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Echtzeitfähige Trajektorien-Synthese mittels multivariater Interpolationsverfahren am Beispiel eines Mondlandemanövers

Lockner , Enrico and Oehlschlägel, Thimo and Theil, Stephan and Knauer, Matthias and Tietjen, Jan and Büskens, Christof (2012) Echtzeitfähige Trajektorien-Synthese mittels multivariater Interpolationsverfahren am Beispiel eines Mondlandemanövers. 61. Deutscher Luft- und Raumfahrtkongress 2012, 10.-12. Sept. 2012, Berlin.

Full text not available from this repository.

Abstract

Although the NASA already successfully landed on the Moon in the 60s and 70s of the 20th century, the subject of Moon landing is an important research field of aerospace up to today. The European Space Agency ESA investigates concepts for a successful lunar mission in the next decade. A critical point is the safe and precise landing of the lunar module on the Moon's surface. In the context of conventional approaches, the calculation of an optimal trajectory takes place, due to limited onboard computing capacity, in advance of a mission. The assumed system parameters and initial conditions for the beginning of a maneuver do not normally correspond with the conditions encountered later during the mission. Such deviations are compensated by a calculated tracking control for a specified optimal trajectory. In this article, a new approach is proposed, which increases the area of initial conditions and system parameters that lead to a successful landing. Thereto a nearly optimal interpolation-based trajectory and tracking control, to an actually occurring set of initial conditions and system parameters to the beginning of a maneuver, is calculated, from a grid of pre-calculated optimal trajectories and corresponding tracking controls. The general formulation allows the application of the developed approach to general perturbed optimal control problems. Practicality and relevance is demonstrated by applying it to a Moon landing maneuver.

Item URL in elib:https://elib.dlr.de/81186/
Document Type:Conference or Workshop Item (Speech)
Title:Echtzeitfähige Trajektorien-Synthese mittels multivariater Interpolationsverfahren am Beispiel eines Mondlandemanövers
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Lockner , EnricoUNSPECIFIEDUNSPECIFIED
Oehlschlägel, ThimoUNSPECIFIEDUNSPECIFIED
Theil, StephanUNSPECIFIEDUNSPECIFIED
Knauer, MatthiasUNSPECIFIEDUNSPECIFIED
Tietjen, JanUNSPECIFIEDUNSPECIFIED
Büskens, ChristofUNSPECIFIEDUNSPECIFIED
Date:September 2012
Refereed publication:No
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:Multivariate Interpolation, Trajektorien, Mondlandung,
Event Title:61. Deutscher Luft- und Raumfahrtkongress 2012
Event Location:Berlin
Event Type:national Conference
Event Dates:10.-12. Sept. 2012
Organizer:DGLR
HGF - Research field:other
HGF - Program:other
HGF - Program Themes:other
DLR - Research area:no assignment
DLR - Program:no assignment
DLR - Research theme (Project):no assignment
Location: Bremen
Institutes and Institutions:Institute of Space Systems > Navigation and Control Systems
Deposited By: Oehlschlägel, Thimo
Deposited On:14 Feb 2013 11:51
Last Modified:14 Feb 2013 11:51

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