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A New Approach to Determine the Centroid of Star Spot for Star Tracker Based on MEMS-Gyro
Key Engineering Materials, 2013Along with the development of MEMS technology, the precision of MEMS-Gyro is increasing and the range of application of MEMS-Gyro is expanding. The accuracy of centroid determination of the spot directly relates to the precision of star tracker, but, when the exposure time is shorter or the satellite is in an unstable state, the noise of detector ...
Nan Chen, Fei Xing, Zheng You
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Accuracy Analysis of Centroid Detection Method Used to Star Sensor
Advanced Materials Research, 2012Star sensor is important equipment for measuring satellite attitude and motion, and star centroid detection accuracy is the basis of the overall accuracy of star sensor. In star sensors, slightly- defocus method is often adopted to acquire dispersive light spots so as to facilitate centroid detection, and certain motion blur can also be introduced ...
Qi Li, Wei Xu, Zhi Hai Xu, Hua Jun Feng
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Implementation of star centroid extraction based on FPGA
Thirteenth International Conference on Graphics and Image Processing (ICGIP 2021), 2022Jianqun Ding +4 more
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Compensation for Star Centroid Systematic Error of Star Trackers
Chinese Journal of Lasers, 2015姜亮 Jiang Liang +3 more
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Algorithm for estimating star centroids in blurred space images
Journal of Instrument EngineeringDynamic shooting conditions create the effect of blurring images, which leads to distortion of the recorded scene. To ensure the necessary efficiency of the star sensor, additional image processing methods aimed at compensating for distorting factors are required. An algorithm for estimating the centroids of stars in blurred images based on the methods
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Star centroid extraction in a single-line detector array
Image and Signal Processing for Remote Sensing XXVIII, 2022Zhexin Han, Sijia Qiao, Haopeng Zhang
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Artificial neural network for star tracker centroid computation
Advances in Space Research, 2023P.R. Zapevalin +2 more
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Star centroid estimation and parameter calibration for 3CMOS star sensor
2025 International Conference on Aerospace Information Perception and Intelligent Processing (AIPIP)Yanzhao Niu +3 more
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High-Accuracy Star Sensor Centroid Algorithm Based on Star Image Resampling
Acta Optica Sinica, 2019曹阳 Yang Cao +3 more
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Centroiding Method for Star Image Spots under Interference of Sun Straylight Noise in a Star Sensor
Guangxue Xuebao/Acta Optica Sinica, 2021exaly