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Attainable Landing Area Computation of Lunar Landers with Pseudo-Spectral and Polynomial Based Guidance Methods

Arslantas, Yunus and Alsharif, Mohammad and Hölzel, Matthew and Theil, Stephan (2017) Attainable Landing Area Computation of Lunar Landers with Pseudo-Spectral and Polynomial Based Guidance Methods. In: Proceedings of the International Astronautical Congress, IAC. 68th International Astronautical Congress 2017, 25-29 Sept 2017, Adelaide, Australia.

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Abstract

In this paper, we introduce two methods for computing reachable sets, namely, via Pseudo-Spectral based optimal control techniques and via a modified form of the Apollo guidance algorithm. Specifically, in the latter case, we use the Apollo guidance to generate a reference trajectory, and a Lyapunov-based PD controller to track it. We then demonstrate the effectiveness of both approaches on the soft-landing problem for a Moon mission, where we show that although both algorithms achieve similar propellant requirements, the optimal control approach generates larger reachable sets at the expense of higher computational cost.

Item URL in elib:https://elib.dlr.de/116348/
Document Type:Conference or Workshop Item (Lecture)
Title:Attainable Landing Area Computation of Lunar Landers with Pseudo-Spectral and Polynomial Based Guidance Methods
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Arslantas, Yunusyunusemr (at) uni-bremen.dehttps://orcid.org/0000-0001-9924-2250
Alsharif, MohammadAlsharif (at) uni-bremen.deUNSPECIFIED
Hölzel, Matthewhoelzel (at) uni-bremen.dehttps://orcid.org/0000-0002-6200-4600
Theil, Stephanstephan.theil (at) dlr.dehttps://orcid.org/0000-0002-5346-8091
Date:September 2017
Journal or Publication Title:Proceedings of the International Astronautical Congress, IAC
Refereed publication:No
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:No
Status:Published
Keywords:rechable sets, optimal control, lunar landing
Event Title:68th International Astronautical Congress 2017
Event Location:Adelaide, Australia
Event Type:international Conference
Event Dates:25-29 Sept 2017
Organizer:International Astronautical Federation
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Technology
DLR - Research area:Raumfahrt
DLR - Program:R SY - Technik für Raumfahrtsysteme
DLR - Research theme (Project):R - Projekt ATON
Location: Bremen
Institutes and Institutions:Institute of Space Systems > Navigation and Control Systems
Deposited By: Theil, Dr.-Ing. Stephan
Deposited On:01 Dec 2017 12:37
Last Modified:15 Mar 2018 09:20

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