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Communication system problem

  1. Oct 12, 2016 #1
    • Member advised to retain and use all sections of the formatting template.
    1. The problem statement, all variables and given/known data
    Hi everyone. I was trying to solve an exercise from the book Leon couch, communication systems, number 3.7 of the 6th edition. This is the statement:
    In a PCM binary system, the quantisation noise mustn t exceed the percentage value P of the peak power. Show that the required number of bit for each word is:

    N> log2(10)*log(50/P).

    I tried to solve it by applying this reasoning :
    The s/n ratio is equal to 3M^2 for a PCM system. Then
    If N<(p/100)*s, then s/n>(100/p). Then I solve it by passing to decibel, and making the logaritm, but I obtain something quite different, and I don t undestand where I was wrong.
  2. jcsd
  3. Oct 12, 2016 #2
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