Talk:Parity-check matrix

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Definition edit

Latest comment: 13 years ago2 comments2 people in discussion

Should the code definition be Hc^T=0 instead of H^Tc=0? --169.235.24.187 (talk) 00:32, 12 March 2009 (UTC)Reply

Depends on which book you read it from. Either way, this article could do with some consistency, in choice of symbols too. 80.6.149.158 (talk) 13:55, 24 May 2010 (UTC)Reply

Creating Parity-check matrix edit

Latest comment: 15 years ago2 comments2 people in discussion

The two equations for G and H only hold if the linear code is systematic. I propose a change to indicate so. Phosphoricx (talk) 03:38, 24 April 2008 (UTC)Reply

I think, the is a minus missing in the equation for H. In the current form it is only correct for binary codes. However, the explanation for binary codes is there, but not for code using other finite fields. If I am correct, it is

H={\begin{bmatrix}-P^{T}|I_{n-k}\end{bmatrix}}

--Sporenfrosch (talk) 00:33, 21 January 2009 (UTC)Reply

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