Researching Technology Improvements of AIS
Abstract
The international Automatic Identification System is used by the USCG and Marine Exchange of Alaska to monitor marine traffic navigating the coast of Alaska. This report is a summary of findings concerning methods for extending AIS surveillance coverage through the deployment of remote equipment where both AIS channels are used to acquire AIS messages and relay those messages to existing facilities. Added to the relayed messages are separate measurements of each AIS message. Additional objectives include cyber-attack resistance, maintaining the integrity of the AIS channels, and reduction of deployment and operating costs. The investigation included the design and construction of proof-of-concept equipment with custom software capable of being used in the laboratory, field trials, and demonstrations to test and evaluate the effectiveness of the different methods and options. This effort also considered methods beyond current AIS technology. New signal and data structures were developed and implemented. This results in an ability to partially recovery information from AIS messages normally discarded due to corruption from radio noise and interference. This work concluded with delivery of the proof-of-concept equipment and software. The next phase would be laboratory testing of the methods, upgrades to the methods based on laboratory results, and planning for field tests to determine the operational range compared against standard AIS equipment, such as, store-and-forward repeaters.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 2018
- Accession Number
- AD1060714
Entities
People
- David Pietraszewski
- Irene Gonin
- Lee Luft