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Tx Signal: 1000 Hz sine wave; Attenuation; Random noise with 0.5ms - PowerPoint PPT Presentation

Feb 26, 2024 •94 likes •158 views

Tx Signal: 1000 Hz sine wave; Attenuation; Random noise with 0.5ms spike Tx Signal Noise Rx Signal Tx Signal: 1000 Hz square wave; Attenuation; Random noise with 0.5ms spike Tx Signal Noise Rx Signal What about a signal with 2 levels vs a

  1. Tx Signal: 1000 Hz sine wave; Attenuation; Random noise with 0.5ms spike Tx Signal Noise Rx Signal

  2. Tx Signal: 1000 Hz square wave; Attenuation; Random noise with 0.5ms spike Tx Signal Noise Rx Signal

  3. What about a signal with 2 levels vs a signal with 4 levels: which one will have more bit errors for some given noise?

  4. Rx (2 levels) Rx (4 levels)

  5. Signal with 4 levels has more chance of bit errors. Smaller separation between levels; higher chance noise causes signal at one level to be received at one of the other 3 levels Rx (2 levels) Rx (4 levels)

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