Two algorithms of geodesic line length calculation considering elevation in eLoran systems
IET Radar, Sonar & Navigation, 2023 The existing LOng RAnge Naviating System stations are mostly used by marine users and are situated at offshore, low‐altitude locations. As a result, the impact of height on the system's positioning accuracy is usually ignored.
Sisi Chang +6 more
doaj +3 more sources
ELoran signal message recognition algorithm based on GTCN‐transformer
IET Radar, Sonar & NavigationThe Enhanced Long Range Navigation (eLoran) system serves as a crucial backup to the Global Navigation Satellite System (GNSS), leveraging advantages, such as low signal frequency, high transmitter power, and stable propagation distance.
Kai Zhang +3 more
doaj +3 more sources
IET Radar, Sonar & Navigation, 2023 In this study, a real‐time high accuracy signal simulation technique for an enhanced Loran (eLoran) signal simulator is proposed, which can be used to verify the performance of the eLoran receiver.
Hongyu Ma +6 more
doaj +2 more sources
Improving Data Communication of Enhanced Loran Systems Using 128-ary Polar Codes [PDF]
SensorsThe enhanced Loran (eLoran) system, a critical terrestrial backup for the Global Satellite Navigation System (GNSS), traditionally utilizes a Reed-Solomon (RS) code for its data communication, which presents limitations in error performance, particularly
Ruochen Jia, Yunxiao Li, Daiming Qu
doaj +2 more sources
Comparative Analysis of Time-Series Forecasting Models for eLoran Systems: Exploring the Effectiveness of Dynamic Weighting [PDF]
SensorsThis paper presents an advanced time-series forecasting methodology that integrates multiple machine learning models to improve data prediction in enhanced long-range navigation (eLoran) systems.
Jianchen Di +5 more
doaj +2 more sources
Experimental Study of a Signal Modulation Method to Improve eLORAN Data Channel Communications. [PDF]
Sensors (Basel), 2020 There are mainly two types of data modulation methods used for enhanced LOng-RAnge Navigation (eLORAN) systems: pulse position modulation (PPM) and supernumerary interpulse modulation (SIM). The typical application for PPM is tri-state PPM (3S-PPM), also known as Eurofix. The typical application for SIM is ninth pulse modulation.
Yang C, Wang Y, Li S, Yan W.
europepmc +4 more sources
Long wave propagation delay correlation testing and pattern analysis [PDF]
Scientific ReportsThe complexity of long-wave propagation paths and real-time variations in meteorological conditions can make it challenging to predict accurately the propagation delays of long waves, thereby affecting the precision of long-wave navigation and ...
Jianchen Di +5 more
doaj +2 more sources
Timing Performance Testing and Regularity Analysis of eLoran System
Applied SciencesAccurate time synchronisation is critical in modern communication, navigation, and scientific research. In this context, the eLoran receiver, which is an advanced timing device, has attracted increasing scholarly attention.
Jianchen Di +5 more
doaj +2 more sources
Design and Performance Evaluation of eLoran Monitoring System
Applied SciencesThe monitoring system is one of the indispensable components of the eLoran system, which can monitor the reliability and integrity of the eLoran system.
Chaozhong Yang +3 more
doaj +2 more sources
Enhancing eLoran Timing Accuracy via Machine Learning With Meteorological and Terrain Data
IEEE AccessThe vulnerabilities of global navigation satellite systems (GNSS) to signal interference have increased the demand for complementary positioning, navigation, and timing (PNT) systems.
Taewon Kang +3 more
doaj +3 more sources