New Barker’s composite codes as modulation signals in broadband communication systems
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Дата
2022
Науковий керівник
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Видавець
National Technical University of Ukraine "Igor Sikorsky Kyiv Polytechnic Institute"
Анотація
Background. Currently noise-like signals (NLS) are widely used and provide high level of jamming immunity and security in broadband communication systems (BСS) when transmitting confidential information in an open radio channel, especially in emergencies. Increasing the efficiency of the NLS is possible when using more advanced code structures. Objective. The purpose of this research is to study new Barker’s composite codes as modulation signals in broadband communication systems. Method. Simulation modeling based on MatLab software package and analytical calculation methods are used. Results. Modeling in the MatLab software package showed the possibility for using new Barker’s composite codes as modulation signals in direct spread spectrum systems but efficiency depends on code words length as well as type synchronization signal. Conclusions. Analysis of research results shows that the new Barker composite codes 21a, 33a, 49, 77a, 121 can be effectively used as modulation code words in broadband systems with direct spectrum expansion.
Опис
Ключові слова
Barker codes, коди Баркера, composite Barker codes, композитні коди Баркера, broadband communication systems, широкосмугові системи зв’язку, autocorrelation function, автокореляційна функція
Бібліографічний опис
Maksymov, V. New Barker’s composite codes as modulation signals in broadband communication systems / Volodymyr V. Maksymov, Vyacheslav I. Noskov, Igor A. Khrapovytsky // Information and telecommunication sciences : international research journal. – 2022. – Vol. 13, N. 2. – Pp. 15-20. – Bibliogr.: 8 ref.