Elevation Determination by Using GPS

Abstract

The Global Positioning System (GPS), when used in a differential mode, can be used to obtain very accurate heights relative to an ellipsoid. Questions have been raised as to how accurate GPS can be used to obtain elevations based on the geoid. Several field techniques (i.e. local geoid modeling) as well as geoid modeling software have been developed in order to use GPS to obtain elevations based on the geoid. This paper will present analysis and results of testing performed by running a level loop with Differential GPS (DGPS) and conventional spirit leveling. The testing was performed in Alexandria, VA on 16&18 May 1994 by members of the Surveying Division of the Topographic Engineering Center. Global positioning system, Surveying, Differential GPS, Rapid static, Short occupation times of 5-20 minutes per station.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1994
Accession Number
ADA281290

Entities

People

  • James K. Garster

Organizations

  • Army Geospatial Center

Tags

Communities of Interest

  • Space

DTIC Thesaurus Topics

  • Accuracy
  • Artificial Satellites
  • Carrier Frequencies
  • Data Acquisition
  • Data Analysis
  • Data Processing
  • Department Of Defense
  • Elevation
  • Ellipsoids
  • Engineering
  • Global Positioning Systems
  • Leveling
  • Line Of Sight
  • Measurement
  • Range Finding
  • Security
  • Surveys

Readers

  • Academic Conference Management
  • Geodesy
  • Positioning, Navigation, and Timing (PNT) Technology.

Technology Areas

  • Space