Information technology based on noise-like signals

The purpose of this article is a brief overview of the results of research on the use of noise-like signals in broadband radio systems conducted under the leadership of Yuri Vasilyevich Gulyaev. Methods. The conducted research was based on the previous experience of the V.A. Kotelnikov IRE RAS research team related to the development of analog noise-like devices (shumotrons) based on the concept of dynamic chaos. The continuation of these studies was associated with the development of digital chaos based on integer generating algorithms that could be easily reproduced on any digital technology. Results. Promising directions of using information technologies using dynamic chaos for the transmission, processing, storage and protection of information are considered. Broadband information transmission systems using complex signals with a large base, built on the basis of systems with chaotic dynamics, are presented. Finite-dimensional mathematical algorithms for calculating chaotic signals by reconstructing nonlinear dynamics in dissipative systems with a delay are proposed. Conclusion. It is shown that a digital information transmission system with spectrum expansion and dynamic change of chaotic codes has high noise immunity, secrecy, electromagnetic compatibility and ensures reliable and confidential transmission of messages in a complex electromagnetic environment. Schemes for masking, protecting, processing, and transmitting information are implemented based on original chaotic algorithms. An experimental study of the noise radar layout in laboratory conditions demonstrated a sufficiently high accuracy of radar range measurements over the entire measurement range with dual spectral signal processing, as well as a high range resolution of 15 cm (with an effective bandwidth of 800- 900 MHz).