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An Accurate and Efficient Gaussian Fit Centroiding Algorithm for Star Trackers
The Journal of the Astronautical Sciences, 2014This paper presents a novel centroiding algorithm for star trackers. The proposed algorithm, which is referred to as the Gaussian Grid algorithm, fits an elliptical Gaussian function to the measured pixel data and derives explicit expressions to determine the centroids of the stars. In tests, the algorithm proved to yield accuracy comparable to that of
Tjorven Delabie +2 more
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Hardware Design and Star Selection Algorithm for Arcsecond Pico Star Tracker
2018The star tracker estimates pointing knowledge of a satellite in arcsecond accuracy in three axes without apriori knowledge. But star trackers are larger in size, heavier, power hungry and expensive for nanosatellite missions. The Arcsecond Pico Star Tracker (APST) is designed based on the limitations of nanosatellites and estimated to provide pointing ...
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A New Algorithm for Star Trackers: Frame Scoring
AIAA SPACE and Astronautics Forum and Exposition, 2017KARAGÖZ, İRFAN, DOĞAN, ALİ
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Star Detection Algorithm for Estcube-2 Star Tracker
2016Attitude determination is a very important aspect in the mission of spacecraft. There are various methods of determining the attitude of a spacecraft, including, but not limited to, magnetometers, beacons and gyroscopes.[1] Star Trackers are systems consisting of one or multiple image sensors connected to a processing unit.
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Star Selection algorithm for Arcsecond Pico Star Tracker
2018 AIAA Aerospace Sciences Meeting, 2018Vishnu Anand Muruganandan +5 more
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Star tracker algorithm improvements to restore performance after radiation exposure
Small Satellites Systems and Services Symposium (4S 2024)Rocket Lab's ST16-RT2 star tracker uses a CMOS detector to image stars in the sensor's field of view, software to isolate the stars in the image from the background, and an on-board catalogue to identify the stars in the image and, thus, determine the attitude of the satellite.
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Star Tracker Geometric Calibration Through Full-State Estimation Including Attitude
International Journal of Aeronautical and Space Sciences, 2022Hyosang Yoon
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Virtual Reality As a Testbed for Star Tracker Algorithms
AIAA Scitech 2019 Forum, 2019Neil McHenry +3 more
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Anti-noise Star Image Extraction Algorithm for Star Trackers Based on YOLOv5
2023 Intelligent Methods, Systems, and Applications (IMSA), 2023Feng Wu +7 more
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