Results 31 to 40 of about 121 (91)
Integrity Performance of Egyptian eLoran System for Maritime Application [PDF]
2018 26th International Conference on Systems Engineering (ICSEng), 2018 eLoran is considered as the most promising backup for Global Navigation Satellite System in maritime applications. A proposal study to establish eLoran navigation system for Egyptian maritime harbors is presented to act as an international and national backup to GPS for marine navigation, and other applications using MATLAB.
Farag M. Bahr Abd El-Aziz +3 more
openaire +2 more sources
Assessing Repeatable Accuracy Potential of LoRa: A Navigation Approach
IEEE Access, 2022 Two main classes of radio navigation systems are satellite and ground-based systems. Examples of such systems are eLoran deployed as a terrestrial system, and BeiDou, Galileo, GPS and Quasi-Zenith Satellite System (QZSS) deployed as satellite Navigation ...
Caspar K. Lebekwe +3 more
doaj +1 more source
eLoran Navigation Algorithm Considering Errors Proportional to the Range [PDF]
The Transactions of The Korean Institute of Electrical Engineers, 2011 eLoran is enhanced Loran-C and eLoran is researched for as GPS backup system because this system is resistant to signal interference and has high accuracy. TOA measurements of eLoran include errors proportional to the range such as PF, SF, ASF and EF. Therefore these error factors must be compensated for improved accuracy of position.
Se-Phil Song +4 more
openaire +1 more source
Performance Evaluation of Multi Radio Integrated Navigation System under Navigation Warfare in M&S Software [PDF]
E3S Web of Conferences, 2019 In this paper, a modelling and simulation software is designed in order to evaluate the performance of a multi radio integrated navigation system and the performance evaluation results are presented.
Kim Heyone +4 more
doaj +1 more source
Multi-Thread Based Design of Navigation Algorithm Module in Multi Radio Integrated Navigation System M&S Software [PDF]
E3S Web of Conferences, 2019 A multi-thread based navigation algorithm module is designed in a multi radio integrated navigation system modeling and simulation software in order to efficiently use resources in the software platform of the modeling and simulation software.
Son Jae Hoon +4 more
doaj +1 more source
Positioning Error Analysis of Ranging‐Mode Using AIS Signals in China
Journal of Sensors, Volume 2016, Issue 1, 2016., 2016 In order to provide resilient position, navigation, and time (PNT) information for E‐Navigation, the ranging‐mode (R‐Mode) positioning using automatic identification system (AIS) signals is encouraged. As the accuracy is the key for the positioning system, this paper investigates the position error of the R‐Mode positioning based on AIS shore‐based ...
Kai Zheng +3 more
wiley +1 more source
Time and Frequency Activities at the U.S. Naval Observatory
International Journal of Navigation and Observation, Volume 2008, Issue 1, 2008., 2008 The US Naval Observatory (USNO) has provided timing for the navy since 1830 and, in cooperation with other institutions, has also provided timing for the United States and the international community. Its Master Clock (MC) is the source of UTC(USNO), the USNO′s realization of Coordinated Universal Time (UTC), which has stayed within 5 nanoseconds RMS ...
Demetrios Matsakis, Patrizia Tavella
wiley +1 more source
IET Radar, Sonar &Navigation, Volume 19, Issue 1, January/December 2025.In this paper, based on the Huygens–Fresnel principle, we analyse the Loran‐C groundwave path and propose the groundwave path accumulation (GPA) algorithm, which calculates the groundwave transmission path in complex terrain in segments. It can improve the accuracy of Loran‐C users' packet positioning in high‐altitude areas significantly.
Ao Gao +6 more
wiley +1 more source
Assessing Cyber Challenges of Maritime Navigation
Journal of Marine Science and Engineering, 2020 This paper provides a close investigation into the landscape of both cyber threats and actual incidents in the maritime sector, identifying the cyber trends and challenges as they relate to safe navigation and marine shipping.
Andrej Androjna +3 more
doaj +1 more source
IET Microwaves, Antennas &Propagation, Volume 18, Issue 12, Page 1148-1155, December 2024.A general numerical solution of the IE is presented to predict long‐range low‐frequency groundwave propagation over irregular terrain. The great advantage of the resulting algorithm is that it can freely use non‐uniform grid sizes in the computation area without loss of accuracy.
Dan‐Dan Wang +4 more
wiley +1 more source