Authors

Keywords:

methodology, support, interoperability, interaction, information exchange, information management system

Abstract:

The article deals with the actual problem of ensuring the interoperability of heterogeneous information management systems (IMS) that form the technological basis of the «Digital Economy of the Russian Federation». During the analysis of the existing approach to ensuring the interaction of IMS, its weak suitability for the organization of a significant (covering organizational, semantic and technical levels of interaction) level of interoperability of modern heterogeneous information systems was established. A methodology for ensuring interoperability is proposed, based on a complex model built as a result of improving the basic model of information systems interoperability. A distinctive feature of the developed methodology is the problem - oriented solutions for each level of interaction.

Pages  3-8

UDK:  65.011.56

Authors

Keywords:

satellite communication system, time - frequency resource, earth station, communication channel, radioresource distribution

Abstract:

The article proposes a method for distributing the time - frequency resource of a satellite communication network. In the conditions of a constant increase in the subscriber base of satellite communication systems and a fundamental limitation of the time - frequency resource of the satellite communication network, an operational distribution of the radio resource is necessary. The solution to the presented problem situation is to improve the methods of planning and distributing the time - frequency resource in order to increase the efficiency of its use. The method proposed by the authors differs from the known ones by dividing satellite communication channels into the main ones - planned in accordance with the communication organization scheme and additional ones - provided in case of an increase in the load intensity through the use of a control channel. The proposed method makes it possible to increase the efficiency of using the limited radio resource of the satellite communication network in situations where an increase in the intensity of transmitted traffic or the number of subscribers is predicted.

Pages  9-17

UDK:  621.396

Authors

Keywords:

steganography, digital water center, identification number, discrete cosine transform, DC coefficient

Abstract:

The article deals with the problem of embedding additional information into a video stream to protect the author’s (not distorted) content. The proposed method is based on the introduction of additional information blocks in the area of the video stream, which remain unchanged during transcoding. This method is based on the principle of observing the effect of changing the luminance component on the container during its copying, extracting and changing key frames. The paper identifies and describes the discrepancies in the values of the extracted and newly formed luminance components during the reverse formation of the RGB color model. An example of embedding additional information into a generated stegocontainer using MPEG-4 and H.264 video codecs using the developed software is given. Possible special filler tags that can be embedded in a video stream are considered.

Pages  18-23

UDK:  004.056.5

Authors

Keywords:

latent - semantic analysis, automatic rubrication, information - analytical systems, intelligent information processing

Abstract:

The article deals with the problem of automatic rubrication of heterogeneous information in secure information and analytical systems (IAS), which allows to reduce the time spent in the search and selection of the required data. A mathematical model of data presentation is proposed, which is based on the modernized method of latent semantic analysis (MLSA) and a dictionary of key phrases with an increasing coefficient. The MLSA is used to identify the semantic dependencies between the terms of documents and to obtain the correspondence coefficient of the compared vectors.It is shown that the use of the proposed modernized method of latent - semantic analysis in conjunction with a dictionary of key phrases with an increasing coefficient makes it possible to increase the efficiency of automatic rubrication of heterogeneous information in the IAS.

Pages  24-31

UDK:  004.912

Authors

Keywords:

search for broadband signals by delay, pseudo - random code manipulating sequences, inter - satellite radio lines

Abstract:

The paper is devoted to the issues of ensuring the functioning of promising multi - altitude multi - satellite communication systems stability by improving the receiving and processing broadband signals used in the organization of information exchange technology. The authors propose an approach to improving the stability of the multi - satellite communication systems functioning of different heights by reducing the time of signal search when entering into synchronism for each inter - satellite radio line. It is possible to achieve this effect due to the use of a code manipulating sequence generated on the basis of two generating components as a pseudorandom sequence. The approach proposed in thepaper, which is reflected in the search model for a derivative of a phase - manipulated broadband signal of intersatellite radio lines of a multi - satellite communication system of different heights, reduces the time of signal search by delay when meeting the requirements for the simplicity of generating a code manipulating sequence and a high equivalent linear complexity of the elements of an ensemble of signals.

Pages  32-40

UDK:  519.816

Authors

Keywords:

satellite communication channel, amplitude - phase shift keying, noise immunity, probability of bit errors, phase noise, frequency offset

Abstract:

On satellite radio links, variations in the phase or frequency of the output signals, described by phase noise, can lead to errors in the demodulator. The article presents a model that makes it possible to study the effect of phase noise and frequency detuning on the quality of functioning of satellite communication channels with amplitude - phase shift keying. A feature of this model is the ability to form the types of modulation used when transmitting signals in the DVB-S2x standard. The boundaries of the reduction of noise immunity when using manipulation with a multiplicity from 16 to 256 at various parameters of frequency detuning and phase noise are determined.

Pages  41-46

UDK:  621.391

Authors

Keywords:

the Peltier element, supply voltage, forced convection, thermal insulation

Abstract:

This article presents the results of numerical simulation of the thermoelectric effect. Based on a parametric study, the values of the optimal supply voltage of the Peltier element were obtained in the absence of forced convection. The blowing velocity of the hot transition area is determined for the complete dissipation of the pumped energy. A dynamic model of case heating with electronic equipment placed inside has been created. Based on the data on the optimal operating temperature of which, isotherm graphs were constructed, where the abscissa and ordinate are represented, the thickness of the thermal insulation and the power of internal heat release, on the basis of which, taking into account the cost of thermal insulation materials and climatic equipment, it is possible to minimize manufacturing costs.

Pages  47-53

UDK:  519.633.2

Authors

Keywords:

special - purpose communication node, destabilizing influence of the enemy, logical - probabilistic model, reconfiguration of connections, stability of functioning

Abstract:

The article develops structural and parametric models of special - purpose communication nodes and their elements subject to the destabilizing influence of the enemy. These models represent the logical conditions for the system to implement its functional purpose. The main idea of the article and the study as a whole is the of developing such variants of the structures of special - purpose communication nodes, in which the indicators of the stability of the functioning of these systems, taking into account changes in the structures themselves, as well as taking into account the reconfiguration of the connections between the elements of the communication node, will correspond to the required values. Communication node models have been developed using pictorial means of functional integrity schemes of the general logical - probabilistic method, on the basis of which logical operability functions and probabilistic functions are constructed. The article reflects the efficiency and sensitivity of the model.

Pages  54-61

UDK:  004.942

Authors

Keywords:

unmanned aerial vehicle, guided aerial bomb, air attack means, optoelectronic system

Abstract:

The article in a complex considers the main methods and modern trends of countering massive attacks by small - sized unmanned aerial vehicles and guided aerial bombs at all stages of their use, from the start to the combat impact on the protected object. The above assessments and approaches can allow, in a first approximation, to assess the effectiveness of existing and projected air defense systems for repelling a new type of modern air threats. General proposals are formulated for repelling simultaneous attacks of small - sized unmanned aerial vehicles from different directions at low altitude for a wide range of protected military and civilian objects in peacetime and wartime.

Pages  62-71

UDK:  623.746.519

Authors

Keywords:

antiaircraft defense, anti - ship cruise missiles, vector field of effective potential (EP), AFW duty schedule, effective affected area (EAA), readiness mode of AFW, readiness for combat (RC)

Abstract:

Currently, the decisive factor in the development of the theory of military art is the fact of the transition to the creation and use of precision - guided long - range munition by the enemy in the sea - anti - ship missiles (AShM), which makes it possible to destroy ships from remote lines without entering the zone of the fighter aircraft (FA) action and reach of antiaircraft missile system (AMS) [1]. The article proposes a problem solution of the control optimization of the AFW readiness mode in the antiaircraft fire covering system (AFCS) of the surface ships formation in the case of the attack threat of the anti - ship cruise missiles. The obtained results will make it possible to substantiate an expedient mode of AFW readiness and also to create the recommendations for setting the AFW duty schedule for antiaircraft defense (AD).

Pages  72-79

UDK:  623.765.4

Authors

Keywords:

nanosatellite, observation of the marine environment, fuzzy logic, Mamdani method

Abstract:

Space - based means of observing the marine situation have the status of global means of monitoring the marine situation and identifying sources of radio emissions. The significant drawbacks of the available space - based means of observing the marine situation are the relatively high costs of creating spacecraft of this class and low operational control. To develop an approach to the creation of an operational control system for a space surveillance vehicle for the marine situation. Results. An approach has been developed to create a control system based on a nanosatellite, which will allow, in conditions of limited time for decision - making and uncertainty of data on initial parameters, to provide operational control of nanosatellites, in which the main control parameters are expressed using an odd logical conclusion - the Mamdani method. According to the test results, it was determined that the use of the Mamdani method allowed to increase the efficiency of management by 2 times, compared with analytical methods, while uncritically reducing the accuracy of measurement results.

Pages  80-88

UDK:  621.37

Authors

Keywords:

aboard military bases, the system for determining the location of radio sources, performance indicators, the accuracy of determining coordinates

Abstract:

The operation of the overseas military bases (OMB) and the information collection and information - analytical processing systems on the OMB is linked with the assessment of their effectiveness. The effectiveness of the determining the location of radio sources system directly affects the effectiveness of the entire system for collecting and information - analytical processing of information of OMB. The quality indicators of the positioning system should be divided into system - wide, structural and functional indicators. For a positioning system, it is appropriate to select as the main performance indicator the accuracy of determining the coordinates of radio sources, estimated according to the criterion of demand, i.e., exceeds a given value and is to be maximized.

Pages  89-94

UDK:  519.81

Authors

Keywords:

weapons and military equipment, full - scale tests, reliability, evaluation model

Abstract:

The article discusses a methodological approach to assessing the reliability of weapons and military equipment with a cyclical nature of functioning based on data obtained as a result of full - scale tests of their prototypes. As a characteristic of reliability, it is proposed to use the number of cycles of no - failure operation. The approach is based on the presentation of the results of full - scale tests in the form of a small sample from the general set of values of the random variable of the number of cycles of non - failure operation of the evaluated samples of advanced weapons and military equipment. The reliability indicator is the probability that the number of cycles will exceed a given value. The construction of the distribution function of this probability is based on the principle of maximum uncertainty. This makes it possible to increase the reliability of the assessment in the context of limited testing of weapons and military equipment.

Pages  95-98

UDK:  623.4.018

Authors

Keywords:

active protection systems, explosive reactive armor, integrated protection of the tank

Abstract:

Rapid development of active protection systems and their wide application in many countries have formed an idea, that this particular type of protection will solve all problems with provision of required protection of the military vehicles and equipment on present and future battlefield and in the coming years drive back or completely replace explosive reactive armor. This is clearly demonstrated by both steep rate of active protection systems market growth and foundation of joint businesses in active protection systems adaptation and their promoting to the military vehicles market. However, protective systems designers themselves recognize that optimal way of military vehicles and equipment protection is in combined application of all types of protection systems including multi - purpose ERA systems that can also provide protection against kinetic energy threats. This approach allows keep the weight of the tank less than 70 tons in future development of anti - tank threats.

Pages  99-103

UDK:  623.4.01.011

Authors

Keywords:

diesel engine, tank power plant, fuel ignition delay period, armored armament, fuel injection advance angle, compression start temperature, fuel activation energy, heat release rate

Abstract:

The article presents a method of calculation and theoretical determination of the value of the fuel ignition delay period in the conditions of the combustion chamber of a tank diesel engine in order to adjust the injection advance angle with deep cooling of the charge air. The difficulty of correctly determining the value of the fuel ignition delay period is due to the fact that when using the S. Arrhenius equation, it is necessary to determine the coefficients included in it for each specific engine that differs in gas - dynamic conditions in the combustion chamber. As a result of the computational and theoretical research carried out by the team of authors, a method for determining the magnitude of the fuel ignition delay period was developed and the coefficients of the equation for the conditions of the combustion chamber of the B-92C2 tank engine were obtained. The accuracy of determining the ignition delay period is important to ensure the effective flow of the working cycle of diesel engines of armored weapons and equipment.

Pages  104-109

UDK:  623.1.7

Authors

Keywords:

automotive equipment, transmission, method, sensor, database

Abstract:

The article presents methods for solving the problem of diagnosing the technical condition of the transmission, the serviceability of which directly affects the reliability of military vehicles. The necessity of creating a method for remote automated diagnostics of the technical condition of the gearbox is considered, which allows continuously monitoring the dynamics of gear wear in real time and automatically issuing a conclusion on the current technical condition of the gearbox. The research of ways to improve the system of maintenance and repair of military automotive equipment, taking into account the terms of its operation. The tasks of creating a method for remote automated diagnostics of the technical condition of the gear box, based on the method of remote assessment of the technical condition of the system by reading data from sensors installed on vehicle units, have been solved. As a result, the presented method can be implemented in the form of a specialized on - board computer equipped with non - volatile memory and placed directly on the car with the interface output to the driver’s cabin. Keywords: military automotive equipment, gearshift box, technical condition of military automotive equipment, technology, method, automated diagnostics complex, GSM module, maintenance and repair, sensor, database.

Pages  110-116

UDK:  629.113

Authors

Keywords:

camouflage coatings, camouflage properties of terrain, camouflage efficiency

Abstract:

The article presents an analysis of the camouflage coatings application directions, the principles of constructing a camouflage pattern, and a method for constructing a model of a terrain background pattern for its use in camouflage coatings for military and civil purposes is proposed. The proposed methodological apparatus for analyzing the color structure of observed objects is based on the mechanisms of the human eye color perception. To assess the effectiveness of new camouflage coatings, it is proposed to use a method for automated assessment of camouflaged objects using the camouflage similarity index with a background image corresponding to the natural reactions of a person to the observed image.

Pages  117-127

UDK:  623.77

Authors

Keywords:

small arms, ammo counter in the store, radio frequency identification, shooter’s equipment

Abstract:

The article discusses the cartridge counter in the automatic and semi - automatic small arms store. The counter determines the number of cartridges in small arms stores, both attached and undocked, while maintaining the overall dimensions of the stores and their high performance characteristics. The specified technical result is achieved through the use of radio frequency identification system technology. Information about the number of cartridges in the magazine and its identification number can be displayed on any external digital display that is switched to the magazine’s cartridge counter via a contactless reader that is directly included in the shooter’s equipment. The developed counter can be used to create an automated system for collecting information in real time about the number of shots fired from small arms and the number of cartridges remaining in stores, both attached and not attached to weapons, of an entire unit of shooters.

Pages  128-135

UDK:  623.4:621.396

Authors

Keywords:

surface hardening, electromechanical processing, microhardness, quenching structures

Abstract:

The article presents the results of a study of the effect of carbon and the initial structure of steel on the microhardness of the surface layers of parts of multi - purpose tracked and wheeled vehicles during their hardening by combined methods of electromechanical processing. It has been established that an increase in the number of passes during EMT contributes to an increase in the depth of the hardened layer and its microhardness, due to the increased electrical resistance of the previously hardened structures obtained and the increase in the high - temperature impact zone with subsequent martensitic transformations. Preliminary heat treatment makes it possible to increase the efficiency of electromechanical processing, to obtain a higher degree of hardening of the surface layer with an increase in productivity. A higher degree of hardening after EMT is observed in steels with a high carbon content, in high - carbon steels a pronounced light layer is formed, which is explained by the fine structure of these steels, a high carbon content, as well as higher electrical resistance and lower thermal conductivity.

Pages  136-142

UDK:  621.787

Authors

Keywords:

polycrystalline zinc selenide, transmission, scattering climatic tests, numerical modeling

Abstract:

Polycrystalline zinc selenide (PO4) is transparent in a wide range of the spectrum. In this article the temperature dependences of transparency, as well as the scattering of IR radiation in the «forward» direction were investigated. Full-scale tests of the material under the influence of sea moisture, atmospheric precipitations and exhaust gases were carried out, surface degradation and transparency reduction were found out. Optical parts in devices are usually used under conditions of simultaneous exposure to large gradients of temperature, pressure and light radiation. Numerical modeling of the products stability under specific operating conditions was carried out and consistent results were obtained. The tasks were solved for the case of the boundary conditions of hard pinching of windows, which corresponds to the real conditions of their embedding in the frames.

Pages  143-152

UDK:  681.7.036:661.847.955.2

Authors

Keywords:

improvised explosive devices, thermal effect, thermal explosion, ammonium nitrate, powdered sugar, aluminum, TNT, additive, catalyst, thermocouple

Abstract:

The influence of a number of organic components, including explosive, and aluminum on the initial stage of the response to the external thermal effect of charges based on ammonium nitrate is considered. The experiments were carried out using a heat bath to determine the flash point, supplemented with a thermocouple to register the dynamics of temperature changes on the surface of the charge - glass contact. The addition of such additives as powdered sugar, TNT, and aluminum powder to ammonium nitrate led to a decrease in temperatures at which the stage of pre - explosive heating begins. and the possibility of reoccurrence of a thermal explosion. Thermal explosions of model charges based on ND are highly degenerate compared to traditional standard blasting substances based on RDX.

Pages  153-159

UDK:  662.221.4

Authors

Keywords:

wave hydraulic chute, model, dam, proran, washout

Abstract:

The results of physical modeling of an accident or terrorist act accompanied by the overflow of water over the crest of the dam from local materials are presented. The simulation was carried out on a wave hydraulic tray. During the experiments, the level of water overflow over the ridge and the time of erosion of the dam model were estimated. The conditions for the implementation of two different modes of erosion of the dam body made of local materials were studied: the plane - parallel mode of erosion of the dam, when the soil is washed away evenly along the entire length of the pressure front, and the spatial mode of erosion of the dam with the formation of a hole. A criterion for changing the erosion modes for the studied scale of the dam model is obtained. The regime of uniform erosion is probably implemented at the lower dams in the cascade of hydroelectric facilities in the event of an accident or a terrorist act at the higher dam.

Pages  160-166

UDK:  627.8.034

Authors

Keywords:

lighting, types of lighting, the effects of lighting on the operator, hardware lighting, spectral composition of lighting

Abstract:

The article presents a historical analysis of the evolution of electric lighting systems and the results of studies on the effects of different parts of the spectrum of light radiation on human health. A variant of the spectrum of the artificial light source, which has a minimal negative impact on human health, is substantiated. In the process of developing modern lighting systems with the possibility of regulating the main characteristics, which in the future will be equipped with objects of defense technology, as a prospect of using the combination of emerging new properties of innovative products, the author proposed the concept of using adjustable lighting systems as a tool for assessing and studying the psychophysiological state of the operator.

Pages  167-174

UDK:  628.987