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Evolutionary Neurocontrol as a Novel Method for Low-Thrust Gravity Assist Trajectory Optimization

Carnelli, Ian and Dachwald, Bernd and Vasile, Massimiliano (2006) Evolutionary Neurocontrol as a Novel Method for Low-Thrust Gravity Assist Trajectory Optimization. In: Proceedings of the 25th International Symposium on Space Technology and Science. 25th International Symposium on Space Technology and Science, 2006-06-04 - 2006-06-11, Kanazawa, Japan.

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Abstract

The combination of low-thrust propulsion and gravity assists to enhance deep space missions has proven to be a formidable task. While trajectories generated by methods based on optimal control theory are typically close to the required initial guess, recently investigated global evolutionary programming techniques often necessitate the successive use of different methods. In this paper, we present a new method that is based on evolutionary neurocontrollers. The advantage lies in its ability to explore the solution space autonomously to find optimal trajectories, without requiring an initial guess and the permanent attendance of an expert. A steepest ascent algorithm is introduced that acts as a navigator during the planetary encounter, providing the neurocontroller with the optimal insertion parameters. Results are presented for a Mercury rendezvous with a Venus gravity assist and for a Pluto flyby with a Jupiter gravity assist. They show very good agreement with the reference trajectories, in particular virtually no further refinement of the solution is required.

Item URL in elib:https://elib.dlr.de/47785/
Document Type:Conference or Workshop Item (Speech, Paper)
Title:Evolutionary Neurocontrol as a Novel Method for Low-Thrust Gravity Assist Trajectory Optimization
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Carnelli, IanESA/ESTECUNSPECIFIED
Dachwald, BerndUNSPECIFIEDUNSPECIFIED
Vasile, MassimilianoUniversity of GlasgowUNSPECIFIED
Date:2006
Journal or Publication Title:Proceedings of the 25th International Symposium on Space Technology and Science
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:Low-Thrust Propulsion, Gravity Assist, Trajectory Optimization, Evolutionary Neurocontrol
Event Title:25th International Symposium on Space Technology and Science
Event Location:Kanazawa, Japan
Event Type:international Conference
Event Dates:2006-06-04 - 2006-06-11
Organizer:JAXA
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W SY - Technik für Raumfahrtsysteme
DLR - Research area:Space
DLR - Program:W SY - Technik für Raumfahrtsysteme
DLR - Research theme (Project):W - no assignment (old)
Location: Köln-Porz
Institutes and Institutions:Institute of Materials Physics in Space > Institute of Space Simulation
Deposited By: Dachwald, Dr.-Ing. Bernd
Deposited On:10 Apr 2007
Last Modified:27 Apr 2009 13:37

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