1. A Novel Inertial-Aided Star Pattern Matching Method for Distributed Multiple FoVs
- Author
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Jianye Liu, Rong Wang, Cao Yuxuan, and Zhi Xiong
- Subjects
Scheme (programming language) ,Matching (statistics) ,Inertial frame of reference ,Article Subject ,Computer science ,ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION ,Aerospace Engineering ,A* search algorithm ,02 engineering and technology ,Astrophysics::Cosmology and Extragalactic Astrophysics ,Accelerometer ,01 natural sciences ,law.invention ,Computer Science::Robotics ,0203 mechanical engineering ,law ,0103 physical sciences ,Astrophysics::Solar and Stellar Astrophysics ,Computer vision ,010303 astronomy & astrophysics ,Astrophysics::Galaxy Astrophysics ,computer.programming_language ,Motor vehicles. Aeronautics. Astronautics ,020301 aerospace & aeronautics ,business.industry ,Usability ,TL1-4050 ,Sight ,Artificial intelligence ,Scale (map) ,business ,computer - 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.
- Published
- 2020