Results 61 to 70 of about 121 (91)

Research on the Additional Secondary Phase Factor for Automatic Identification System Signals Transmitted over a Rough Sea Surface. [PDF]

Sensors (Basel), 2018
Wang X, Wang X, Zhang S, Sun X.
europepmc   +1 more source

Prediction of Ground Wave Propagation Delay for MF R-Mode. [PDF]

Sensors (Basel)
Hehenkamp N, Rizzi FG, Grundhöfer L, Gewies S.   +3 more
europepmc   +1 more source

Performance Characterization of GNSS/IMU/DVL Integration under Real Maritime Jamming Conditions. [PDF]

Sensors (Basel), 2018
Ziebold R, Medina D, Romanovas M, Lass C, Gewies S.   +4 more
europepmc   +1 more source

Pseudorange Measurement Method Based on AIS Signals. [PDF]

Sensors (Basel), 2017
Zhang J, Zhang S, Wang J.
europepmc   +1 more source

A sub-μs accuracy GPS alternative using electrical transmission grids as precision timing networks. [PDF]

Sci Rep
Robson S, Haddad MA.
europepmc   +1 more source

Mammalian gene studies. [PDF]

Curr Opin Biotechnol, 1992
europepmc   +1 more source

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All-in-View Time Difference Solution for eLoran

2021 Wave Electronics and its Application in Information and Telecommunication Systems (WECONF), 2021
Pulse-phase radio navigation systems operating in the low frequency range used to perform the task of backing up global navigation satellite systems. The reasons for this were the low power of GPS signals, as well as their vulnerability to random or targeted interference.
A. P. Grunin, S. V. Sai, B. P. Zakirov
openaire   +1 more source

ASF quality assurance for eLoran

Proceedings of the 2012 IEEE/ION Position, Location and Navigation Symposium, 2012
eLoran has the potential to act as a cross-platform backup radio-navigation system to GPS to provide Position Navigation and Timing. As service providers of differential-eLoran for maritime navigation, the General Lighthouse Authorities of the UK and Ireland (the GLAs) must ensure that the system meets the internationally agreed standards for Accuracy,
Hargreaves C, Williams P, Bransby M
openaire   +1 more source

e-Navigation and the Case for eLoran

Journal of Navigation, 2008
International discussions on the concept of e-navigation have identified a robust position-fixing system as one of the essential components. Global Navigation Satellite Systems (GNSS) are known to have vulnerabilities and onboard alternatives such as inertial systems have limitations.
Paul Williams, Sally Basker, Nick Ward
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Enhanced or eLoran for time and frequency applications

Proceedings of the 2005 IEEE International Frequency Control Symposium and Exposition, 2005., 2006
The US Loran system is undergoing a modernization that will result in an enhanced or eLoran system. As a part of this modernization, three 5071A cesium clocks were installed at each transmitter, and state-of-the-art time and frequency clock measurement and control equipment was installed which uses GPS to steer the ensemble averaged Cs clocks to ...
G.L. Roth, P. Schick, J. Jacoby, C. Schweitzer, D. Gervasi, E. Wiley   +5 more
openaire   +1 more source