D
Darja Cirjulina
Researcher at Riga Technical University
Publications - 7
Citations - 33
Darja Cirjulina is an academic researcher from Riga Technical University. The author has contributed to research in topics: Communications system & Chaotic. The author has an hindex of 2, co-authored 7 publications receiving 8 citations.
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Journal ArticleDOI
Impact of the Chaotic Synchronization’s Stability on the Performance of QCPSK Communication System
Ruslans Babajans,Darja Cirjulina,Juris Grizans,Arturs Aboltins,Dmitrijs Pikulins,Maris Zeltins,Anna Litvinenko +6 more
TL;DR: The current work presents a study of the implementation of a quadrature chaos phase-shift keying communication system (QCPSK) based on the employment of different chaos oscillators using the bit error ratio as the estimation method for the QCPSK system’s baseband model performance in the AWGN propagation channel.
Proceedings ArticleDOI
Noise Immunity of Substitution Method – based Chaos Synchronization in Vilnius Oscillator
TL;DR: The current work presents the application of the substitution method - based chaos synchronization for a pair of Vilnius chaos oscillators, which involves both the simulation and the experimental hardware approaches that use correlation coefficient estimation as a measure for the synchronization evaluation between two Chaos oscillators.
Proceedings ArticleDOI
Experimental Study of the Impact of Component Nominal Deviations on the Stability of Vilnius Chaotic Oscillator
Darja Cirjulina,Dmitrijs Pikulins,Ruslans Babajans,Davis Daniels Anstrangs,Iheanacho Chukwuma Victor,Anna Litvinenko +5 more
TL;DR: A vast amount of different electronic oscillators with chaotic behavior have been proposed in the literature, but for this study a Vilnius chaotic oscillator (VCO) has been chosen because of its low cost and secure communication between wireless sensor nodes.
Proceedings ArticleDOI
Influence of Element Nominal Values on Chaos Oscillator Dynamics and Synchronization
TL;DR: A vast amount of different electronic oscillators with chaotic behavior have been proposed in literature, but for this study a simple two transistor oscillator has been chosen and the most sensitive elements were identified, and the regions of stable operation revealed.
Proceedings ArticleDOI
Chaotic Synchronization for Data Transmission Systems
TL;DR: This communication system can be used for secure data transmission in wireless sensor networks (WSNs) or IoT solutions and the impact of difference in initial conditions of both chaos oscillators (transmitter and receiver side) on the chaotic synchronization is investigated.