AAPSilver System Performance Validation

Abstract

The Visual Navigation Division (CG-NAV-1) requested that the Coast Guard Research and Development Center (RDC) examine the accuracy of the new AAPSilver software in calculating the geographic positions (latitude and longitude) of bearing and range offsets from reference locations. The USCG R&D Center tested the software by comparing the AAPSilver output to independently calculated results that were calculated by an algorithm obtained from the National Geodetic Survey. Combinations of test points and offsets were input to AAPSilver, which provided latitude-longitude pairs as outputs. These coordinates were then compared to calculations from the National Geodetic Survey s FORWARD program, which served as the reference for the assessment of AAPSilver. Offset positions agreed to within 8 cm in range and agreed exactly in bearing to the calculated reference measurements. These differences may be compared to uncertainties associated with the use of Differential Global Positioning System receivers used to position Coast Guard ATON vessels when the adequacy of the AAPSilver software is considered for distribution throughout the Coast Guard ATON fleet.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 2012
Accession Number
ADA579575

Entities

People

  • Chris Turner

Organizations

  • United States Coast Guard Research & Development Center

Tags

Communities of Interest

  • Energy and Power Technologies
  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Accuracy
  • Application Software
  • Coast Guard
  • Contractors
  • Department Of Homeland Security
  • Geodetic Surveys
  • Global Positioning Systems
  • Governments
  • Information Systems
  • Latitude
  • Longitude
  • Military Research
  • Navigation
  • Navigational Aids
  • Security
  • United States
  • United States Government

Readers

  • Geodesy
  • Maritime Security/Maritime Homeland Security
  • Naval Personnel Management

Technology Areas

  • Space