题

I know that to find an error in signal we have to divide given signal with given polynomial and if 0 remains there is no error. But if I have received signal: 0000 0101 0101 0000 1010 0101 and polynomial 10001000000100001(CRC-CCITT) how do I Xor them:

1010101000010100101 (signal without zeroes)

XOR

10001000000100001

Or

000001010101000010100101 (original signal)

XOR

10001000000100001

Also do I remove beginning 0 from signal or leave them ? Thanks in advance

Here is what I think, do I perform xor on 1. or on 2. example?

没有正确的解决方案

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