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85问答库 > CRC检验生成多项式G(X)=X^4+X+1对应的二进制序列码10011是怎么求出来的？？？急急

CRC检验生成多项式G(X)=X^4+X+1对应的二进制序列码10011是怎么求出来的？？？急急

2025-04-07 02:51:40

推荐回答（1个）

回答1：

从末位开始，判断是否为x的几次幂，是就为1，否则为0.如上g（x）中有x的0次、1次和4次幂，则在对应的位置上有10011，从最后一位开始写。
有x的用1表示,没有的用0表示。
原式中最后的1相当于x的0次方。
最高位4次方有x那就是1,3次方和2次方没有就是0,1次方和0次方有x,就用1表示.合起来就是10011
上面的网友第二个g(x)=x^4+x^3+1应该是11001

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