Model Basis for the Navigation Aid Analysis Tool

Abstract

This report describes the development of models used in the Navigation Aid Analysis Tool (NAAT), a self-contained software product that computes the probability of being in a given system state, most commonly, the incident state, for a user-constructed scenario of surface marine navigation in harbor entrance and approach navigation areas. The report describes error models of visual navigation systems, constructed so as to place them on an equal footing with other commonly used radionavigation systems. The report also traces the methods used to create a dynamic Markov state space model, necessary for determining incident rates for arbitrary input of user navigation systems, navigation areas, and vessel characteristics. For a given scenario, the computed incident rate may be compared to the target level of safety to determine if navigation requirements are met.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1999
Accession Number
ADA391686

Entities

People

  • Daniel P. Mcgaffigan
  • Peter B. Morris

Organizations

  • United States Coast Guard Research & Development Center

Tags

Communities of Interest

  • Space

DTIC Thesaurus Topics

  • Accuracy
  • Audiovisual Aids
  • Backup Systems
  • Coast Guard
  • Computational Science
  • Databases
  • Dead Reckoning
  • Failure Mode And Effect Analysis
  • Geometry
  • Guidance
  • Inertial Navigation
  • Inertial Navigation Systems
  • Loran
  • Navigation
  • Navigational Aids
  • Probability
  • Radio Navigation

Fields of Study

  • Computer science

Readers

  • Computational Modeling and Simulation
  • Positioning, Navigation, and Timing (PNT) Technology.

Technology Areas

  • Space