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QAM 256 Result Problem

(joined July 2019)
Participant

I want to calculate the BER. MY output of the cancelation diagram is correct but BER is 1. I also add a result digram. Can anyone guide me on how to solve this issue?

Attachments:

Responses (2):

    • #55546
      Babar Ali
      Participant

      I want to calculate the BER. MY output of the cancelation diagram is correct but BER is 1. I also add a result digram. Can anyone guide me on how to solve this issue?

      Attachments:
    • #55670
      Profile Photo
      Ahmad Atieh
      Moderator

      Dear Ali,
      If the constellation diagram looks fine and the eye looks very clean as shown in the image you’ve attached, then there is an issue with setting up (connection) the BER test set.
      It is too difficult to provide guidance without have access to your project. Will you be able to email it to me at ahmad.atieh@optiwave.com as a zip file, and I’ll try to help?

      Regards,
      Ahmad

    • #55713
      Babar Ali
      Participant

      Thanks for the reply. I attached the BER analyzer at the output of DSP. Two input with DSP output and one with parallel to serial after the Demodulation. I also send the snape Your email.

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