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Deltahedron (talk | contribs) →Merged Walsh–Hadamard code into Hadamard code: So the short answer to the question is ''No'' |
Will Orrick (talk | contribs) |
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::call it Walsh code or Walsh family. They note that the "Walsh family can be interpreted as a subcode of the first-order Reed-Muller code". If you study these references, you will see that the definitions match the "Hadamard code" or the "punctured Hadamard code". Sorry I don't have a better answer, but I do believe that there should only be a single article on this object. [[User:Ylloh|ylloh]] ([[User talk:Ylloh|talk]]) 20:20, 21 February 2013 (UTC)
:::So the short answer to the question is ''No''. In future please wait for a consensus of informed editors before following your own [[WP:OR|personal research]]. [[User:Deltahedron|Deltahedron]] ([[User talk:Deltahedron|talk]]) 22:40, 21 February 2013 (UTC)
:::The book
:::* {{Citation
| last1=Du | first1=K-Lin
| last2=Swamy | first2=M. N. S.
| title=Wireless Communication Systems: From RF Subsystems to 4G Enabling Technologies
| publisher=Cambridge University Press
| year=2010
}}
:::contains the statement "The Walsh codes, also known as the ''Walsh–Hadamard codes'', are generated by rearranging the Hadamard codes".
:::One thing one must be careful of is that the word "code" has a different meaning in the wireless communication literature than it does in the mathematics and computer science literature. Where the wireless communication literature says "code", the mathematics literature says "codeword"; in mathematics, a code is a set of codewords. By my reading, the quote above is saying that the Walsh and Hadamard codes (in the sense of mathematics) consist of the same codewords, but that the codewords are ordered differently. This bears further investigation: in particular, I have not found where "Hadamad code" is defined in the reference above [[User:Will Orrick|Will Orrick]] ([[User talk:Will Orrick|talk]]) 02:37, 22 February 2013 (UTC)
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