FAINTSTAR: an intelligent single-chip sensor head for star trackers—prototype results
Sign Up to like & getrecommendations! Published in 2018 at "CEAS Space Journal"
DOI: 10.1007/s12567-018-0220-x
Abstract: Since 2003 the European Space Agency’s roadmap for star tracker CMOS APS (active pixel) image sensors has included developments to integrate significant logic functionality with the pixel array, aiming at an imaging system-on-chip. FaintStar (FS)… read more here.
Keywords: image; faintstar intelligent; star; star trackers ... See more keywords
GOCE star tracker attitude quaternion calibration and combination
Sign Up to like & getrecommendations! Published in 2019 at "Advances in Space Research"
DOI: 10.1016/j.asr.2018.10.030
Abstract: Abstract We analyse the inter-boresight angles (IBA) measured by the star trackers on board the GOCE satellite and find that they exhibit small offsets of 7–9″ with respect to the ones calculated from the rotation… read more here.
Keywords: star; star tracker; star trackers; tracker attitude ... See more keywords
Autonomous Recalibration of Star Trackers
Sign Up to like & getrecommendations! Published in 2018 at "IEEE Sensors Journal"
DOI: 10.1109/jsen.2018.2857621
Abstract: Star trackers must be calibrated prior to flight so that they can make accurate measurements of star positions within the instrument field of view. This calibration is usually performed in atmosphere and after the sensor… read more here.
Keywords: star trackers; autonomous recalibration; star; recalibration star ... See more keywords
Neural Network Calibration of Star Trackers
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Transactions on Instrumentation and Measurement"
DOI: 10.1109/tim.2022.3218556
Abstract: To maintain ideal performance, star trackers must be able to predict the direction of incident starlight to within a few arcseconds across the entire instrument field of view (FOV). Parametric camera models are commonly used… read more here.
Keywords: neural network; star; star trackers; calibration ... See more keywords
Centroid determination hardware algorithm for star trackers
Sign Up to like & getrecommendations! Published in 2020 at "International Journal of Sensor Networks"
DOI: 10.1504/ijsnet.2020.10026206
Abstract: The execution of centroid extraction algorithms using a microprocessor consumes considerable resources when compared to the other steps involved in star trackers. This paper presents a method to identify star centroids in star trackers by… read more here.
Keywords: star trackers; centroid determination; star; determination hardware ... See more keywords