Abstract
The sets of nonbinary pseudorandom sequences (NPSs) for periods N = pS – 1 < 20 000 (p = 3, 5, 7, and 11) generated in finite fields GF(pS) whose power is V = N + 1 and the maximum of the module of peaks of the periodic autocorrelation function (PACF) and periodic cross-correlation function (PCCF) satisfy the bounds obtained by Sidel’nikov. In addition to the minimal polynomials of elements \({{\alpha }}\) and \({{{{\alpha }}}^{2}}\), where α is a primitive element of field GF(pS), the minimal polynomials of elements \({{\alpha }}\) and \({{{{\alpha }}}^{{{{i}_{{\text{d}}}}}}}\) (id is the decimation index) are determined on the basis of which the new sets of NPSs can be formed with the equivalent correlation properties. Sets of indices id > 2 are determined for various combinations of parameters p and S. The cases of even and odd values of parameter S are considered, for which the values of the PACF and PCCF with the maximum module are obtained and the number and values of different levels of correlation functions are determined.
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Translated by E. Oborin
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Starodubtsev, V.G. Sets of Nonbinary Sequences with a Low Level of Mutual Correlation for Systems of Digital Information Transmission. J. Commun. Technol. Electron. 68, 135–140 (2023). https://doi.org/10.1134/S1064226923020134
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DOI: https://doi.org/10.1134/S1064226923020134