Electromagnetic Compatibility of Maglev Arc Discharge Interference on VDB Signals
Electromagnetic compatibility (EMC) impacts of arc discharge from medium-low speed maglev trains on the VHF Data Broadcast (VDB) link of the Ground-Based Augmentation System (GBAS) are systematically investigated. Considering that a single VDB station serves multiple runways, this study evaluates how different placements of the VDB antenna relative to runway thresholds affect its susceptibility to maglev interference. Field measurements of maglev arc radiation under various operational conditions revealed a maximum radiation field strength of 57.76 dBμV/m at 113 MHz. Laboratory experiments further identified a minimum required signal-to-interference ratio (SIR) of 26 dB for reliable VDB signal decoding. Theoretical analyses demonstrate that maintaining a separation greater than 5.73 km between the maglev arc source and runway threshold is necessary to ensure signal integrity. The findings offer practical guidance for airport planning and electromagnetic protection design.
Authors
- Hede Lu (ORCID: https://orcid.org/0000-0002-3865-7396)
- Xin Li (ORCID: https://orcid.org/0000-0002-7368-6248)
- Yutao Tang (ORCID: https://orcid.org/0000-0002-2306-1880)
- Chao Zhou (ORCID: https://orcid.org/0009-0003-9745-3005)
- Yifang Tan
Institutions
- Henan Tianguan Group (China) (CN)
- Civil Aviation Flight University of China (CN)
Publication Details
- Journal
- Electronics
- Published
- 2025-09-25
- DOI
- https://doi.org/10.3390/electronics14193806
- Primary Topic
- Plasma Diagnostics and Applications
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- Fundamental Research Funds for the Central Universities