95年高考資料通訊 - 高考
By Leila
at 2013-04-22T06:30
at 2013-04-22T06:30
Table of Contents
考慮使用一個CRC碼做資料訊框傳輸的錯誤偵測。假設CRC碼的生成多項式為
g(X)=X(4次方)+X+1,原始訊息長度為12位元,傳輸的訊框長度為16位元
(一)如果原始訊息為100110011100,則編碼後之訊框為何?
A:這小題有算出來,答案為100110011100(0010)
(0010)即為餘數,商為100000011110
(二)試舉出2個無法偵測出來且權重不同的錯誤形態
A:這小題就不清楚怎麼推導了,請高手賜教
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