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Issue No.08 - August (1977 vol.26)
pp: 819-822
R.D. Brown , Computer Sciences Corporation
ABSTRACT
An algorithm has been developed for calculating sequency-ordered fast Walsh-Fourier transforms (FWT's) using an additive recursion formula. Sequency-ordered FWT's of an N-dimensioned sampled data set are generated by a summation recursion of FWT's on subintervals of the data set. The algorithm is fast (N log2 N summations), computer efficient, and can be applied to time-dependent spectral analysis of nonstationary phenomena such as speech.
INDEX TERMS
Sequency-ordered Walsh transform, time-dependent spectral analysis, Walsh-Fourier transform.
CITATION
R.D. Brown, "A Recursive Algorithm for Sequency-Ordered Fast Walsh Transforms", IEEE Transactions on Computers, vol.26, no. 8, pp. 819-822, August 1977, doi:10.1109/TC.1977.1674921
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