THE EFFECTS OF SENSOR ERRORS IN CERTAIN MARINE COLLISION AVOIDANCE AND THREAT ASSESSMENT SYSTEMS

The paper distinguishes between optimal and practical collision avoidance systems and selects a set of variables that can be used to compute collision avoidance (C/A) parameters in practical systems. Specifically, the paper studies the effects of sensor errors upon the calculation of the passing distance at CPA, the point-of-possible-collision (PPC), and range over range-rate (TAU). The possible sources of error are summarized and characterized as deterministic or random, dependent or independent, correlated or decorrelated, and fixed bias. A computer program is described that makes use of a Kalman filter to compute the effects of error upon C/A parameters. The results of computer runs are given that show that most errors have insignificant effects. The others can be reduced or removed if required. A means is provided for estimating a part of the economic return on investment in a computerized collision avoidance system.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/2083741
• Corporate Authors:

  Institute of Navigation

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  Washington, DC  United States  20005
• Authors:
  • Riggs, R F
• Publication Date: 1974-3

Media Info

• Features: References;
• Pagination: p. 16-34
• Serial:
  • Navigation: journal of the Institute of Navigation
  • Volume: 21
  • Issue Number: 1
  • Publisher: Institute of Navigation
  • ISSN: 0028-1522
  • Serial URL: http://www.ion.org/newsletter/

Subject/Index Terms

• TRT Terms: Crash avoidance systems; Gyroscopes; Radar displays; Ships; Tracking systems
• Old TRIS Terms: Radar plotting; Ship tracking
• Subject Areas: Marine Transportation; Operations and Traffic Management; Safety and Human Factors; Vehicles and Equipment;

Filing Info

• Accession Number: 00057051
• Record Type: Publication
• Source Agency: Institute of Navigation
• Files: TRIS
• Created Date: Jul 31 1974 12:00AM