AIS Channel Simulator

Comparison of Terrestrial VHF SOTDMA vs. LEO Satellite Detection Performance.

Terrestrial VHF AIS

Standard 2-channel SOTDMA @ 9.6 kbit/s. Fixed 4500 slots/min capacity.

Num Ships

Msg Rate/hr/ship

Avg Msg Size (bits)

Bandwidth (kbit/s)

Uplink detection performance based on ship density in satellite footprint.

Footprint Ships

Revisit Time (min)

Msg Rate/hr/ship

Avg Msg Size (bits)