DOI: 10.21047/1606-4313-2016-15-3-31-36


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Article in Russian

For citation: Makarov S.S. Numerical simulation of cooling process for metal cylinder by gas-liquid medium flow moving horizontally in annular channel. Scientific and Technical Journal of Information Technologies, Mechanics and Optics, 2017, vol. 17, no. 2, pp. 324–331 (in Russian). doi: 10.17586/2226-1494-2017-17-2-324-331

A new method is proposed for generation of pseudo-noise signals. The method uses M-sequences with non-multiple recurring periods. Results of mathematical simulation of correlation and spectral characteristics of combined sequences are presented, comparison with Gold sequences is performed. The influence of the number of characters and the clock frequency of the original sequences on the characteristics of the combined sequences is studied. The histograms of distribution of side lobes levels for different combinations of number of characters and the clock frequency of the original sequences are presented.

Keywords: pseudorandom sequences, equivalent linear complexity, correlation characteristics, spectral characteristics, mathematical number theory

Acknowledgements. This study was supported in part by the Russian Foundation for Basic Research (project No. 16-02-00399). The authors are grateful to S.Y. Belova for profilometric measurements.

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