• DocumentCode
    2095590
  • Title

    In orbit phase shift measurement on a satellite transponder

  • Author

    Belfort, Michel ; Guieysse, Michel ; Lermoyer, Alain

  • Author_Institution
    FRANCE TELECOM - CNET Paris B 38-40, rue du Général Leclerc, 92131 Issy-les-Moulineaux, FRANCE Tel: (33)1 45 29 55 65 Fax: (33)1 45 29 45 34
  • fYear
    1993
  • fDate
    6-10 Sept. 1993
  • Firstpage
    939
  • Lastpage
    940
  • Abstract
    Due both to frequency down conversion on board geostationary communication satellites and Doppler effect, phase shift versus input drive had never been directly measured in orbit. For TELECOM 2 in orbit test, we conceived a new method and set up a test bench to perform this measurement. This method is based on the cancellation of the frequency offsets mentioned above. Results obtained on TELECOM 2A and 2B are in good agreement with the expected values and this method improves greatly the accuracy and reproducibility of the Kp factor measurement.
  • Keywords
    Artificial satellites; Doppler effect; Extraterrestrial measurements; Frequency conversion; Frequency measurement; Performance evaluation; Phase measurement; Telecommunications; Testing; Transponders;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Microwave Conference, 1993. 23rd European
  • Conference_Location
    Madrid, Spain
  • Type

    conf

  • DOI
    10.1109/EUMA.1993.336775
  • Filename
    4136817
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=2095590