推 nana0130:感謝你~ 10/24 02:50
※ 引述《nana0130 (小那)》之銘言：
: 我看不太懂題目的意思，傳送跟接受那個部份
: A certain binary communication system has a bit-error
: rate of 0.1 i.e, in transmitting a single bit.
: the probability of receiving the bit in error is 0.1.
: To transmit messages, a three-bit repetition code is used
: In other words, to send the message 1, 111 is transmitted ,
: and to send the messages 0, 000 is transmitted .
: At the receiver, if two or more 1s are received ,
: the decoder decides that messages 1 was sent; otherwise, i.e,
: if two or more zeros are received, it decides that messages 0 was sent.
: Assuming bit errors occur independently .
: find the probability that the decoder puts out the wrong message.
我的理解
再傳送一個 bit 的時候 有 0.1 的機率 傳錯數字
再接收一個 bit 的時候 也有 0.1 的機率 收錯數字
要傳送出 1 這個訊息 ， 會傳出 111 這組密碼 (這算三個bit)
接收端 如果收到 兩個 或 三個 1 就會把他解讀成 1
問 解讀者 解錯訊息的機率~
應該是問題目的意思 所以過程就留給你囉~
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