Research Article
A Training Sequence-Based Ranging Method for R-Mode of VHF Data Exchange System
Table 1
The technical specifications of the VDES terrestrial component.
| | Subsystems | Signal bandwidth | Modulations | Symbol rate | Bit rate |
| | AIS | 25 kHz | GMSK | 9.6 ksps | 9.6 kbps | | ASM-TER | 25 kHz | QPSK | 9.6 ksps | 19.2 kbps | | VDE-TER | 25 kHz/
50 kHz/
100 kHz | QPSK/
8-PSK/
16-QAM | 19.2 ksps (25 kHz)/
38.4 ksps (50 kHz)/
76.8 ksps (100 kHz) | Depends on the modulation and the symbol rate |
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