Design and Evaluation of a Differential Global Positioning System (DGPS) for the NPS Autonomous Underwater Vehicle (AUV)

Abstract

Accurate underwater positioning remains an important challenge to AUV researchers. Recent development of Differential Global Positioning System (DGPS) embedded in an AUV proved the capability of DGPS fixes to reduce the position error. By surfacing regularly, the AUV takes DGPS fixes and integrates them for position estimation. The purpose of this study is to develop a low-cost DGPS for the NPS AUV. To match mission requirements, the system is designed such that the differential receiver and the GPS receiver are two independent stations using radio modems to communicate. Local experimental testing showed that this system can yield positions within one to five meters accuracy.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1999
Accession Number
ADA369168

Entities

People

  • Gwladys Piton

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • Autonomy
  • Space

DTIC Thesaurus Topics

  • Accuracy
  • Artificial Satellites
  • Autonomous Underwater Vehicles
  • Communication Systems
  • Dead Reckoning
  • Global Positioning Systems
  • Mechanical Engineering
  • Navigation
  • Radio Communications
  • Range Finding
  • Satellite Constellations
  • Satellite Orbits
  • Software Design
  • Three Dimensional
  • Underwater Vehicles
  • United States
  • Vehicles

Readers

  • Positioning, Navigation, and Timing (PNT) Technology.
  • Robotics and Automation.

Technology Areas

  • Space
  • Space - Spacecraft Maneuvers