Algorithms for the calculation of Hadamard-Walsh spectrum for completely and incompletely specified Boolean functions
B.J. Falkowski, Marek A. Perkowski · 1990
The authors describe two algorithms for the calculation of the forward Hadamard-Walsh transform for completely and incompletely specified Boolean functions. The first method is based on direct manipulation from Karnaugh maps. The conversion starts from Karnaugh maps and results in Hadamard-Walsh spectral coefficients. The second algorithm makes use of the properties of a disjoint-cube-array representation of Boolean functions.>