On-the Fly Merging of Attitude Solutions

Peter Siegbjørn Jørgensen; John Leif Jørgensen; Troelz Denver

doi:10.1007/978-1-4020-6943-7_16

On-the Fly Merging of Attitude Solutions

Peter Siegbjørn Jørgensen, John Leif Jørgensen, Troelz Denver

Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research

Abstract

Recent advances in autonomous attitude determination instrumentation enable even small satellites flying fully autonomous multi head star trackers providing full accurate and robust attitude information. Each sensor provides the full attitude information but for robustness and optimal usage of the available information, i.e. optimal accuracy, methods for merging such data should be investigated. The need for and desirability of attitude merging depends on the mission objective and available resources. To enable real-time attitude control and reduce requirements on download budget, on-board merging of attitude data will often be advantageous. This should be weighted against the need for post observation reconstruction of attitudes, especially needed when end products are sensitive to optimal attitude reconstruction. Instrument integrated merging algorithms will reduce the complexity of on-board AOCS. Methods for attitude merging are many. Two examples of merging methods taking into consideration anisotropic noise distributions are presented and discussed.

Original language	English
Title of host publication	Small Satellites for Earth Observation : Selected Contributions
Number of pages	406
Publisher	Springer
Publication date	2008
Pages	175-183
ISBN (Print)	978-1-4020-6942-0
DOIs	https://doi.org/10.1007/978-1-4020-6943-7_16
Publication status	Published - 2008
Event	6th IAA Symposium on Small Satellites for Earth Observation - German Aerospace Center, Berlin, Germany Duration: 23 Apr 2007 → 26 Apr 2007 Conference number: 6

Conference

Conference	6th IAA Symposium on Small Satellites for Earth Observation
Number	6
Location	German Aerospace Center
Country	Germany
City	Berlin
Period	23/04/2007 → 26/04/2007

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title = "On-the Fly Merging of Attitude Solutions",

abstract = "Recent advances in autonomous attitude determination instrumentation enable even small satellites flying fully autonomous multi head star trackers providing full accurate and robust attitude information. Each sensor provides the full attitude information but for robustness and optimal usage of the available information, i.e. optimal accuracy, methods for merging such data should be investigated. The need for and desirability of attitude merging depends on the mission objective and available resources. To enable real-time attitude control and reduce requirements on download budget, on-board merging of attitude data will often be advantageous. This should be weighted against the need for post observation reconstruction of attitudes, especially needed when end products are sensitive to optimal attitude reconstruction. Instrument integrated merging algorithms will reduce the complexity of on-board AOCS. Methods for attitude merging are many. Two examples of merging methods taking into consideration anisotropic noise distributions are presented and discussed.",

author = "J{\o}rgensen, {Peter Siegbj{\o}rn} and J{\o}rgensen, {John Leif} and Troelz Denver",

year = "2008",

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isbn = "978-1-4020-6942-0",

pages = "175--183",

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note = "6th IAA Symposium on Small Satellites for Earth Observation ; Conference date: 23-04-2007 Through 26-04-2007",

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AU - Jørgensen, John Leif

AU - Denver, Troelz

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AB - Recent advances in autonomous attitude determination instrumentation enable even small satellites flying fully autonomous multi head star trackers providing full accurate and robust attitude information. Each sensor provides the full attitude information but for robustness and optimal usage of the available information, i.e. optimal accuracy, methods for merging such data should be investigated. The need for and desirability of attitude merging depends on the mission objective and available resources. To enable real-time attitude control and reduce requirements on download budget, on-board merging of attitude data will often be advantageous. This should be weighted against the need for post observation reconstruction of attitudes, especially needed when end products are sensitive to optimal attitude reconstruction. Instrument integrated merging algorithms will reduce the complexity of on-board AOCS. Methods for attitude merging are many. Two examples of merging methods taking into consideration anisotropic noise distributions are presented and discussed.

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EP - 183

BT - Small Satellites for Earth Observation

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