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Development of a low cost star tracker for the SHEFEX mission

Samaan, Malak and Theil, Stephan (2011) Development of a low cost star tracker for the SHEFEX mission. Aerospace Science and Technology. DOI: 10.1016/j.ast.2011.09.013.

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Official URL: http://www.sciencedirect.com/science/article/pii/S1270963811001684

Abstract

German Aerospace Center (DLR) is designing and developing a novel star tracker to be used as the primary attitude sensor for the SHEFEX mission. The developed star tracker is considered to be a low cost and low accuracy sensor that is suitable for the proposed mission and the attitude accuracy requirements. This sensor is based on an off-the-shelf camera and a PC/104 computer communicating with the navigation computer. The attitude determination software consists of a processing chain including the camera control, the image processing, the star identification and the attitude estimation. The emphasis of the work is on developing a simple but robust system. Therefore, different algorithm concepts for each element of the chain have been implemented, tested and compared. Several night sky tests and star image simulation software have been implemented and used to verify the performance of the sensor in real-time End-to-End tests. The paper presents the star tracker system, details some newly developed algorithms and analyzes the test results.

Document Type:Article
Title:Development of a low cost star tracker for the SHEFEX mission
Authors:
AuthorsInstitution or Email of Authors
Samaan, MalakMalak.Samaan@dlr.de
Theil, StephanStephan.Theil@dlr.de
Date:8 October 2011
Journal or Publication Title:Aerospace Science and Technology
Refereed publication:Yes
In Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
DOI:10.1016/j.ast.2011.09.013
Status:Published
Keywords:attitude determination star sensor SHEFEX image processing star identification
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Transport
DLR - Research area:Raumfahrt
DLR - Program:R RP - Raumtransport
DLR - Research theme (Project):R - SHEFEX Programm (old)
Location: Bremen
Institutes and Institutions:Institute of Space Systems > Regelungs- und Datensysteme
Deposited By: Dr.-Ing. Malak Samaan
Deposited On:22 Feb 2012 11:21
Last Modified:12 Dec 2013 21:37

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