INFORMATION TECHNOLOGIES AND SYSTEMS
NEW APPROACH TO DATA SECURING IN INFORMATION SYSTEM
Shcheglov Konstantin A, Shcheglov Andrey Yu
157
A new method of securing data processed in information system is considered. The approach is based on realization of control of access to newly created object (file, clipboard) in order to exclude the object from the access policy due to automatic marking on newly created objects. Practical realization of the method is illustrated by an example of patented, implemented, and approved technical solution. Application of the proposed approach is shown to change all requirements to other security mechanisms designed to solve problems other than access rights control and restriction and therefore generates a new information system data securing technology.
ASSESSING THE OPERATION EFFICIENCY OF INFORMATION SYSTEM UNDER TECHNOGENIC RISK CONDITIONS
Ivan Yu. Paramonov , Vladimir A. Smagin , Kharin Vitaly N.
167
A simple restorable information system is studied; operation efficiency of the system under technogenic risk conditions is estimated.
SIMPLIFIED BACKSTEPPING ALGORITHM FOR CONTROL OF NONLINEAR SYSTEMS
Furtat Igor B., Tupichin Evgeny A.
173
An algorithm based on the modified backstepping method is proposed for robust control of parametrically uncertain nonlinear plants. Simulation results illustrate the performance of the presented scheme.
METHOD FOR ADAPTIVE COMPRESSION OF SATELLITE IMAGES OF EARTH SURFACE
Grigor’ev Andrey N., Dudin Evgeny A.
179
A method of adaptive compression of satellite images is proposed. The method uses a bank of filters of direct / inverse wavelet transform and decisions providing the required quality of the reconstructed images with a high compression ratio.
THEORETICAL MODEL OF CONTROL OVER PRODUCTION SYSTEM ON THE BASE OF THE GENERALIZED MATRIX VALUE CONCEPT
Bagrecov Sergey A., Mishchenko Eduard V.
185
The apparatus of generalized matrix properties is applied to determine the shortest path in the graph. The concept of modified determinant function of matrix number is introduced.
DEVICES AND SYSTEMS OF AUTOMATIC CONTROL
ANALYTICAL METHOD FOR ESTIMATING THE ACCURACY OF ADAPTIVE SYSTEM OF SPACECRAFT AUTONOMOUS NAVIGATION
Ivan V. Fominov, Golyakov Alexey D.
190
A method of estimating the accuracy of spacecraft autonomous navigation system is proposed. The method involves analytical determination of covariance matrices of navigation errors derived from adaptive on-board information-measuring complex data obtained under the effect of outer space disturbing factors.
METHOD OF EMBEDDED DYNAMIC ACTUALIZATION OF FUNCTIONAL MODEL OF SYSTEM ON A CHIP
Sergei V. Bykovskii
197
A new method of formal model generation for system on chip (SoC) real-time functioning is proposed. The model is generated by embedded means of SoC during field tests or end-user operation. The method can be used as a basis of the mechanism of SoC embedded runtime verification. In contrast to existing methods, requirements on instrumental memory size are decreased considerably.
NON-REVERSIBLE DIGITAL ANGLE CONVERTER ON THE BASIS OF THE DUAL-TRACK RECURSIVE CODE SCALE
Ozhiganov Aleхander A.
203
A digital converter of angle counts is proposed. The converter incorporates a scale with two code tracks and two counting elements, and a unit processing data obtained from the information scale.
SCIENTIFIC AND PRACTICAL DEVELOPMENTS
METHOD FOR ESTIMATING OPTICAL FLUX ATTENUATION BY TWO-STAGE OPTICAL ATTENUATOR
Nadezhda K. Maltseva
207
A method is proposed for evaluating optical flux attenuation by each stage of the two-stage photometric attenuator involving a Fresnel-type component and integrating sphere.
METHOD OF CALCULATING OF GAS-LIQUID MIXTURE PARAMETERS DISTRIBUTION IN EXPLOITATION WELL DEPTH
Smirnov Roman I., Buturlimov Oleg V., Kazunin Dmitry V.
214
The known methods of calculating pressure, density, temperature, and viscosity distributions in gas-liquid mixture along exploitation well lifting pipe are examined. A method now used in the training complex for specialists in continental shelf development is proposed for the application.
MICROPHONE ARRAY FOR DIRECTIONAL ACOUSTIC ANTENNA IMPLEMENTATION
Krivosheikin Anatoly V, Perelygin Sergey V.
221
A new method of signal processing in microphone array is proposed. The array consisting of two identical omni-directional microphones is considered; the array receives signals from two broadband acoustic sources located in different angular positions relative to the array. The proposed method provides directional reception of signal from one source and attenuation of the other source signal. Mathematical expressions for microphone array weight coefficients are presented.
THERMOCYCLING SETUP FOR TEMPERATURE RANGE OF 83—473 K
DMITRIEV P I, Semyonov Viktor L., Basovsky Andrey A., Andrey A.Zhukov
226
A thermocycling setup temperature range of 83—473 К is demonstrated. The setup allows for testing of devices and materials for effects of temperature changes in the specified range, the experimental data on impact temperature variations are obtained with the speed up to 10 Кps.
DYNAMIC OF ELECTRICAL TRANSMISSION WIRES AT A DIAGNOSTIC MACHINE MOVEMENT ALONG THE LINE
Eliseev Vladimir V., Bahrami Mohammad R.
229
Traveling of an automatic diagnostic machine along electrical transmission line is considered. Mathematical modeling based on Lagrangian mechanics of rigid and flexible bodies is carried out with the use of computer mathematics software. Saw tooth oscillations of the wires in the vertical plane and transversal movements of the type of a parametric resonance are revealed.
METROLOGICAL STUDY OF ATOMIC EMISSION SPECTROMETERS BASED ON CCD LINES
Alexey A. Martsukov, Mamedov Roman K.
236
Analytical capabilities and metrological characteristics of commercial atomic emission spectrometers using CCD lines as optical detectors are studied. Results of experiments on detection limits and accuracy of measurements of chemical elements concentrations in samples of metals and alloys are presented.
BRIEF NOTES
PRINCIPLES OF EARTH REMOTE SENSING DATA PROCESSING SYSTEM DESIGN ON THE BASE OF SERVICE ORIENTED ARCHITECTURE
Vyacheslav A. Zelentsov, Semyon A. Potryasaev , Boris V. Sokolov , Krylenko Inna N., Pimanov Ilya Yu., Akhtman Yosef
241
Principles of design of universal intelligent information system for Earth remote sensing data processing based on service oriented architecture are analyzed. An example of such a system application for operational flood forecasting is considered.
