error-correction

Hamming code given a generator matrix question

Hello All Can I just say from the outset that this isn't a homework question as I'm way to old for that. But is related to an open source radio decoder project I'm working on .. http://github.com/IanWraith/DMRDecode Part of the radio protocol I'm interested uses a Hamming (7,4,3) code to protect 4 bits in a particular part of a data ...

Error correction code for non-uniform errors on non-binary channel?

If you ask a person to type in a page full of random hand written 20 digit numbers, I would expect that you would see different errors occur with non uniform frequency (e.g. switching 6 and 5 or 3 and 8 would be more common than 7 and 0). Are there any error correction codes that incorporate that sort of error functions into there constr...