Star centroiding results no longer denote initial locations of star centroid because of the smearing effect. This locational error increases significantly when star sensors work in non-uniform rotation cases. Herein, a novel method is proposed to compensate this error. By taking angular acceleration into consideration, a more accurate stellar trajectory model is deduced first, followed by the derivation of compensation formula. Simulation results show that the proposed method can effectively compensate the extracted centroids to their initial locations. The systematic error caused by the proposed method is less than 0.05 pixels when the angular acceleration is 6.0 °/s2, which is negligible from engineering perspective.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Dynamic smearing compensation method for star centroding of star sensors


    Contributors:


    Publication date :

    2016-06-01


    Size :

    2830876 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



    Star Sensors and Harsh Environment

    Berrighi, G. / Procopio, D. / European Space Agency | British Library Conference Proceedings | 2003


    The Mariner spacecraft star sensors

    Goss, W. C. | NTRS | 1970


    Rolling Shutter Compensation for Star Trackers

    Enright, John / Dzamba, Tom | AIAA | 2012


    Compensation Method of Dynamic Angle Measurement for Missile-Borne Star Sensor

    Wu, Bin / Guo, ZhenXi / Ji, Denggao et al. | Springer Verlag | 2021


    Navigating with star tracking sensors

    MCCROSKEY ROBERT C / HAWKINSON WESLEY J / SANDERS STEVEN J et al. | European Patent Office | 2017

    Free access