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    • #47966
      ILAKIA REXILINE
      Participant

      SIR
      I am designing the MSK in OWC for 1000km. I can get the eye diagram and constellation diagram near the demodulator. But i cannot view the signal at end of the receiver side in oscilloscope visualizer and i cannot get the qfactor. I have attached the picture of my design. Can somebody help me to solve this problem.
      Waiting for acknowledgement

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    • #48042

      Hi Lakia,
      I can not figure out what the problem is with the OSC!!
      if you can send the .osd file and I will try to help as much as I can.
      In the mean time you can try to use a fork after the quadrature demodulator and use one side to the OSC and the other to the Eye visualizer (I know this solution is just to figure out is the visualizers are connected properly or not).

      thanks
      Mohamed

    • #48062
      ILAKIA REXILINE
      Participant

      Thank You for your response sir. I will try your suggestion sir.

    • #48063
      ILAKIA REXILINE
      Participant

      SIR,
      I have attached the .osd file for your reference sir.
      waiting for acknowledgement

      Attachments:
    • #48088
      ILAKIA REXILINE
      Participant

      Hello all,
      In my design of MSK the Qfactor and BER values were changing when ever i run my design. Can anyone tell me the reason for this problem.
      Waiting for acknowledment

    • #48089

      Hi ILakia,
      these changes might come from the Pseudo Random Bit sequence generator or noise included in the system!
      As you know there is some statistics in calculations like average and standard deviation on the eye diagram.

      hope this helps,
      thanks
      Mohamed

    • #48092
      ILAKIA REXILINE
      Participant

      Thank You for your response, sir. I will try your suggestion, sir.

    • #48110
      ILAKIA REXILINE
      Participant

      SIR,
      In my design, the Q-factor and BER were changing whenever I run the design can anyone help me to solve this problem, I cannot find the reason behind this. Here I attached my design for your reference.

      Waiting for Acknowledgement

      Attachments:
    • #48124

      Hi Ilakia
      I can not open your file, could you please send it again to try to help in this problem!!

      thanks
      Mohamed

    • #48151
      ILAKIA REXILINE
      Participant

      Sir,
      Thank you for your response sir.I have attached the design. I hope now you can open my design file.
      Waiting for acknowledgement

      Attachments:
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