AbstractScience return and high bandwidth communications are one of the key issues to support the foreseen endeavours on next generation missions [J.L. Gerner, Telemetry, tracking and command of satellites—a perspective, TT&C 2004 Workshop, 7–9 September 2004]. Interplanetary telecommunication systems are required that support the foreseen endeavours. Given the same constraints in terms of mass, power and volume a laser communications terminal can offer an increase in telemetry bandwidth over classical RF technology allowing for a variety of new options, specifically to missions that require large distances, such as to the Moon, to liberation points L1 and L2, ultimately aiming at deep space missions. An increase in telemetry data rate allows the mission to consider the processing of raw scientific data to take place on ground, making use of latest technology further developed during the cruise phase of the probe, rather than applying data pre-processing on-board the satellite. Enhanced sensing techniques that generate more science data return could be used and access to data during flight could be faster. Results of on-going activities will be presented, comprising PPM laser communications and advanced tracking concepts. An overview will be given of the system concept for an integrated RF-optical TT&C transponder. Results will be shown from hardware tests on communications performance in inter-island test campaigns.


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    Title :

    Integrated RF-optical TT&C for interplanetary telecomms


    Contributors:
    Dreischer, T. (author) / Tuechler, M. (author) / Kudielka, K. (author) / Baister, G. (author)

    Published in:

    Acta Astronautica ; 65 , 11-12 ; 1772-1782


    Publication date :

    2009-05-11


    Size :

    11 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




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