1. A Novel Inertial-Aided Star Pattern Matching Method for Distributed Multiple FoVs.
- Author
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Wang, Rong, Cao, Yuxuan, Liu, Jianye, and Xiong, Zhi
- Subjects
- *
PATTERN matching , *HIGH-speed aeronautics , *INFORMATION measurement - Abstract
An aerospace vehicle in high-speed flight involves distributed multiple fields of view (FoVs) of a star sensor, and the maneuvering of the vehicle requires inertial-aided star pattern matching. Accordingly, an inertial-aided star pattern matching method for distributed multiple FoVs is proposed. First, the observation and fusion principles of distributed multiple FoVs are illustrated. Then, an inertial-aided star pattern matching scheme is designed based on the space-time distribution of the line-of sight (LoS) vector and inertial measurement information. Next, an LoS vector estimation method assisted by inertial information and the dynamic establishment of a distributed local catalog are proposed. Finally, in a simulation, the dynamic establishment of the part catalog improves the efficiency of star pattern matching by reducing the catalog scale, and the usability of inertial-aided star pattern matching is analyzed for different gyro and accelerometer precisions. [ABSTRACT FROM AUTHOR]
- Published
- 2020
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