EE 105 Lecture 9-10-13 SG3(1)

If we receive 3682 in error as 3282 then from the

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Unformatted text preview: of the signal, noise is added, and the received 0 is showed by the second peak, which may be recorded as a 1, so that an error exists. This situation explains the function of redundancy. (9) Example of Redundancy. We want to send a 12 digit number, say 4729 3682 1743 We arrange it as 3 x 4 array. Redundancy here can be added as the last digit of the sum of the digits in each row, and the last digit of the sum of the digits in each column, followed by a check sum word determined from the last digits of the sum of the digits in each column, as below. 4729...
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