Метод одновременного многочастотного тестирования ионосферных КВ-радиоканалов при дистанционном управлении обработкой и анализом данных
Authors: Иванов Д.В. , Иванов В.А. , Елсуков А.А. , Конкин Н.А. 
Published: February 2025

Рассмотрен подход к созданию интеллектуальной системы диагностики ионосферы, КВ-радиоканала и машинного обучения системы КВ-связи. Развиты методики и алгоритмы работы системы удалённого управления зондированием ионосферы и одновременным тестированием множества частотных широкополосных КВ-радиоканалов. Представлен созданный протокол сетевого взаимодействия и архитектура программных средств удалённого управления системой диагностики при изменении области решаемых задач. Основной областью применения результатов является когнитивная КВ-связь, поскольку она способствует обеспечению более равномерного использования парциальных каналов связи, повышению её помехоустойчивости, увеличению производительности модемов и снижению излучаемой мощности.

Introduction. Currently, the focus has significantly moved in spreading the scope of noise-like composite wideband signals. Their feature is the simultaneous formation of radio pulses on a grid of subcarriers. Such signals belong to the class of frequency division multiplexing (FDM) and use intra-pulse phase modulation of partials (PSK), which carry a bit of information. The data is coded by chips, which results in a direct spectrum spreading and improves the noise resistance of the radio system. Since partials with different carriers occupy radio channels in the frequency domain, the problem of their close spacing by orthogonal multiplexing also applies to the analysis of overlapping radio channels. A requirement of the application of the technology of client-server remote control of the system of test data diagnosis and analysis is topical. The widespread use of mobile devices opens up new perspectives for solving topical problems of HF communications. An important trend in this process is the use of mobile applications in experimental research, which is almost not developed. The aim of the research is to develop a method for simultaneous multi-carrier testing of ionospheric HF radio channels over NVIS communication links with remote data processing and analysis. Methods.The solution of posed tasks and obtaining the main research and practical results are based on the methods of mathematical analysis, computational mathematics, the theory of radio wave propagation in the ionosphere. The main theoretical outcomes were verified by numerical and full-scale experiments. Findings. A method for simultaneous multi-carrier sounding of the ionosphere and testing of multiple HF radio channels with remote data processing and analysis was developed. The task is related to the approach of creating an intelligent system for diagnosing a HF radio channel and machine learning of a HF communication system. There were developed: methods and algorithms for remote control of the sounding system for different area of tasks; network interaction protocol, software architecture for remote control of the system of diagnosing ionosphere and radio channels. The significance for science is manifested in the developed approach of the use of client-server remote control technology for the system and data processing. The practical significance is defined by the scope of the method in state-of-the-art cognitive HF communication systems for solving the currently topical problems of ensuring an equal use of partial channels, increasing noise resistance, modem performance and reducing radiated power.