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Stochastic Modeling of a Hazard Detection and Avoidance Maneuver – The Planetary Landing Case

Witte, Lars (2013) Stochastic Modeling of a Hazard Detection and Avoidance Maneuver – The Planetary Landing Case. Reliability Engineering & System Safety (119), pp. 259-269. DOI: 10.1016/j.ress.2013.06.033. ISSN 0951-8320.

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Abstract

Hazard Detection and Avoidance (HDA) functionalities, thus the ability to recognize and avoid potential hazardous terrain features, is regarded as an enabling technology for upcoming robotic planetary landing missions. In the forefront of any landing mission the landing site safety assessment is an important task in the systems and mission engineering process. To contribute to this task, this paper presents a mathematical framework to consider the HDA strategy and system constraints in this mission engineering aspect. Therefore the HDA maneuver is modeled as a stochastic decision process based on Markov chains to map an initial dispersion at an arrival gate to a new dispersion pattern affected by the divert decision-making and system constraints. The implications for an efficient numerical implementation are addressed. An example case study is given to demonstrate the implementation and use of the proposed scheme.

Document Type:Article
Title:Stochastic Modeling of a Hazard Detection and Avoidance Maneuver – The Planetary Landing Case
Authors:
AuthorsInstitution or Email of Authors
Witte, LarsDLR-Bremen, lars.witte@dlr.de
Date:22 July 2013
Journal or Publication Title:Reliability Engineering & System Safety
Refereed publication:Yes
In Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
DOI:10.1016/j.ress.2013.06.033
Page Range:pp. 259-269
ISSN:0951-8320
Status:Published
Keywords:Landing Safety, Terrain Related Failure, Hazard Avoidance, Autonomous Decision-Making, Planetary Robotic Exploration
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Science and Exploration
DLR - Research area:Raumfahrt
DLR - Program:R EW - Erforschung des Weltraums
DLR - Research theme (Project):R - Vorhaben Landetechnologien
Location: Bremen
Institutes and Institutions:Institute of Space Systems > Explorationssysteme
Deposited By: Lars Witte
Deposited On:23 Jan 2014 10:41
Last Modified:23 Jan 2014 10:41

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