Kalman Filtering and Smoothing in Fotonap for Orbit Determination Using GPS Measurements

Abstract

The Fotonap program has been modified to incorporate a Kalman filter and a fixed lag smoother, the capability to handle GPS measurements through the filter/smoother, a Lockheed-Jacchia dynamic atmospheric model, a discretely changing atmospheric drag coefficient (drag segmentation), and the capability to accept as input to the regular Fotonap the output from the filter/smoother including the full covariance matrix. The derivation of all the required equations is given in this report. Updated versions of Fotonap exist for both CDC 6400 and Univac 1108 computers.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1978
Accession Number
ADA064613

Entities

People

  • David A. Bergeron
  • Georg E. Morduch

Tags

Communities of Interest

  • Space

DTIC Thesaurus Topics

  • Artificial Intelligence
  • Artificial Satellites
  • Atmospheric Density
  • Cartesian Coordinates
  • Computational Science
  • Computations
  • Computer Programming
  • Computer Programs
  • Computers
  • Coordinate Systems
  • Differential Equations
  • Equations
  • Global Positioning Systems
  • Kalman Filtering
  • Kalman Filters
  • Mathematical Analysis
  • Mathematical Filters

Readers

  • Approximation Theory.
  • Computer Science.

Technology Areas

  • Space
  • Space - Orbital Debris