High-Power Coupled Wideband Low-Frequency Antenna Design for Enhanced Long-Range Loran-C Timing Synchronization [PDF]
SensorsPrecise timing synchronization remains a fundamental requirement for modern navigation and communication systems, where the miniaturization of Loran-C infrastructure presents both technical challenges and practical significance. Conventional miniaturized
Jingqi Wu +7 more
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Research on the Loran-C Pseudorange Positioning Method Based on an Ellipsoidal Geodesic Model and Its Application in Inland Areas [PDF]
SensorsThe Loran-C system employs the spherical hyperbola positioning (SHP) method. However, SHP has three drawbacks in inland regions: first, approximating the Earth’s ellipsoid as a sphere introduces positioning errors; second, hyperbola positioning ...
Ao Gao +6 more
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Suppression of Continuous Wave Interference in Loran-C Signal Based on Sparse Optimization Using Tunable Q-Factor Wavelet Transform and Discrete Cosine Transform [PDF]
Sensors, 2021 Loran-C is the most essential backup and supplementary system for the global navigation satellite system (GNSS). Continuous wave interference (CWI) is one of the main interferences in the Loran-C system, which will cause errors in the measurement of the ...
Wenwen Ma +4 more
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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
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Application of Ultra Narrow Band Modulation in Enhanced Loran System [PDF]
Sensors, 2021 The Enhanced Loran (eLoran) system is valued for its important role in the positioning, navigation, and timing fields; however, with its current modulation methods, low data rate restricts its development.
Boyun Lyu +3 more
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Booster vaccinations protect shipboard personnel from COVID-19 [PDF]
Preventive Medicine Reports, 2022 Margaret Ryan, David Loran
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Applied Sciences, 2022 To improve the coverage and timing capability of enhanced Loran signals, three enhanced Loran transmitters are planned to be built in Western China. The most appropriate antenna configuration can be determined by comparing domestic and foreign mainstream
Zhaopeng Hu +3 more
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Design of Loran-C receiving antenna with high-performance
Dianzi Jishu Yingyong, 2022 A kind of magnetic antenna with order series multi-layer coils is made for improving the receiving ability of the Loran-C magnetic antenna. The signal-to-noise ratio and sensitivity of order series multi-layer coil magnetic antenna are derived ...
Gao Jiuxiang +3 more
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Precise Loran-C Signal Acquisition Based on Envelope Delay Correlation Method
Sensors, 2020 The Loran-C system is an internationally standardized positioning, navigation, and timing service system. It is the most important backup and supplement for the global navigation satellite system (GNSS).
Wenhe Yan +4 more
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Technical Note: Remote sensing of sea surface salinity using the propagation of low-frequency navigation signals [PDF]
Ocean Science, 2015 This paper introduces a potential method for the remote sensing of sea surface salinity (SSS) using the measured propagation delay of low-frequency Loran-C signals transmitted over an all-seawater path between the Sylt station in Germany and an ...
I. Astin, Y. Feng
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