Decomposition of LF Resultant Waves With Multipropagation Modes in the Earth-Ionosphere Waveguide
- 18 November 2020
- journal article
- research article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Antennas and Propagation
- Vol. 69 (6), 3443-3450
- https://doi.org/10.1109/tap.2020.3037749
Abstract
Decomposition work of Loran-C resultant waves propagating in the Earth-ionosphere waveguide is concentrated on in this paper. Resultant waves of different Earth-ionosphere models are predicted by the FDTD method first. The inverse fast Fourier Transform (IFFT) spectral-division technique combined with a filtering process is employed to estimate the delays of different wave-propagation modes in the resultant waves, whereas the amplitudes are solved with the least-square method. Finally, accurate field strengths and delays of different modes (ground waves and skywaves of diverse hops) are obtained, which are important for Loran-C receivers to optimize their performances.Funding Information
- National Natural Science Foundation of China (61401261)
- Natural Science Basic Research Plan in Shaanxi Province of China (2020JM-504)
- China Postdoctoral Science Foundation (2016M600803)
This publication has 20 references indexed in Scilit:
- Loran‐C skywave delay estimation using hybrid‐WRELAX algorithmElectronics Letters, 2017
- LF Radio Wave Prediction at Short Ranges With High Propagation Angles Over Irregular TerrainIEEE Antennas and Wireless Propagation Letters, 2016
- Long-Range Three-Dimensional Ground Wave Propagation Modeling Over Flat, Irregular TerrainIEEE Transactions on Antennas and Propagation, 2016
- Long‐range Loran‐C ground‐wave propagation prediction based on adaptive moving window finite‐difference time‐domain method with compute unified device architecture parallel computing techniquesIET Microwaves, Antennas & Propagation, 2015
- Numerical method for calculating LF sky-wave, ground-wave and their resultant wave field strengthsElectronics Letters, 2004
- Effect of Loran-C signal parameters on skywave delay estimation of IFFT techniqueElectronics Letters, 2003
- IFFT technique for skywave detection in Loran-C receiversElectronics Letters, 2001
- Modeling electromagnetic propagation in the Earth-ionosphere waveguideIEEE Transactions on Antennas and Propagation, 2000
- Novel Signal Processing Techniques for Detecting and Minimizing Skywave Interference in Loran-C ReceiversNAVIGATION: Journal of the Institute of Navigation, 1999
- Effect of skywave interference on the coverage of loran-cIEE Proceedings F Radar and Signal Processing, 1992