INFORMATION TECHNOLOGIES AND SYSTEMS
SOLUTION OF THE PROBLEM OF NONLINEAR PARAMETRICAL IDENTIFICATION OF
STOCHASTIC OBJECTS BASED ON THE MINIMUM CRITERION OF THE ESTIMATION ERROR PROBABILITY
Sergey V. Sokolov, Pavel A. Kucherenko
5
The nonlinear stochastic parametrical identification problem is considered. The method of the decision of identification parameter problem of the discrete observer with use of estimation error probability minimum criterion is offered. For an illustration of efficiency of the offered approach the numerical example is considered.
12
The problem of adaptive generation of quantization matrixes for lossy compression schemes, using spectral transformations is considered. The way of adaptive scalar quantization of spectral coefficients on the basis of weight criterion is offered, ways of calculation of this criterion are considered.
SPEECH COMMANDS AUTOMATIC RECOGNITION SYSTEM
Konstantin K. Gladyshev, Eugene A. Shulgin
17
The article gives a description of the automatic recognition of speech commands. The system consists of several modules: a digitized signal; selection of primary features of the speech signal based on linear spectral roots, search for the standard basis of dynamic programming semantic correction of the recognition sequence of characters linguistically Dictionary. The work can be used in the field of speech technologies.
TRANSFORMATION OF SINGLY-CONNECTED BAYESIAN BELIEF NETWORKS INTO ALGEBRAIC BAYESIAN NETWORKS
Tulupyev Aleksander L
21
The paper presents the key steps of the algorithm which can transform uncertain knowledge patterns bases represented as singly-connected Bayesian belief networks (i.e. structured as a poly-tree) into the bases represented as algebraic Bayesian networks. The major part of this transformation successively performs calculation of join probability tensors based on already-known conditional probability tensors that are stored in the nodes of Bayesian belief networks. The transformation process is completed when join probability tensors are re-calculated into the set of probability estimates over elements of conjuncts ideals.
DYNAMIC SYSTEMS WITH VARIABLE STRUCTURE AND DIMENSION
Aleksander N. Kirillov
23
The approach to mathematical modeling of variable structure and dimension systems is proposed. The model is described by the systems of ordinary differential equations, the number and the form of which depends on behavior of special variables. The continuous and discontinuous variation of structure is considered. The solid body system stabilization problem is adduced as the example of proposed method use.
IMITATING MODELING AT RESEARCH OF TIME CHARACTERISTICS OF DISCRETE SYSTEMS
Eugeny A. Barbashov, Demin Anatoly V., Кулагин В. С., Aleksander B. Nachkebija
29
Basic phase of design simulation models are at issue of this paper, method of building simulation package is based on table-driven approach. Mathematic base as piecewise linear aggregates of organization simulation package is introduced.
DEVICES AND SYSTEMS OF AUTOMATIC CONTROL
OPTIMAL CONTROL OF WIND-DRIVEN POWERPLANT BY OSCILLATING MODE
Sergey A. Kabanov, Еlena S. Petukhova
32
The circuit of wind-driven powerplant with oscillating operating mode and mathematical model of rotative airfoils dynamic were under consideration in this article. To satisfy minimum of Krasovsky criterion, the algorithm of optimal control with predictive model was designed. The parameters of Krasovsky criterion were changed.
COMPUTING TECHNIQUE
TECHNOLOGY OF TRAINING DIALOGUES CONSTRUCTION IN COMPUTER TUTORIAL TRAINING SYSTEMS
Andrey D.Tazetdinov
38
Using of finite automats with memory for construction of multistage training dialogues in systems of tutorial type is discussed. It allows to simplify essentially program algorithms, simulate training dialogue in a natural language, not imposing obvious restrictions on terminology and phraseology of the answer trained and to realize in training system flexible individualized training. The conclusion to the trainee of corresponding retorts or helps, in each of states of the finite automat, depending on the current value of the visiting counter of this states, promotes essential increase of intellectuality of dialogue.
INTEGRATION OF PRODUCT DATA MANAGEMENT SYSTEMS AND COMPUTER-AIDED DESIGN SYSTEMS: FROM PARTIAL SOLUTION TO GLOBAL STRATEGY
Голицына Т. Д.
42
The article is devoted to modern questions of PDM and CAD systems integration in mechanical engineering. The arcticle observes the unified approach and describes the architecture of software environment, which demonstrates implementation of this approach.
OPTICAL AND OPTO-ELECTRONIC INSTRUMENTS AND SYSTEMS
DOPPLER SIGNALS SPECTRUM ANALYZER
Vladimir L. Kozlov
46
Questions of construction of Doppler signals of spectral analysis system, providing the minimal time of the analysis and high sensitivity are considered. At processing signals with the small attitude signal/noise is applied the block of restriction of the false operations, allowing essentially to lower probability of a false alarm at preservation of probability of correct detection.
INFLUENCE OF TRANSPARENT MATERIAL ON OPTOELECTRIC SIGNAL IN NANOGRAPHITE FILMS
Gennady M. Mikheev, Ruslan G. Zonov, Образцов А. Н., Vasily M. Styapshin
51
Results of research of influence of a transparent covering nanographite film on amplitude of optoelectric signal arising in a film at its irradiation by laser pulses are considered. It is shown, that at drawing a covering dependence of amplitude of signal on a corner of falling of the laser beam on the film surface that can be used for modernization of the gauge of spatial position of the object made from nanographite film.
PHOTO REGISTERING DEVICES FOR REPRODUCTION OF SPACE-METEOROLOGICAL SYSTEMS OF 3rd GENERATION
Vsevolod D. Smirnov, Егельский И. Д., Aleksander Е. Bendugovsky
56
The structure and features of photo registering complex intended for service of the meteorological equipment of 3rd generation is considered. The theoretical analysis of conditions of achievement of limiting sanction and power efficiency possible sizes of photo registering devices is carried out.
CALCULATION AND RESEARCH OF DOUBLE-MIRROR COMPOSITION OF OPTICAL SISTEMS
Nguyen Quang Hiep, Tatiana I. Yakushenkova
60
The principle of finding of all possible variants of construction of double-mirror focusing compositions is offered, the generalized method and results of calculation of their design parameters are presented and the graphic way of simultaneous representation of results of calculation of many variants and their characteristics is offered.
ABERRATIONAL PROPERTIES OF REFLECTING SURFACE OF THE SECOND ORDER
Lev Andreev, Комарова Ю. А.
66
Correctional opportunities in Zeidel area of reflecting surfaces of the second order are considered: parabolas, hyperboles and ellipse. On the basis of expressions for factors of aberrations of the third order the theorem of aberrational properties of these surfaces is formulated.
INSTRUMENT-MAKING TECHNOLOGY
ТЕХНОЛОГИЧЕСКИЕ ОСОБЕННОСТИ ВЫБОРА МАТЕРИАЛОВ И МЕТОДОВ НАПЫЛЕНИЯ УЗЛОВ ГИРОПРИБОРОВ
Skvortsov Albert Matveevich, Pham Quang Tung
69
It is shown, that the silicon nanoclusters within layers SiO2 can have the various form and structure. In cases when silicon nanoclusters are formed on silicon substrates by methods nanolithography of surfaces with the subsequent thermal oxidation or a laser irradiation of the oxidized silicon, nanoclusters usually have crystal structure. At use of other methods of formation silicon nanoclusters for reception of diamondlike structures of these clusters, the additional processing is usually required, in particular, high-temperature anneal.
TECHNOLOGICAL FEATURES OF CHOICE MATERIALS AND SPUTTERING METHODS FOR GYRO-DEVICES UNITS
Belyaev Sergey N.
73
The article considers the main principles of choice materials and sputtering methods of functional coatings as applies to gyro-devices units. These principles follow from technical requirements to product, its geometrical and functional features and physic-mechanical and thermo-physical properties of coating material.
