Home Forums SYSTEM 4B3T Decoding

  • This topic has 6 replies, 2 voices, and was last updated 9 years ago by KSV.
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    • #16581
      KSV
      Participant

      Hello all,
      im trying to send a 4b3t sequence to a fiber and decode at the receiver side. But im not getting any signal after M-ary threshold detector. I’ve attached the optisystem file.

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    • #16596
      Damian Marek
      Participant

      Make sure that the bit rate in the M-ary detector reflects the actual bit rate and the the threshold amplitudes need to match the signal as well.

      Regards

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      • #18310
        KSV
        Participant

        Hi,
        I am unable to get the BER for 4B3T. But I am able to get the eye diagram.

        Attachments:
        • #18333
          Damian Marek
          Participant

          Hi,

          I’m getting a BER of 0 now. The problem was that you were comparing the original bit sequence to the ternary signal before being decoded.

          I used a BER Test Set instead as well.

          Regards

          Attachments:
        • #18883
          KSV
          Participant

          Hi Damian,
          im getting an error when I open the file saying “calculate…has a bad format” and :failed to load document from page”. Please help me

        • #18970
          Damian Marek
          Participant

          Your version might be older than mine. I am using 13.0.2

        • #18997
          KSV
          Participant

          Hi
          Reinstalling optisystem fixed the errors. Thank you

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