Source: wikibot/hadamard-code
= Hadamard code
{wiki=Hadamard_code}
Hadamard code is a form of error-correcting code derived from the Hadamard matrix, which is a type of orthogonal matrix. The Hadamard code is used in communication systems and information theory to encode data such that it can be transmitted reliably over noisy channels. Its key property is that it can correct errors that occur during transmission, based on the redundancy it introduces.