[e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it. ]A.Moiseev

Evaluation of Error and Time Complexity When Solution of Task of Dislocation of Surveillance Facilities of Shore-based Surveillance System

The present paper is devoted to an analysis of task of dislocation of surveillance facilities of shore-based surveillance system. In the article the authors have evaluated the time complexity of task and proved its NP-fullness. It offers an algorithm of approximate solution of the task, allowing getting polynominal solution for a given error level. For analysis of the approximate algorithms the article offers a procedure of error evaluation.

Surveillance facilities, efficiency, assignment task, time complexity, algorithm error.

Anatoly Alexanderovich Kupriyanov, [e-mail: mars@mv.ru ]A. Kupriyanov,

Anatoly Stepanovich Melnichenko[e-mail: mars@mv.ru ] A. Melnichenko

Intellectual Object-oriented Analysis, Design and Development of Computer-aided Systems

The article is devoted to issues of mining and representation of knowledge in processes of object-oriented analysis, design and development of computer-aided systems. The subject of investigation is knowledge base of knowledge domain in objectoriented form. The article deals with features of knowledge-base use during decision-making by concerned persons during the design of a computer-aided system. It also stresses issue of the use of ontology of knowledge domain, defines an approach to the creation of computer-aided system of knowledge domain taking into account state-of-the-art trends in information science and technologies.

Knowledge, knowledge control, knowledge representation, knowledge base, virtual enterprise, object-oriented analysis, ontology, knowledge domain, service-oriented technologies, multiagent systems, ontological engineering.

Yuriy Petrovich Egorov, [e-mail: mars@mv.ru ]Y.Egorov,

Anatolii Ivanovich Pyatakov, [e-mail: mars@mv.ru ] A. Pyatakov

Evaluation of Minimum Achievable Probability of Reception of Bogus Message in Computer-aided Troop-control Systems

The present article is devoted to investigation of message-processing techniques directed towards considerable decrease of risk of bogus-message reception in computer-aided troop-control systems. The article gives defined criteria for generation of a bogus message at the input of an information receiver on basis of probabilistic graph of state of data-communication system, and a comparative evaluation of probability of reception of a bogus message both in unidirectional data-communication systems with dependent and independent errors and in feedback systems. The article also shows that an important decrease of probability of reception of a bogus message in channels of poor quality is caused by decrease of transfer rate. It proposes a technique allowing evaluating a minimum achievable probability of the reception of a bogus message in the systems with given parameters of reception integrity.

Computer-aided troop-control systems, data-communication systems, reception integrity, bogus message.

Aleksandr Kupriianovich Ivanov, [e-mail: mars@mv.ru ]A. Ivanov

Distribution Laws for Parameters of Probable Danger From Single Objects

The article deals with simulation capabilities for search for laws of distribution of parameters of probable danger from single objects having random coordinates. It gives program flowcharts for simulation and study results.

Simulation, probable danger, distribution laws.

Vladimir Viktorovich Kalnikov, [e-mail: mars@mv.ru ]V. Kalnikov,

Yury Ivanovich Beresnev, [e-mail: mars@mv.ru ] Y. Beresnev

Simulation of Cycle-phasing Systems With Split Seek

The article presents a developed simulation model of modified cycle-phasing system with split seek, which allows simulating taking into account a high value of probability and packing of errors, effect of digital-signal slip structure of syncro-groups and ther location in cycle. Taking these facts into account contributed to the increase of adequacy of the simulation model with respect to real systems in case of strong non-stationary noise impact. It also gives and analyses the results of the simulation.

Simulation, cycle-phasing system, algorithm of simulation-model operation.

Aleksey Valeryevich Mattis, [e-mail: mars@mv.ru ]A. Mattis

Mathematical Modeling of Algorithms for Evaluation of Movement Parameters of a Sea-going Mobile Complex

The article gives a comparative study of algorithms of joint and separate evaluation of parameters and control of movement of a sea-going mobile complex when it goes as per a given straight trajectory. It also gives the results of the computational modeling using computers.

Modeling, optimal control, automatic movement-control system, joint control of movement, vessel, underwater vehicle.

Igor Olegovich Petrishchev, [e-mail: mars@mv.ru ]I. Petrishchev,

Aleksei Arkadevich Smagin, [e-mail: mars@mv.ru ] A. Smagin

Construction of Threat Models and Calculi of Approximation for Efficiency of Integrated Safety System When Analysis of Oil-product Store Vulnerability

The article deals with an approach to generation of threat models, ways of screening of threats and scenarios of their implementation as well as calculation indices of efficiency of integrated safety system for oil-product stores. It also shows their possible use ways when creation of computer-aided system for oil-base protection.

Threat model, threat-implementation scenario, integrated safety system, vulnerability analysis, parameter of safety-system efficiency.

Sergey Nikolaevich Nazarov, [e-mail: mars@mv.ru]S. Nazarov,

Anna Aleksandrovna Shagarova, [e-mail: mars@mv.ru] A. Shagarova

Techniques of Diversed Reception in Systems of Mobile Communication and Broadband Access

The article deals with techniques of diversed reception, which are widely used in mobile networks of digital radiocommunication and systems of broadband access, and evaluates noise-immunity when single and diversed (double) reception. It also considers an orthogonal frequency-division multiplexing (OFDM) as one of techniques of diversed reception in networks of broadband access on basis of the standards IEEE 802.11a, IEEE 802.11n.

Diversed reception, optimum composition, auto-selection, signal-noise ratio, additive white noise, inter-symbol interference, spatial diversity flows, mutiple input, mutiple output.

Nikolaj Grigorevich Parkhomenko, [e-mail: mars@mv.ru ]N. Parkhomenko,

Pavel Gennadevich Semashko, [e-mail: mars@mv.ru ] P. Semashko

Computational Complexity of Algorithms of Correlation Processing of Signals in Radar With Digital Television Illumination

The article is devoted to study of computational complexity of correlation processing of digital television signal reflected by a target at unknown values of delay and Doppler frequency shift. Several alternative multichannel correlators are considered, their computational complexities, detection and resolution characteristics are analyzed and compared.

Semiactive radiolocation, digital television broadcasting, correlator, computational complexity, rapid algorithm, detection and resolution characteristics.

Petr Ivanovich Sosnin, [e-mail: mars@mv.ru ]P. Sosnin

Aleksej Borisovich Shamshev, [e-mail: mars@mv.ru ] A. Shamshev

System of Means for Control of Semantics of Design Tasks and Design Solutions

The article presents a system of means ensuring the control of semantics used and materialized in design tasks thanks to operational comparison with reality whish underlines a project of computer-aided system. The control is performed in a version whish is called predicate and ontological control of design-task statement and design-solutions definition. The potential of the technique of predicate and ontological control contributes to detection of semantic errors, control of design process as well as development of project ontology and reference natural and professional language which should be used by developers of computer-aided systems. The technique of predicate and ontological control is implemented by means of software (C#, .Net 3.5, .Net Remouting) in the form of a set of facilities embedded in tool environment of modeling WIQA [1] within a system of extensions (plug-in) which serves solution of logical and linguistic tasks in design of computer-aided systems.

Computer-aided design, control of semantics, design tasks, design solutions, system engineering.

Iulia Aleksandrovna Radionova, [e-mail: mars@mv.ru]Y. Radionova

System of Distribution of Rights of Access to Data of Technical- Document Archive on Basis of Use of Expert Document- Categorization

The present article deals with a system for distribution of rights of access to information in technical-document archive on basis of categorization of documents, structure and functions of corporate staff. The article is prepared using data from the e-document archive and e-filing of paper documents at the Technical-Document Department of FRPC OJSC RPA Mars.

Archive, technical documents, distribution of rights of access, electronic filing, categorization.

Ivan Vladimirovich Gorbachev, [e-mail: mars@mv.ru ]I. Gorbachev,

Aleksandr Fedorovich Pokhilko [e-mail: mars@mv.ru ] A. Pokhilko

Information Structure for Representation of Design Procedures in the Functionally Adapted Form

The article deals with the structure of a functionally adapted CAD system and principles of its operation, and compares process of creation of such systems and standard programming ways.

Integrated environment, design activity, design decisions, automatization, cad.

Boris Vladimirovich Kruglov, [e-mail: mars@mv.ru ]B. Kruglov

Software Implementation of Simulation Model of Sequential Document-development in Cad System for Computer-aided Control System

The article describes a software implementation of simulation model which allows optimization of document development as per different criteria. It also cites different statements of tasks and calculation results.

Design of computer-aided control system, electronic document management, scheduling theory, simulation model.

Kirill Valerevich Svyatov [e-mail: mars@mv.ru ]K. Svyatov,

Petr Ivanovich Sosnin [e-mail: mars@mv.ru ] P. Sosnin

Pseudocode Programming of Interface Prototypes in Design of Computer-aided Systems

The article offers and describes a system of tools for pseudocode programming of interface prototypes in design of computeraided systems. The specific characters and positives of the system determines the following: representation of typical interface solutions as precedents whose base is open for access from any workstation per sample of expert systems; possibility of generation of operational assemblies from standard interface solutions thanks to pseudo-programming bindings and conversion into a source code in C# language for subsequent dynamic compilation and checks of created interface prototypes in order to detect their compliance to conceptions and norms. The system of tools can be accessed from any workstation of corporate network as a special-purpose subsystem embedded into the tool WIQA.Net. The last one contributes to collaborative conceptual design of computer-aided systems.

Pseudocode programming, interface prototype, dynamic compilation.