Terrestrial & Satellite AIS Technology
AIS (Automatic Identification System) is a maritime safety system used for tracking and identifying vessels. It relies on a network of satellites and ground stations to transmit and receive data about a vessel's position, course, and other relevant information.
The technology has two main components: terrestrial AIS and satellite AIS.
Terrestrial AIS
Terrestrial AIS uses a network of ground stations to transmit and receive data between vessels and shore-based authorities. This system relies on a line-of-sight connection between the vessel and the ground station.
"Terrestrial AIS is a reliable and cost-effective solution for maritime surveillance, but it has limitations in terms of coverage and accessibility." - Source: IMCA
Satellite AIS
Satellite AIS uses a network of satellites to transmit and receive data between vessels and shore-based authorities. This system allows for global coverage and accessibility, making it an attractive option for vessels operating outside of line-of-sight range.
Satellite AIS uses a combination of GPS and GLONASS signals to determine a vessel's position and velocity. The data is then transmitted to a satellite, which relays it to a ground station for processing and analysis.
Advantages of Satellite AIS
- Global coverage and accessibility
- Reliable and cost-effective solution for maritime surveillance
- High accuracy and precision in position and velocity data
Resumé
Terrestrial and satellite AIS technology offers a reliable and cost-effective solution for maritime surveillance. While terrestrial AIS has limitations in terms of coverage and accessibility, satellite AIS provides global coverage and accessibility, making it an attractive option for vessels operating outside of line-of-sight range.
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