A Synchronous Tuning Control System for Very Low Frequency Communication Based on Real-Time Impedance Detection
Source abstract
Abstract
A Very Low Frequency (VLF) communication system is a communication system with limited transmit bandwidth, mainly because the VLF antenna is a high-Q electrically small antenna (ESA) with a narrow effective bandwidth, which limits the improvement of communication rate. To achieve broadband VLF communication, the commonly used method is synchronous tuning technology. In this paper, a synchronous control algorithm based on real-time impedance detection and a synchronous control system structure are proposed. Simulation results show that the method can improve the antenna matching performance, increase the effective bandwidth of the antenna feeder system, and improve the signaling rate.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Magnetic Properties and Applications · Power Systems Fault Detection · Electric Motor Design and Analysis
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
College of Electronics Engineering, Naval University of Engineering, Wuhan 430030, China
Funding
Basic Strengthening Program Technological Field Fund
References (27)
Show source-provided references
1. Wen, W.F. (2024). Research on Miniaturized HF Ultra-HF Wideband Antenna and Matching Network. [Master’s Thesis, University of Electronic Science and Technology].
2. Dan, D. (2014). Research on Wideband and Miniaturization of Low-Frequency Antenna. [Master’s Thesis, University of Electronic Science and Technology].
3. Fujimoto, K., Hirasawa, K., Henderson, A., and Ames, J.R. (1991). Small Antenna, National Defense Industry Press.
4. Liu, C., Jiang, H., and Huang, J.H. (2008). Very Low Frequency Communication, Haichao Publishing House.
5. MSK engineering implementation method of digital modulation signal demodulation
6. Fan, C., and Cao, L. (2006). Communication Principle, National Defense Industry Press.
7. Watt, A.D. (1967). VLF Radio Engineering, Pergamon.
8. High-Speed Frequency-Shift Keying of LF and VLF Radio Circuits10.1109/TCOM.1957.1097513 ↗
9. MSK synchronization based on FPGA tuning study
10. Electronic Broad Banding of VLF/LF Antennas for FSK Radio Communication10.1109/TCOM.1971.1090683 ↗
11. Very low frequency transmitting antenna dynamic tuning bandwidth study
12. Dynamic tuning VLF antenna performance
13. VLF emission system synchronous tuning study
14. Ling, J., Dong, Y., and Xu, H. (2015). Very low frequency transmitting system performance simulation. J. Radio Commun. Technol., 74–76.
15. VLF emission system based on MSK spectrum frequency characteristic study
16. Firman, C.M. (2024). Synchronized Turn-Off of VLF Antennae: US19720222194. (3904966A), U.S. Patent.
17. Johannessen, P.R., and Planckp, V. (1987). Antenna Tuning System and Method. (4689803), U.S. Patent.
18. Johnson, L.J. (1991). Magnetic Amplifier Switchfor Automatic Tuning of VIF Transmitting Antenna. (5034697), U.S. Patent.
19. Ivan, W., Ivan, W., and Guy, B. (2024). Switchable Inductor for Strong Currents and Antenna Tuning Circuit Provided with at Least One Such Inductance: FR19920005722. (FR2691308A1), U.S. Patent.
20. Simpson, T., Roberts, M., and Berg, E. (2001, January 8–13). Developing a broadband circuit model for the Cutler VLF antenna. Proceedings of the Antennas & Propagation Society International Symposium, Boston, MA, USA.
21. Dual-frequency distortion predictions for the Cutler VLF array10.1109/TAES.2003.1238753 ↗
22. Volke, A., and Hornkamp, M. (2012). IGBT Modules: Technology, Drivers and Applications, Infineon Technologies AG.
23. Khanna, V.K. (2003). Insulated Gate Bipolar Transistor IGBT Theory and Design, Wiley-IEEE Press.10.1002/047172291X ↗
24. Yan, S. (2006). Foundation of Digital Electronic Technology, Higher Education Press.
25. Three-phase high power factor rectifier current control
26. Wu, X. (2018, January 16–17). The Improvement of Circuit Power Factor. Proceedings of the 2nd International Conference on Material Science, Energy and Environmental Engineering (MSEEE 2018), Xi’an, China.10.2991/mseee-18.2018.48 ↗
27. Zu, Y., Li, W., and Lv, Y. (2014). Fundamentals of Circuit Analysis, Publishing House of Electronics Industry. [2nd ed.].