Efficient stochastic orbit modeling techniques using least squares estimators

A. Jäggi, G. Beutler, U. Hugentobler

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

9 Scopus citations

Abstract

Reduced-dynamic orbit determination for spaceborne GPS receivers of low Earth orbiting satellites is a successful method promising highest precision. We review the principles of (reduced) dynamic orbit determination and develop the mathematical background for different efficient stochastic orbit parametrizations (e.g., piecewise constant accelerations which provide not only continuous but also differentiable orbits) using least squares methods. Simulated as well as real data from the CHAMP GPS receiver show, to some extent, the equivalence of the different parametrizations and reveal the impressive performance of stochastic orbit modeling techniques. Independent comparisons with orbits determined by other groups and validations with SLR measurements show that our orbits are of high quality.

Original languageEnglish
Title of host publicationA Window on the Future of Geodesy - Proceedings of the International Association of Geodesy
EditorsFernando Sansò
PublisherSpringer Verlag
Pages175-180
Number of pages6
ISBN (Print)9783540240556
DOIs
StatePublished - 2005
Externally publishedYes
EventProceedings of the International Association of Geodesy, IAG 2003 - Sapporo, Japan
Duration: 30 Jun 200311 Jul 2003

Publication series

NameInternational Association of Geodesy Symposia
Volume128
ISSN (Print)0939-9585
ISSN (Electronic)2197-9359

Conference

ConferenceProceedings of the International Association of Geodesy, IAG 2003
Country/TerritoryJapan
CitySapporo
Period30/06/0311/07/03

Keywords

  • Low earth orbiter
  • Reduced-dynamic orbit determination
  • Stochastic orbit parametrization

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