Testing of the Advanced Video Guidance Sensor (AVGS) used for proximity operations navigation on the Orbital Express ASTRO spacecraft exposed several unanticipated imaging system artifacts and aberrations that required correction to meet critical navigation performance requirements. Mitigation actions are described for a number of system error sources, including lens aberration, optical train misalignment, laser speckle, target image defects, and detector nonlinearity/noise characteristics. Sensor test requirements and protocols are described, along with a summary of test results from sensor confidence tests and system performance testing.


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    Title :

    Effects of optical artifacts in a laser-based spacecraft navigation sensor


    Contributors:

    Conference:

    Sensors and Systems for Space Applications ; 2007 ; Orlando,Florida,United States


    Published in:

    Publication date :

    2007-04-26





    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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