The paper deals with the features of construction and search of two cyclic Hadamard matrices, whose implementation variants are characterized by non-symmetry of one of the two blocks of the matrix structure. The basis of their construction is the analytical theory of difference equations based on Fermat–Euler theorem. A numerical method for finding two cyclic blocks, which are the basis for the construction of Hadamard matrices, is developed. This method accelerates a trivial search of the desired sequence, thus distributing them in different bins. The method implementation uses a hash function. As a result, a wide set of new Hadamard matrices was found. New versions of Hadamard matrices of orders 100 and 116 were also obtained.
CITATION STYLE
Balonin, Y., Abuzin, L., Sergeev, A., & Nenashev, V. (2019). The study of generators of orthogonal pseudo-random sequences. In Smart Innovation, Systems and Technologies (Vol. 143, pp. 125–133). Springer Science and Business Media Deutschland GmbH. https://doi.org/10.1007/978-981-13-8303-8_11
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