Oleksandr Trotsko

Military Institute of Telecommunications and Informatization named after the Kruty Heroes

The problem that is solved in the research is to increase the efficiency of decision making in management tasks while ensuring the given reliability, regardless of the hierarchical nature of the object. The object of the research is decision making support system. The subject of the research is the decision making process in management tasks using...

The object of research is multi-antenna systems with spectrally efficient special purpose signals. The problematic issue, the solution of which is devoted to this research, is the improvement of immunity to interference of multi-antenna systems with spectrally efficient special purpose signals. A technique for improving the immunity of multi-antenn...

Nowadays, the satellite segment in telecommunications occupies an important place and provides positioning of the global coverage system. However, the development of satellite technologies, compared to terrestrial wireless technologies, is slow. For example, the new DVB-S2 (Digital Video Broadcasting via Satellite) satellite standard contains a sma...

We developed a method of training artificial neural networks for intelligent decision support systems. A distinctive feature of the proposed method consists in training not only the synaptic weights of an artificial neural network, but also the type and parameters of the membership function. In case of impossibility to ensure a given quality of fun...

The object of research is decision-making support systems. Local wars and armed conflicts of recent decades are characterized by high dynamics of operations (combat operations) and a significant amount of diverse information circulating in information systems. These features determine the search for new approaches to increase the efficiency of deci...

The object of research is intelligent decision making support systems. Processing different types of intelligence from a variety of information sources requires significant computational operations with strict time constraints. It leads to the search for new scientific approaches to the processing of various types of geospatial information to incre...

The object of research is the military radio communication system. Effective operation of routing protocols is possible only if there is reliable information about the network topology for each of the network nodes. Construction of special purpose radio networks with the possibility of self-organization is possible only in the presence of adequate...

The object of research is the military radio communication system. One of the problems in improving the effectiveness of military radio communication systems is the correct description of the movement process in them. Efficient routing protocols are only possible if reliable information on network topology for network nodes is available. Thus, with...

Decision making support systems (DSS) are actively used in all spheres of human life. The system of the electronic environment analysis is not an exception. However, there are a number of problems in the analysis of the electronic environment, for example: the signals are analyzed in a complex electronic environment against the background of intent...

According to the Military doctrine ofUkraine, one of the central tasks is to reform the Armed Forces of Ukraine in order to achieve interoperability and technical compatibility with the armed forces of NATO member states, as well as adherence to the standards of work, division of functions and core tasks adopted in the EU and NATO member states. To...

The paper considers of etstimation’s method of doppler frequency shift with use of the sum of harmonious signals with additional decimation of ADC. В докладе предложен метод оценивания допплеровских сдвигов частоты поднесущих OFDM сигналов после дополнительного стробирования отсчетов аналого-цифрового преобразователя (АЦП), сформированных по сумме...

Method for advancing compensation of Doppler effect at transfer of OFDM signals is in fact that in mode of entering communication by received pilot-signal one performs evaluation of Doppler frequency shift, for each of sub-carriers one calculates frequency correction that with opposite sign is used at formation of frequency counts of digital-analog...

In this paper the method of doppler frequency shift’s measurement with using of multifrequences signals is considered.

In this paper a Doppler аrequency shift’s сompensation are considered, which arises in communication lines with UAV, at use of Not Orthogonal Frequency Discrete Modulation (N-OFDM) signals