• DocumentCode
    1231144
  • Title

    TTT System (50 Mbits/s PCM-TDMA System With Time Preassignment and TASI) and Its Satellite Test Results

  • Author

    Nosaka, Kunishi ; Sasaki, Hiroshi ; Amano, Kitsutaro ; Michishita, Hisakichi

  • Author_Institution
    Kokusai Denshin Denwa Company, Ltd., Tokyo, Japan
  • Volume
    20
  • Issue
    4
  • fYear
    1972
  • fDate
    8/1/1972 12:00:00 AM
  • Firstpage
    820
  • Lastpage
    825
  • Abstract
    An experimental 50 Mbits/s pulse-code modulation-time-division multiple access (PCM-TDMA) system with time preassignment and time-assignment speech interpolation (TASI) features (called the TTT system) was built for use in a satellite test. This system was designed for application in the INTELSAT IV network and has the channel capacity of more than 700 telephone channels. This capacity can be increased up to twice when pulse-code modulation-time-assignment speech interpolation (PCM-TASI) is adopted. The field test was conducted via INTELSAT III in 1970 and satisfactory results were obtained, which encourages the introduction of the TDMA system for commercial use.
  • Keywords
    Circuits; Phase change materials; Phase shift keying; Pulse measurements; Pulse modulation; Satellite ground stations; Signal processing; System testing; Time division multiple access; Timing;
  • fLanguage
    English
  • Journal_Title
    Communications, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0090-6778
  • Type

    jour

  • DOI
    10.1109/TCOM.1972.1091220
  • Filename
    1091220
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1231144