Frequency-Modulated Antipodal Chaos Shift Keying Chaotic Communication on Field Program Gate Array: Prototype Design and Performance Insights
Applied Sciences 2025
Filips Čapligins, Ruslans Babajans, Darja Čirjuļina, Deniss Kolosovs, Anna Litviņenko

Using chaos for communication can provide more robust channel security, covert transmission, and inherent support for spread-spectrum modulation. Although numerous studies have explored this technology, its practical deployment remains limited due to substantial hardware demands, complex signal processing, and a lack of efficient modulation methods for chaotic signals. In this study, a novel chaotic digital communication system is proposed and studied. A prototype of a frequency-modulated antipodal chaos shift keying (FM-ACSK) system is implemented on an Intel Cyclone V field-programmable gate array (FPGA) along with a complete mathematical model using Matlab R2022a Simulink software. Using FPGAs to implement chaotic oscillators avoids analog system problems such as component drift and high thermal instability while providing determined system parameters, rapid prototyping, and high throughput. The employment of FM over a chaotic modulation layer provides a passband operation (currently at an intermediate frequency of 10.7 MHz) while adding the benefits of carrier frequency offset robustness and constant signal envelope. Within this study, the robustness of FM-ACSK to white noise in the channel was evaluated using bit error rate, which was tested through hardware experiments and simulations. The results show the feasibility and potential performance limitations of this approach to chaotic communication system design.


Atslēgas vārdi
chaos; chaotic communications; secure communication system; chaotic systems; signal processing; chaos synchronization; FPGA; chaos shift keying
DOI
10.3390/app15031156
Hipersaite
https://www.mdpi.com/2076-3417/15/3/1156

Čapligins, F., Babajans, R., Čirjuļina, D., Kolosovs, D., Litviņenko, A. Frequency-Modulated Antipodal Chaos Shift Keying Chaotic Communication on Field Program Gate Array: Prototype Design and Performance Insights. Applied Sciences, 2025, Vol. 15, No. 3, Article number 1156. e-ISSN 2076-3417. Available from: doi:10.3390/app15031156

Publikācijas valoda
English (en)
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