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Two approaches to the star mapping problem for space vehicle attitude determination
Applied Optics
|January 16, 2010
Summary
This study explores novel methods for spacecraft attitude determination without prior star knowledge or special maneuvers. It presents two approaches for self-contained, three-axis orientation using star patterns and holography.
Area of Science:
- Spacecraft engineering
- Astrodynamics
- Optical systems
Background:
- Traditional star trackers require known star positions and specific maneuvers for spacecraft attitude determination.
- Existing methods limit autonomous navigation capabilities due to a priori knowledge constraints.
Purpose of the Study:
- To develop self-contained, three-axis attitude determination methods independent of a priori star position knowledge.
- To eliminate the need for specialized spacecraft maneuvers for attitude acquisition.
Main Methods:
- Investigating the identification of unique star patterns and optimal instrument geometry based on stellar angular distribution.
- Exploring the application of holographic techniques for star field recognition in attitude determination.
Main Results:
- The research proposes two distinct methodologies for autonomous attitude determination.
- These methods aim to overcome limitations of conventional star tracking systems.
Conclusions:
- The developed approaches offer potential for enhanced spacecraft autonomy and mission flexibility.
- Holography and optimized star pattern recognition present promising avenues for future attitude determination systems.
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