面向航行保障场景的卫星VDES技术需求研究

Very high frequency Data Exchange System (VDES) is an enhanced and upgraded version of the ship Automatic identification system (AIS) in the maritime mobile business field, integrating the existing AIS functions, and adding special application message (ASM) and broadband Very high frequency data exchange (VDE) functions. Satellite VDES communication is expected to improve maritime traffic safety and information service status globally, supporting real-time navigation and communication. In principle, it can effectively support the demand for maritime data communication in E navigation and intelligent shipping. This article analyzes the current construction status and communication market of VDES system, and presents its application scenarios and operational architecture in navigation support.