Global Positioning System Satellite Selection

Abstract

This report describes an investigation of whether GPS satellite selection algorithms that consider jammer-to-signal ratio as well as Geometric Dilution of Precision can provide better navigation performance than an algorithm which discriminates on the basis of GDOP alone. The study was done with a computerized Monte Carlo simulation of aircraft trajectories over parametric jammer layouts with both the 18 and 24 satellite constellations. The report contains tables and graphs which characterize both constellations in terms of satellite visibility at varying latitudes with a range of mask angles. It details the GDOP alternatives available, and tracks both GDOP and J/S during simulated missions. Lastly, some qualified conclusions are drawn about the comparative performance of an algorithm that considers GDOP only and one that includes consideration of J/S.

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Document Details

Document Type
Technical Report
Publication Date
Mar 02, 1981
Accession Number
ADB056664

Entities

People

  • Edward C. Dudzinski

Organizations

  • Wright Laboratory

Tags

DTIC Thesaurus Topics

  • Aeronautical Laboratories
  • Air Force
  • Aircrafts
  • Algorithms
  • Artificial Satellites
  • Coordinate Systems
  • Global Positioning Systems
  • Government Procurement
  • Governments
  • Latitude
  • Mission Profiles
  • Navigation
  • Satellite Constellations
  • Satellite Orbits
  • Simulations
  • Spacecraft
  • Test And Evaluation

Readers

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

Technology Areas

  • Space
  • Space - Satellites