DRDC CORA Task 198 – Implementing a Parametric Model for Satellite AIS


  1. MacNeil, K.
Corporate Authors
Defence Research and Development Canada, Centre for Operational Research and Analysis, Ottawa ON (CAN);CAE Inc, Ottawa Ont (CAN)
The Defence Research and Development Canada’s (DRDC) Centre for Operational Research and Analysis (CORA) Maritime Forces Pacific (MARPAC) Operational Research Team had a requirement to develop and implement a parametric model for reception of uncorrupted messages with the Satellite Automatic Identification System (S-AIS) using the exactView-1 satellite from the exactEarth™ satellite constellation. This parametric model is based on the works of James K.E. Tunaley’s 2011 technical report “The Performance of a Space-Based AIS System”, [5]. The model was developed in MathWork’s MATLAB R2015a script language. The MATLAB script made use of the Systems Tool Kit (STK) software package version 10.1.3 and STK Connect commands. We implemented the required model in a series of MATLAB scripts and functions. These scripts and functions were designed to break down a series of marine-based GeoJSON S-AIS Class A Position Report messages into STK ephemeris and interval constraint files, use these files in STK to perform access analysis between ship objects and the exactEarth™ satellite’s AIS sensor, and then apply that information into an adapted version of the equations in [5] to determine the probability of receiving an uncorrupted S-AIS message. These scripts and functions were delivered to the Technical Authority (TA) along with a list of known limitations and issues. The model was used to determine the probability of receiving uncorrupted S-AIS messages, given a set of rea
satellite automatic identification system;S-AIS;automatic identification system;AIS;parametric model;exactEarth;exactView;Matlab;Satellite ToolKit;uncorrupted messages
Report Number
DRDC-RDDC-2015-C137 — Contract Report
Date of publication
24 Mar 2016
Number of Pages
Electronic Document(PDF)

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