A Brightness-Referenced Star Identification Algorithm for APS Star Trackers [PDF]
Sensors, 2014 Star trackers are currently the most accurate spacecraft attitude sensors. As a result, they are widely used in remote sensing satellites. Since traditional charge-coupled device (CCD)-based star trackers have a limited sensitivity range and dynamic ...
Peng Zhang +3 more
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Exposure Time Optimization for Highly Dynamic Star Trackers [PDF]
Sensors, 2014 Under highly dynamic conditions, the star-spots on the image sensor of a star tracker move across many pixels during the exposure time, which will reduce star detection sensitivity and increase star location errors.
Xinguo Wei +3 more
doaj +5 more sources
Fast Star Matching Method Based on Double K-Vector Lookup Tables for Multi-Exposure Star Trackers [PDF]
Sensors, 2021 A high update rate is always one of the vital indices of star trackers. By recording star positions at N moments within a single star image, the multi-exposure imaging approach (MEIA) proposed in an earlier study can improve the attitude update rate of ...
Wenbo Yu +4 more
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Reducing Systematic Centroid Errors Induced by Fiber Optic Faceplates in Intensified High-Accuracy Star Trackers [PDF]
Sensors, 2015 Compared with traditional star trackers, intensified high-accuracy star trackers equipped with an image intensifier exhibit overwhelmingly superior dynamic performance.
Kun Xiong, Jie Jiang
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Optical System Error Analysis and Calibration Method of High-Accuracy Star Trackers [PDF]
Sensors, 2013 The star tracker is a high-accuracy attitude measurement device widely used in spacecraft. Its performance depends largely on the precision of the optical system parameters.
Zheng You, Fei Xing, Ting Sun
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Ground Testing Strategies for Verifying the Slew Rate Tolerance of Star Trackers [PDF]
Sensors, 2014 The performance of a star tracker is largely based on the availability of its attitude solution. Several methods exist to assess star tracker availability under both static and dynamic imaging conditions.
Tom Dzamba, John Enright
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Improved triangular-based star pattern recognition algorithm for low-cost star trackers
Journal of King Saud University: Computer and Information Sciences, 2021 Star identification algorithms based on triangular-pattern are more suitable for low-cost star trackers since they require less star density in the field of view to operate effectively.
Abderrahim Nabi +2 more
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Low-Frequency Error Extraction and Compensation for Attitude Measurements from STECE Star Tracker
Sensors, 2016 The low frequency errors (LFE) of star trackers are the most penalizing errors for high-accuracy satellite attitude determination. Two test star trackers- have been mounted on the Space Technology Experiment and Climate Exploration (STECE) satellite, a ...
Yuwang Lai +4 more
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MINISTAR to STARLITE: Evolution of a Miniaturized Prototype for Testing Attitude Sensors [PDF]
SensorsStar trackers are critical electro-optical devices used for satellite attitude determination, typically tested using Optical Ground Support Equipment (OGSE).
Vanni Nardino +11 more
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Space Debris Detection and Positioning Technology Based on Multiple Star Trackers
Applied Sciences, 2022 This paper focuses on the opportunity to use multiple star trackers to help space situational awareness and space surveillance. Catalogs of space debris around Earth are usually based on ground-based measurements, which rely on data provided by ground ...
Meiying Liu +7 more
doaj +3 more sources