METHOD OF SYNTHESIS OF COMPLEX SIGNAL SYSTEMS FOR IMPLEMENTATION OF THE DYNAMIC OPERATION MODE OF A SPACE COMMUNICATION AND CONTROL SYSTEM
Рубрика:
| Stasіev, Y, Khmelevskyi, S, Parkhomenko, M, Korolyuk, N |
| Space Sci. & Technol. 2026, 32 ;(3):33-44 |
| https://doi.org/10.15407/knit2026.03.033 |
| Мова публікації: Українська |
Анотація: The creation of a national space system for reconnaissance, command, and communications requires the development and
implementation of a modern, jamming-resistant system for spacecraft control. The key element of such a system is the radio channel for command and data transmission, which is inherently vulnerable to adversarial access. Currently, space systems employ complex signals with frequency hopping or phase-modulated signals based on linear recurrent sequences. However, advances in the mathematical and soft ware tools used in electronic warfare systems enable adversaries to rapidly reveal the algorithms underlying such signal formation and generate optimal interference from their perspective. Ensuring the required level of protection is achievable by using complex signals with improved correlation, ensemble, and structural properties. This paper presents an analysis of known methods for synthesizing complex signals. Based on this analysis, a method is proposed for synthesizing complex signals with enhanced correlation and ensemble characteristics. A mathematical framework is developed that enables the determination of the necessary and suffi cient conditions for synthesizing an ensemble of complex signals with predefi ned auto- and cross-correlation properties. A comparative analysis of the correlation and ensemble properties of known and synthesized signals is conducted. The results demonstrate that the synthesized signal systems exhibit superior ensemble and correlation properties, and that their use ensures active imitation protection of the space communication and control system at the physical layer while providing increased interference immunity. |
| Ключові слова: anti-spoofi ng, complex signals, interference immunity, space communication and control systems |
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