DocumentCode
1108616
Title
Some Comments on the Fast Hadamard Transform of Order Twelve
Author
Kennedy, J. Dennis
Issue
5
fYear
1971
fDate
5/1/1971 12:00:00 AM
Firstpage
588
Lastpage
590
Abstract
An algorithm for a fast matrix transform of order twelve was given by Pratt [1]. The resulting transform matrix consists of plus and minus ones, is in order of sequency, but is not orthogonal, and hence is not a Hadamard matrix. This note proves it is impossible to construct a Hadamard matrix of order twelve with this increasing sequency property and gives a corrected algorithm of order twelve.
Keywords
Algorithm, data reduction, Hadamard matrix, Hadamard transform, matrix factorization.; Data handling; Fourier transforms; Frequency; Algorithm, data reduction, Hadamard matrix, Hadamard transform, matrix factorization.;
fLanguage
English
Journal_Title
Computers, IEEE Transactions on
Publisher
ieee
ISSN
0018-9340
Type
jour
DOI
10.1109/T-C.1971.223305
Filename
1671898
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