Authors

Key words:

spacecraft, onboard systems, complex technical system, potential, availability of a technical system

Annotation:

This article proposes a methodological approach aimed at improving the performance of spacecraft onboard equipment. The systemic property of availability of complex technical systems is examined, as applied to onboard systems of various spacecraft. A generalized system for evaluating spacecraft onboard equipment, taking into account the properties of complex technical systems, is presented. A methodology for assessing the availability of spacecraft onboard systems is presented. The concept of potential is used to describe the availability of a complex technical system. An expression for production potential is presented, and the availability of active assets is taken into account. Indicators influencing the availability of spacecraft onboard systems are examined.

Pages

Code UDC:

Authors

Key words:

data exchange network, UAV-relay, clustering, control traffic, stability, combined attack, electronic warfare, fire engagement, timely delivery probability

Annotation:

This article examines the impact of service traffic on the resilience of a UAV relay network under combined electronic and fire suppression. Relationships are derived for estimating the probability of timely packet delivery as a function of the service traffic intensity requi­red to ensure the functioning of the data exchange network. It is shown that reducing the packet routing algorithm based on network structure clustering (with 5–7 relays per clus­ter) reduces service traffic by more than four times and simultaneously increases the resilie­nce coefficient (in this example, the improvement was over 10 %). The results of this study can be used in routing algorithm design and in justifying the network bandwidth allocated for service channels.

Pages

Code UDC:

Authors

Key words:

dynamic measurement filtering, motion parameter estimation, man-made space object, trajectory measurement data, Kalman filter

Annotation:

A methodological approach has been developed that, taking into account the requirements for the timeliness of solving the problem of estimation the motion parameters of space objects and constraints on their number, makes it possible to substantiate the parameters of trajectory measurement data processing method using information received from observation assets of various deployments. A comparison of dynamic measurement filtering algorithms employing Kalman filters of different modifications has been carried out, and their effectiveness has been assessed based on computer simulation. The purpose of the article is to review and analyze methods for processing trajectory measurement information, as well as to study the effectiveness of the developed methodological approach.

Pages

Code UDC:

Authors

Key words:

digital transformation of document management, digital document, digital documented information, multidimensional array of digital documents, integrity of an array of digital documents

Annotation:

This article analyzes existing data representation models, identifies their advantages and disadvantages, and defines suitable options for structuring electronic document arrays processed by a prospective military electronic document management system. A set of algorithms for ensuring the integrity of multidimensional electronic document arrays is proposed, allowing for increased security of the system under study. This result is achieved by applying cryptographic transformations to components (content and metadata) of electronic documents based on the principle of a non-binary Merkle tree, yielding a root signature for the entire array of processed electronic documents.

Pages

Code UDC:

Authors

Key words:

control systems, special-purpose information systems, distribution of computing and data storage, client-server application information, server load balancing

Annotation:

Modern information systems are complex, multi-tiered, geographically distributed organizational and technical systems. Control centers, which collect, process, store, and transmit information, are key structural elements of their operation. In today’s armed conflicts and information warfare, the load on communication channels and computing resources increases significantly. This necessitates ensuring information systems are capable of dynamic reconfiguration and adaptive redistribution of computing and network resources. Implementing load balancing mechanisms improves system efficiency by reducing latency, increasing data transfer stability, and ensuring adaptation to changing communication channel parameters.

Pages

Code UDC:

Authors

Key words:

information transmission systems (ITS), signal-code constructions, source entro­py, noise immunity, statistical coding, error probability (BER/Pош), gaus­sian channel, data rate

Annotation:

The paper is devoted to the issues of increasing the efficiency of planning control sessions for numerous orbital groupings of small spacecraft in low and ultra-low orbits. To solve the formulated problem, a methodology for evaluating the information technology capabilities of command and measurement control systems is proposed, and various approaches to assessing the sufficiency of information technology capabilities are considered. Based on the developed methodology, software was created that makes it possible to obtain operational estimates of the information technology capabilities of the ground-based control complex for the orbital constellation of small spacecraft, to form an optimal plan for using spacecraft facilities in a short time, as well as to visualize the proposed solutions, which increases their validity and visibility.

Pages

Code UDC:

Authors

Key words:

ground control station, potentially dangerous objects, access matrix, hierarchical system, radio visibility zone, integer linear programming, optimal allocation of resources, control session

Annotation:

The process of planning control sessions for a multi-satellite constellation of small spacecraft (SSC) with limited resources of ground control stations (GCS) requires operational decisions that take into account the dynamically changing ballistic situation and the possibility of emergency situations. A heuristic algorithm based on ballistic filtering of distribution options and dynamic adjustment of control plans for various departments (DV) is proposed. The algorithm allows you to create a basic schedule and rebuild it in case of emergency situations in seconds, minimizing the loss of control sessions and ensuring the required reliability of the management of the orbital group.

Pages

Code UDC:

Authors

Key words:

emergency rescue operations, emergency rescue units, computer search for acceptable options, urgent work, optimization task, parallel execution, rest period, distribution of units, emergency response forces, and technological restrictions

Annotation:

The article proposes an approach to improving the efficiency of distributing emergency response forces at a single site for emergency rescue and urgent work. The approach is based on the enumeration of valid combinations of sequential and parallel execution of stages of the complex of emergency rescue and urgent work with the distribution of emergency response forces. Unlike existing approaches, the proposed approach takes into account the different numbers of units, the different times of their arrival at the site, as well as the need for regulated periods of rest for emergency response forces to comply with safety requirements and prevent a decrease in work productivity. A rational solution is determined by the criterion of the minimum total time for completing a complex of emergency rescue and other urgent works.

Pages

Code UDC:

Authors

Key words:

distributed storage, data integrity, data array, modular arithmetic, two-level cryptographic control

Annotation:

In distributed data storage systems operating in support of information systems of various purposes, violations of stored data integrity caused by destabilizing factors make it impossible for such systems to perform their functions correctly. The paper presents a methodology for operating a data integrity assurance subsystem intended for use by the administrator of a distributed storage system. The methodology is based on the modular representation of data arrays, separate storage of global and local integrity reference values, two-level cryptographic verification, localization of corrupted sub-blocks, and restoration of their integrity. The application of this methodology reduces the time required for data integrity verification and recovery operations, while also providing the ability to confirm the recovery result after restoration.

Pages

Code UDC:

Authors

Key words:

antenna-mast system, unification, antenna parameters, radiation pattern, pneumohydraulic system, unification

Annotation:

This article examines the key aspects that led to the emergence of a wide range of antennas and antenna-mast devices used in the deployment and operation of military radio links and networks. The article discusses the main known ways and imitations of antenna unification, which have led to a wide range of antennas. A new technical solution for standardization is presented in the form of an antenna-mast system with variable geometric and electrical parameters, and its application in modern warfare conditions is shown, allowing for adaptation to these conditions.

Pages

Code UDC:

Authors

Key words:

emergency runway, foam concrete pavement, foam concrete modulus of elasticity, aircraft stopping model on the emergency runway

Annotation:

The article analyzes the emergency landing of an aircraft when it rolls out of the runway. It presents the requirements for the aircraft's braking system during an emergency landing. To ensure a safe landing, the article determines the forces acting on the aircraft during braking during the after-landing run. A numerical calculation of the required emergency runway is performed, taking into account the use of foam concrete coating. It is established that a foam concrete-based energy-absorbing coating is necessary to fully stop the aircraft on the emergency runway. The destruction of the foam concrete leads to a gradual stoppage of the aircraft. The permissible parameters for stopping the aircraft during the emergency run are determined.

Pages

Code UDC:

Authors

Key words:

hand-held hunting firearms, unmanned aerial vehicles, ammunition, destruction, counteraction, observation

Annotation:

The article discusses the issues of countering unmanned aerial vehicles in modern conditions. The problems of countering the use of smoothbore hunting weapons by law enforcement officers are analyzed. The results of a ascertaining experimental study conducted on the basis of an analysis of the indicators of firing shotgun cartridges at targets simulating the flight of multirotor-type unmanned aerial vehicles are presented, on the basis of which a number of conclusions and recommendations aimed at improving counteraction tactics and modernizing cartridges (ammunition) used for firing are formulated.

Pages

Code UDC:

Authors

Key words:

AGS-17, VOG-17, small UAV, destruction probability, mathematical model, fragmentation field, median deviation, head-on motion, flanking motion, lead, coordinate law of destruction, normal distribution

Annotation:

The article examines the possibility of engaging a small unmanned aerial vehicle (UAV) with a VOG-17 round fired from an AGS-17 automatic grenade launcher. It is shown that effective use of the grenade launcher against UAVs requires a targeted modification of the fuze: either reducing the self-destruction time to values comparable to the time of flight at effective engagement range (3–5 seconds), or equipping the grenade with an intelligent burst system (a proximity laser/radar fuze or programmable preset burst time). Assuming such moder­nization, a mathematical model for the probability of UAV destruction by the fragmen­tation field under headon and flanking motion in ideal meteorological conditions is developed.

Pages

Code UDC:

Authors

Key words:

ballistic structure, multifilament flexible-chain polymers based on ultrahigh molecular weight polyethylene, fiber weaving structure, fragmentation resistance

Annotation:

In the article, the authors consider a comprehensive analysis of the effect of the fiber weave structure type in ballistic blocks made of a multifilament flexible-chain polymer based on ultrahigh molecular weight polyethylene on anti-shatter resistance. This article describes three types of structures: woven, non-woven, and knitted, each with unique properties and mechanics for dampening the kinetic energy of a fragment. The paper presents comparative data on the shatter resistance and fracture deformation mechanism of each material, according to GOST 34286–2017. According to the research conducted in this article, it has been established that the type of fiber interweaving is the determining factor between shatter resistance, weight and ergonomics of personal protective equipment. The results in this article make it possible to select the block structure from complex filaments based on ultrahigh molecular weight polyethylene for specific customer requirements.

Pages

Code UDC:

Authors

Key words:

explosion protection device, shock wave, shock wave front overpressure, field testing, enclosed space

Annotation:

This article presents the results of an experimental test of the feasibility of using explosion protection devices based on a gas-liquid dispersant in enclosed spaces. The «Fountain» series explosion protection devices are highly effective in containing explosive charges both outdoors and underwater. It is demonstrated that the «Fountain-1» model 10K explosion protection device reduces the excess pressure in the blast wave front to a safe barotrauma level of 50 kPa at a standard distance of 2,5 m from the detonation site when detonated indoors following the detonation of a 1,0 kg TNT charge. This is comparable to the effectiveness of a similar explosion protection device when detonated outdoors following the detonation of a 1,0 kg TNT charge.

Pages

Code UDC:

Authors

Key words:

combat systems, information resources, combat potential, performance assessment, troop control, informatization, qualimetric measures, tactical units

Annotation:

When assessing the combat capabilities of weapons and troops, it is important to take into account criteria such as the goals and objectives of the assessment, methodological approaches, weapons features, application scenarios, and management organization. The adequacy of the assessment of modern aircraft often depends on models reflecting the impact of information support. The article presents the results of the development of the concept of combat systems, focused on a comprehensive representation of structural and functional characteristics. This reflects the relationship between combat and information characteristics, which is the first step towards formalizing the relationship to improve the accuracy of assessing the combat capabilities of modern and promising combat systems

Pages

Code UDC:

Authors

Key words:

fuel tanker, military actions, means of destruction, protection, armor, fuels and lubricants

Annotation:

The issue of development and application of armored fuel tankers from the moment of appearance of armored military equipment to the present day is considered. Brief descriptions of their design are given, information on the main tactical and technical characteristics, as well as promising directions of increasing the effectiveness of armor protection are presented. The main problems of ASSTG survivability in modern conditions, including threats from small arms, shrapnel, mines and FPV drones, are highlighted. Promising areas of increasing security are presented: the use of combined armor solutions, new materials (ceramics, aramid filaments, ultra-high molecular weight polyethylene, "liquid armor") and camouflage technologies. The need for an integrated approach to the protection of fuel service equipment of the Armed Forces of the Russian Federation is emphasized.

Pages

Code UDC:

Authors

Key words:

protection, exoskeleton, protective material, personal protective equipment (PPE), integration, tactical equipment, combat effectiveness

Annotation:

The text discusses the integration of exoskeletons with personal protective equipment (SIB) as a way to increase the combat effectiveness of a serviceman. The problems of joint use of these systems are described — weight gain, reduced mobility, overheating — and a way is proposed to overcome them by creating unified platforms where armor elements become part of the exoskeleton frame. Special attention is paid to the Russian composite «RUSSYL»: it allows to reduce the weight of SIB by 15–20 % without loss of protective properties. Predictive performance indicators of the integrated system are presented (reducing the load on the musculoskeletal system by 60–80 %, increasing endurance by 2,5–3 times, etc.), development prospects (active exoskeletons, «smart» combat suits) and key technological challenges are outlined.

Pages

Code UDC:

Authors

Key words:

Annotation:

Pages

Code UDC:

Authors

Key words:

Annotation:

Pages

Code UDC:

Authors

Key words:

Annotation:

Pages

Code UDC:

Authors

Key words:

Annotation:

Pages

Code UDC: