GPS Signal Phase Tracking Using a Kalman Filter.

Abstract

One of the more significant error sources in using the Global Positioning System for attitude determination of aircraft and earth orbiting satellites is multipath interference. The GPS signal is reflected from the spacecraft structures resulting in a composite signal that differs from the direct line-of-sight signal in terms of phase and amplitude. The resulting phase errors can have a significant impact on the attitude determination error. This thesis will describe the GPS signal generation and provide tools to simulate the signal. A Kalman filter will then be developed to track the phase changes in the simulated GPS signals, and its performance described in the absence and presence of multipath.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1997
Accession Number
ADA333478

Entities

People

  • Thomas H. Newman

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • Energy and Power Technologies
  • Sensors
  • Space

DTIC Thesaurus Topics

  • Algorithms
  • Artificial Satellites
  • Electrical Engineering
  • Estimators
  • Filters
  • Generators
  • Global Positioning Systems
  • Jet Propulsion
  • Kalman Filters
  • Line Of Sight
  • Measurement
  • Navigation
  • Phase Measurement
  • Signal Generation
  • Space Systems
  • Spacecraft
  • Vehicles

Fields of Study

  • Engineering

Readers

  • Adaptive Control and Estimation with Uncertainty in Dynamic Systems.
  • Astronomy and Astrophysics.
  • Radar Systems Engineering.

Technology Areas

  • Space
  • Space - Orbital Debris