The article describes the transition concept from addressable fiber Bragg structures and microwave-photonics sensor systems based on them to multicast fiber Bragg structures. The difference between multicast structures and address structures is that in the fiber Bragg structure formes three or more super narrow-band frequency components, spaced from each other by the microwave frequency. The central frequencies shift of multicast Bragg structures is determined by the result of processing the signal of optical frequencies beats at the photodetector, which parameters judge the applied physical fields. We see the solved problem of uniquely determining the central (Bragg) frequency shift of the multicast fiber Bragg structure, with a unique set of address frequencies.

This article presents the definition, the statement and the solution of problem optimization for the trajectory between pairs of points in multidimensional timbral space. We see the solution which is implimented on Pareto optimality multiplicative and additive criteria, based on the example of given point set and the space of dimension 3. For given point set and the space of dimension 3, we present the corresponding, The obtained results define the method of timbral spaces for the non-speech audial systems reporting, also known as the sonification systems.

This aticle is devoted to the creation features and functioning of a multisatellite communication system (MSCS) with mobile subscribers based on the orbital grouping of multi-altitude satellite-repeaters (SR) used on different heights. In the course of the investigatons the article outlines the following key scientific and technical solutions for the development of a different height multi-satellite communication system (DHMSCS): creation concept, ballistic construction, analysis of information load, organization of information exchange, network model. It is shown that this approach to the construction of the proposed communication system does not only concede to such foreign MSCSas Iridium, but also surpasses them according to some indicators.

The author develop the conceptual control system model to ensure the sustainable projected promising packet radio network HF-band operating. It is proposed to implement the control functions at the Element Management System level on the basis of automated radio centers, and to implement the Network Management System level management functions on the basis of a dedicated server. Such a management approach allows you to build a hierarchical centralized radio network management system architecture. We can observe a simulation modeling for the developed algorithms of the selected radio network control functions. The paper presents the simulation results, namely probabilistic-temporal characteristics of the processes reliability, routing and functioning under attacks.

This article represents us the method for power losses minimizing in transistors of a radio frequency key generator (power amplifying) based on the control method application with overlapping pulses. We see fully formed requirements for the optimal excitation mode, providing maximum efficiency and maximum operating frequency, taking into account the finite times of switching on and off the generator GaN transistors. The article shows the obtained analytical equations for calculating power in a load, loss of efficiency, as well as equations for estimating the maximum operating frequency of the generator depending on the permissible level of losses. The article presents graphics of curves that determine the maximum operating frequency of an RF generator for permissible switching losses on various types of GaN transistors.

There is a promising direction in the antenna field design of a stationary transmitting radio center short-wavelength range is the use of active phased array antennas with spatial power addition and a controlled directional pattern. The article considers the algorithm for calculating the V shaped antenna as a basic element of antenna array, apart from that it considers calculation of the four-element antenna array based on the V shaped antenna. This paper presents the track tests results to estimate the power increment depending on the operating elements in the antenna array, as well as horizontal controllability results.

The author propose us a mathematical models of signals, interference, and noise that are simultaneously emitted and received by a two-band radar complex. The author considers the model of the complex functioning, which carries out simultaneous signals evaluation and detection received from slowly and rapidly fluctuating target on the background of interference and noise. This article investigates the features of information processing in the considered model which arise when the spectra of two ranges overlap.

We propose a universal method of video stegosystem detection, which was recently suggested by the authers. They describe the detecting algorithm and its efficiency is presented in terms of the missing and false detection probabilities. The article considers the possibility of the detection resistance of such stegosystems by the means of reducing the speed of embedding secret information in them.

This article shows us the study results of a method for identifying the processor architecture of an executable code based on machine learning. In the first part of the article we see an overview of existing solutions for machine code identifying and we see how the author makes a new method assumption. The author considers features of the machine code instructions and build its frequency-byte model. There is a processor architecture identification scheme, which is based on this model. Apart from that we see the frequency signatures which are provided for the following Top 10 processor architectures: amd64, arm64, armel, armhf, i386, mips, mips64el, mipsel, ppc64el, s390x.

Geochronological tracking is an effective information technology for digital cartographic spatial data sets processing. It is widely known in retrospective patterns research about geographic relocation of figures, or any other units for a given time interval. Software component of geochronological tracking is becoming one the most popular GIS-integrated applications. The article presents the basic provisions for the algorithmization of the geochronological tracking procedure for statistical testing of retrospective studies hypotheses. We can observe the results of solving this optimization problem in a general form and in a number of the most typical variants. The obtained results of solving the optimization problem are interpreted in terms of the retrospective studies subject area. There are shown the ways of further practical application of the optimized algorithm in the tasks of modern logistics, data mining and formalized knowledge.

The article describe us that the identification of insiders and insider activities in the organization is an actual direction of ensuring information security, since the high level of software development and hardware information protection brings the malicious actions of legitimate users to the fore. This article discusses the methodology which allows to identify anomalies in the organization’s employees interaction with information assets and its applicability is assessed in the context of work to detect malicious activities of insiders.

This paper investigates the process of multi-stream data transmission from several unmanned aerial vehicles (UAV) to a ground station. We can observe a mathematical model of the data transfer process at the application level of the OSI model (from flying nodes to a ground station). The Poisson - Pareto packet process is used to describe the multi-stream data traffic. The results of simulation are obtained using the network simulator NS-3. It is considered a system for emulating the process of multi-stream data transmission from UAV to a ground station. Acording to the results of studies for multi-stream data transmission it is clear that the increase of the UAV source nodes which simultaneously transmit data to a ground station needs higher requirements for Goodput.

The article describes the main demand reasons for soft architecture of service-oriented systems. There are shown common analytical studies results of service-oriented systems. We consider a promising approach how to manage their quality. We see the detailed ideas about the purpose of the model-analytical intelligence of service-oriented systems. The paper shows us the extended formal procedures for constructing object-oriented models of service-oriented systems with the intelligent quality control. The author proposes a method for generating model-analytical intelligence of service-oriented systems with a controlled quality of their functioning.