Space optical communications is studied at National Institute of Information and Communications Technology, where the Small Optical TrAnsponder (SOTA) was developed and embarked on a 50-kg-class satellite. Atmospheric fluctuation is an issue to be solved in ground-to-satellite optical communication links. The SOTA has error-correcting functions using Reed–Solomon code and low-density generator matrix (LDGM) code to prevent the omission of data from signal fading owing to atmospheric fluctuations. In this paper, we present a demonstration that involves sending image data taken by an onboard camera with LDGM code via satellite-to-ground optical communication links. Our demonstration reveals how to correct the omission of data resulting from atmospheric turbulence and tracking errors.


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    Title :

    Low-density generator matrix code for correcting errors with a small optical transponder


    Contributors:


    Publication date :

    2015-10-01


    Size :

    593224 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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