Improving the efficiency of Hadamard matrix mining for digital conversion methods

Abstract

. The problem of searching for Hadamard matrices is considered as mining, which includes setting initial conditions, choosing matrix designs, and "enriching" a set of sequences through filtering the Fourier spectra of sequences. Mining difficulties are analyzed and a way to overcome them is considered. Examples of the choice of the Propus design, pre-filtering of the generated sequences to speed up calculations are given.