesPhysical Review Applied
Subpicosecond time synchronization can enable future optical timekeeping networks [F. Riehle, Nat. Photonics 11 (1), 25 (2017)], including coherent phased array radar imaging at gigahertz levels [Collaboration, Event Horizon Telescope, Astrophys. J. Lett.
Jonathan D. Roslund   +7 more
openaire   +2 more sources

Comparison of Low-Cost GNSS Receivers for Time Transfer using Zero-Length Baseline

open access: yesMeasurement Science Review
A comparison between low-cost single-frequency and dual-frequency Global Navigation Satellite System (GNSS) receiver timing modules is presented, focusing on their suitability for time transfer applications.
Doršic Marek
doaj   +1 more source

The Application of Coherent Local Time for Optical Time Transfer and the Quantification of Systematic Errors in Satellite Laser Ranging

open access: yes, 2018
Highly precise time and stable reference frequencies are fundamental requirements for space geodesy. Satellite laser ranging (SLR) is one of these techniques, which differs from all other applications like Very Long Baseline Interferometry (VLBI), Global
K. U. Schreiber, J. Kodet
semanticscholar   +1 more source

Transfer Information Energy: A Quantitative Indicator of Information Transfer between Time Series

open access: yesEntropy, 2018
We introduce an information-theoretical approach for analyzing information transfer between time series. Rather than using the Transfer Entropy (TE), we define and apply the Transfer Information Energy (TIE), which is based on Onicescu’s ...
Angel Caţaron, Răzvan Andonie
doaj   +1 more source

A Novel Relational-Based Transductive Transfer Learning Method for PolSAR Images via Time-Series Clustering

open access: yesRemote Sensing, 2019
The combination of transfer learning and remote sensing image processing technology can effectively improve the automation level of image information extraction from a remote sensing time series.
Xingli Qin   +4 more
doaj   +1 more source

Invariance times transfer properties

open access: yesProbability, Uncertainty and Quantitative Risk
Invariance times are stopping times $τ$ such that local martingales with respect to some reduced filtration and an equivalently changed probability measure, stopped before $τ$ , are local martingales with respect to the original model filtration and probability measure.
openaire   +2 more sources

Time dependent heat transfer of proliferation resistant plutonium

open access: yesNuclear Engineering and Technology, 2019
Increasing proliferation resistance of plutonium by way of increased 238Pu content is of interest to the nuclear nonproliferation and international safeguards community.
Cody Lloyd   +2 more
doaj   +1 more source

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