Menu
Home / ECE / Communication Systems :: Discussion

Discussion :: Communication Systems

  1. In PCM, if the number of quantization levels is increased from 4 to 64, then the bandwidth requirement will approximately be increased __________ times.

    2. A.
    8
    B.
    16
    C.
    3
    D.
    32

    View Answer

    Workspace

    View Answer

    Answer : Option C

    Explanation :

    Bandwidth for PCM system

    = 2nN fm Hz for N >> 1, n >> 1

    where n is no. of channel, N is no. of bit.

    B1 = 2n N1 fm

    B2 = 2n N2 fm

    2N1 = 4 N1 = log24 N1 = 2

    2N2 = 64 N2 = log264 6

    .

Write your comments here:

Be The First To Comment