INFORMATION TECHNOLOGIES AND SYSTEMS
METHOD FOR REFINEMENT OF ATMOSPHERIC MODEL PARAMETERS IN AREA FORECAST OF CARRIER ROCKET SEPARATING PARTS FALL
Arseniev Vladimir N., Dastanbek A. Bulekbaev
5
The problem of refinement of atmospheric model in a given altitude range based on sounding data is considered. Vertical profiles of atmospheric thermodynamic parameters are represented in the form of canonical expansion with known mathematical expectation, mean square deviation, and coordinate functions in nod altitude values. An approach is proposed for calculation of corrections to atmospheric model parameters at altitude above the upper limit of sounding region.
METEOROLOGICAL DATA DESCRIPTION AND DECODING TECHNOLOGY BASED ON ALGEBRAIC APPROACH
Ivan A. Gotur, Aleksey V. Kostromitinov
11
An algorithm for description and processing of meteorological data is proposed. The algorithm is based on algebraic approach; it allows to accelerate meteorological data processing and to reduce the necessary computational resources.
HADAMARD — MERSENNE MATRICES AS A BASIS OF ORTHOGONAL TRANSFORMATION FOR VIDEO MASKING ENCODING
Anton Vostrikov, Balonin Yury N
15
A procedure of video masking encoding with the use of M-matrices as an orthogonal basis is considered. Two-level orthogonal symmetrical M-matrices are proposed for utilization on the stage of image spectral expansion. The M-matrices applied in the procedure are of order equal to Mersenne sequence for which Hadamard matrices do not exist.
DEVICES AND SYSTEMS OF AUTOMATIC CONTROL
20
An algorithm of control over objects under parametric uncertainty, perturbations, and restriction to input signal amplitude is synthesized. A method is proposed for signal formatting in such a way as to ensure the control function to be bounded in a given range. Limiting requirements on parameters of object under control, reference model, and regulator to ensure the control system efficiency are formulated. Results of modeling for the case of linear object are presented.
SYSTEM OF TURBOCOMPRESSOR PROTECTION AGAINST SURGING
Moris M. Shakirianov
26
The possibility of construction of a turbocompressor protection system based on experimental data on surging is considered. The system allows for simultaneous control over a specified set of parameters of gas pressure and temperature in the air-gas tract.
COMPUTING TECHNIQUE
SYNTHESIS AND OPTIMIZATION OF COMPUTATIONAL ALGORITHMS FOR SIGNAL PROCESSING BASED OF EXTREME CORRELATION METHOD IN HIGH-RESOLUTION ELECTROCARDIOGRAPHY
Zharinov Oleg O, Zharinov Igor Olegovich
29
Approaches to optimization of computational algorithms of electrocardiographic signals processing based on extreme correlation method are discussed. An algorithm allowing for tenfold decrease of computation time at retained signal processing quality indicators is proposed, the algorithm is reported to meet the requirements of high-resolution electrocardiography.
CRISIS OF INDUSTRIAL PROGRAMMING TECHNOLOGY, UNDECLARED CAPABILITIES, AND DON’T CARE
Nemolochnov Oleg F., Leonid Osovetsky
39
Verification of computational processes with graphical-analytical models driven by partially defined Boolean functions is considered. The problem under study consists in application of Boolean control box and cubic coatings to searching of undeclared capabilities and dead code as a result of don`t care. Examples of coatings for Boolean graph are presented, as well as verification of don`t care as a coating conjunction of relations-inequalities.
ELECTRONIC AND ELECTROMAGNETIC DEVICES
APPLICATION OF NEURAL NETWORK TECHNOLOGIES FOR EVALUATION OF GRANULAR SUSBSTANCE FLOW
Vyacheslav S. Afonin, Dmitry E. Krivobokov
47
A method is proposed for estimation of dependence between primary measuring capacitor sensor output signal and density of grain flow based on neural network technologies. Description of the method and results of investigation are presented.
OPTICAL AND OPTO-ELECTRONIC INSTRUMENTS AND SYSTEMS
ALGORITHM FOR ADJUSTMENT OF COMPOUND MIRRORS OF LARGE-APERTURE TELESCOPES
Demin Anatoly V., Liliya M. Mendeleeva
51
Peculiarities of adjustment of compound mirrors of large-aperture telescopes are considered. A mathematical model and an algorithm of compound mirror adjustment with the use of calibration method are proposed.
MODERNIZATION OF ABBE REFRACTOMETER AND THEORETICAL JUSTIFICATION OF INCREASE IN ITS ACCURACY
Kirillovsky Vladimir K., Aleksey M. Golubev
56
Abbe refractometer under consideration is improved with the use of contouring method ensuring a clear dividing line between the light and the dark half-planes in the eyepiece. The Monte-Carlo method is applied to derive a theoretical justification of increase in the refractometer accuracy.
OPTICAL-ELECTRONIC GAZ ANALYZER OF NITROGEN DIOXIDE CONTROL
Alexander S. Antonov, Gennady Ishanin
61
An optical-electronic gas analyzed is developed on the base of optical absorption spectroscopy method for measurement of nitrogen dioxide concentration in motor vehicle emission. Technical characteristics of radiation source and detectors used in the analyzer are outlined; optical scheme of the instrument is presented. Advantages of the new detector over the classical one are described.
INSTRUMENT-MAKING TECHNOLOGY
FORMATION OF SIO2/SI SYSTEM MORPHOLOGY UNDER THE ACTION OF EXCIMER LASER RADIATION
Huynh Cong Tu , Skvortsov Albert Matveevich, Petrov Andrei Anatolievich
65
Formation of micro-and nano-scale periodic structures on the surface of SiO2/Si system with the use of nanosecond laser pulses is investigated. Exposure of experimental samples to ultraviolet ArF laser pulse (193 nm) is shown to produce periodic wave-like structures on the surface. The dependence of the surface topology of SiO2/Si system on the laser pulse energy density and on the number of pulses is studied.
70
Potentially achievable sensitivity of magnetic sensors on the base of granular superconductors is predicted from experimental results and theoretical study of the process of magnetic field penetration in HTSC structure YBa2Cu3O7–x .
