CRC 校验码
问题1设发送信息为11011011,生成多项式g(x)=x5+x3+x2+1,求CRC 校验码。 解答:发送数据为f(x)=11011011,多项式g(x)=101101
11111100
01100000000
001100
_____________000000
000110
___
__________101101
101110
___
__________101101
111010
___
__________101101
110000
___
__________101101
110101
___
__________101101
110111
___
__________101101
000
1101101100101101aaaaaaaa aaaaaaa aaaaaaa aaaaaa aaaaaa aaaaa aaaaa aaaa aaaa aaa aaa aa aa a a
所以校验字段R(x)=01100
则接受数据为f `(x)=1101101101100; 验证接受的正确性:
11111100
000000
___
__________101101
101101
_____________101101
111011
___
aaaaaaaaaaaaaaaaaa__________101101
110000
___
__________101101
110101
___
__________101101
110111
___
__________101101
100
1101101101101101aaaaaa aaaaa aaaaa aaaa aaaa aaa aaa aa aa a a
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