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Recent content by mg777

  1. M

    How can we measure the BER if we assume a QAM signal is to be sent?

    how to calculate ber calculation The situation you describe holds for other situations as well e.g; Poisson. Provided you can invoke the Central Limit Theorem you can arm wave your way through a Gaussian approximation. So, the bottom line is you'll do well to compare a Gaussian approximation...
  2. M

    Which is the best software for PCB design?

    good pcb design software I'm not sure if the original poster was designing a board for mass manufacture. If so, don't forget design for manufacturing (DFM) - as different from the DRC that a board house will perform. You will be amazed how many little devilish details can send a fine-pitch BGA...
  3. M

    what is "one-tap equalizer"?

    what is the taps of equalizer If your channel is low-pass (integrating) then you can compensate or equalize it by a high-pass operation (differentiation). In a discrete time system the derivative of a signal y is dy/dn = y(n)-y(n-1), where the index n represents time. Clearly, y(n-1)...
  4. M

    What type of analysis tools are eye diagrams ??

    Re: Eye diagrams.. ?? Try **broken link removed** Also check out the EYECALC eye diagram simulator. **broken link removed**

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