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PAM-4 twin SSB signal

(joined July 2019)
Participant

I need to generate PAM-4 or QAM twin SSB signal. How can first PAM 4 or QAM signal and how to convert in Right side band and Left side band.i am trying to generate through matlab box but not done. i success fully generate on mat lab but i cannot generate in Optisystem. please help me

Responses (3):

    • #53662
      Babar Ali
      Participant

      I need to generate PAM-4 or QAM twin SSB signal. How can first PAM 4 or QAM signal and how to convert in Right side band and Left side band.i am trying to generate through matlab box but not done. i success fully generate on mat lab but i cannot generate in Optisystem. please help me

    • #53729
      Profile Photo
      Ahmad Atieh
      Moderator

      Dear Babar,
      Attached is a block diagram that would help you working on SSB-SC modulation. You need to use the example library of OptiSystem for more information on how to create the PAM4 and QAM signals. The modulation in the block diagram is NRZ. You may find OptiSystem examples at the following link.
      C:\Users\USER NAME\Documents\OptiSystem 16.1 Samples\Advanced modulation systems
      regards,
      Ahmad

      +1
    • #53891
      Babar Ali
      Participant

      Hello everyone i hope you are doing well. I need your help. I make a system for QAM-256 But my output have some problems. its not clear. can you help me how can i correct this problem?I also attached the output screen shots.
      i also want BER and Eye results.

    • #53892
      Babar Ali
      Participant

      This is my outputs.

      Attachments:

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