Abstracts of number Journal of instrument engineering

INFORMATION TECHNOLOGIES AND SYSTEMS

SIMULATION OF UNMANNED UNDERWATER VEHICLE SEPARATION FROM SURFACE CARRIER Anton Krasilnikov, Roman V. Krasilnikov

A mathematical model is developed to describe transversal launch of unmanned underwater vehicle from surface carrier. Results of simulation are presented. Recommendations on general design of the launcher are formulated.

PECULIARITIES OF MODELLING OF RANDOMLY INHOMOGENEOUS IONOSPHERE IN THE PROBLEM OF RADIOWAVE PROPAGATION IN THE NEAR-EARTH SPACE Alexander V. Denisov , Maxim A. Belyansky

Canonical Pugachev decomposition is used for modelling of randomly inhomogeneous component of onedimensional electron concentration profile in the ionosphere. For the case of normal and stationary random field of electron concentration, autocorrelation functions are chosen for specific regions of equatorial ionosphere and characteristics are obtained for random decomposition coefficients.

DEVICES AND SYSTEMS OF AUTOMATIC CONTROL

COORDINATES CORRECTION METHOD FOR AIMING MARK OF SPACE ROCKET Arseniev Vladimir N., Dastanbek A. Bulekbaev, Silantev Sergey B.

The problem of aiming mark choice to ensure the rocket separated part fall in a given Earth surface area is considered. Analytical solution is presented which allows for determination of aiming mark with minimal prestarting correction of flight program.

DETERMINATION OF HARDWARE REDUNDANCY LIMITS OF INFORMATION CONTROL SYSTEMS Aleksey V. Averianov, Anatoly M. Baranovsky, Konstantin A. Esaulov

Typical structure of information control system (ICS) based on a microprocessor is considered. A gain in reliability of multi-channel ICS functioning is analyzed.

OPTIMIZATION OF CONTROL OVER TECHNOLOGICAL PROCESSES IN DISTRIBUTED SYSTEMS Oleg I. Lisov, Kyaw Zaw Ye, Pyae Thein Naing

Organization of effective control over distributed systems, in particular power complex, with the account for dynamics processes of the production, distribution, accumulation and consuming of energy resources, is considered. A solution of the problem is presented; it is based on the theory of linear programming, analytic identification method, and multi-graph models.

AUTOMATIC MEASURING SYSTEM FOR CONTROL OVER GEOMETRICAL PARAMETERS OF LOCOMOTIVE WHEEL PAIRS Alexander P. Buinosov, Konstantin A. Statsenko, Alexander M. Kislitsyn

Principles of functioning of an automatic measuring system developed for control over geometrical parameters of locomotive wheel pairs are considered. Description of design and hardware realization of the devices integrated into the system is provided.

COMPUTING TECHNIQUE

METHODS AND MEANS FOR REAL-TIME ESTIMATION OF FREQUENCY OFFSET IN SATELLITE COMMUNICATION Oleg V. Nepomnyashchy, Хабаров Роман Сергеевич , Igor N. Ryzhenko, Alexey A. Komarov

The problem of increase in satellite modem communication channel bandwidth is considered. Methods for estimation of frequency error are analyzed in terms of both theory and practice of digital signal processing. An approach is proposed to calculation of complex number module based on the Fast Fourier Transform technique. The approach is shown to reduce significantly the computation time of signal processing. Test results obtained with system on a chip used in the satellite communication complex under development are presented.

GYROSCOPIC AND NAVIGATION SYSTEMS

PROGRAM RECEIVING AND PROCESSING OF SIGNALS IN NAVIGATION SYSTEM “COMPASSˮ Авдеев В. А., Vladimir S. Bakholdin, Denis A. Gavrilov , Igor S. Gerasimenko, Добриков В. А., Vadim F. Ivanov, Alexey V. Kozlov, Igor V. Sahno, Andrey B. Simonov, Eugeny A. Tkachev

The software complex developed for signal receiving and processing in satellite navigation system “Compassˮ (China) is presented. Technology of program receiving of navigation signals allowing for correlation processing is described, results of experiments are demonstrated.

FINE MECHANICS DEVICES

POLARIZER FOR EFFECTIVE MAGNETIZATION OF FLOWING LIQUID Davydov Vadim Valerievich, Valentine I. Dudkin, Karseev Anton Yurievich

The problem of local reduction of longitudinal relaxation time of pure water in polarizer is considered. Simultaneous effect of stationary electric and magnet fields on longitudinal relaxation time of pure water at various temperatures is studied experimentally.

ELECTRONIC AND ELECTROMAGNETIC DEVICES

BRIDGE CIRCUITS WITH PULSE SUPPLY AND BALANCING WITH EARTHED TUNABLE ELEMENTS Gennady I. Peredelskiy

The problem of parameters estimation for complex two-port networks using bridge circuits with pulse supply and balancing with earthed controllable elements. Conditions of measuring circuit equilibrium are formulated, analytical relations are proposed for estimation of two-port network parameters on the base of experimentally obtained data.

OPTICAL AND OPTO-ELECTRONIC INSTRUMENTS AND SYSTEMS

MODULAR DESIGN OF OPTICAL SYSTEMS Lev Andreev, Vasilisa Ezhova, Galina S. Degtyareva

Principle of modular design, types of optical modules and their corrective properties are considered. Original optical schemes are described; results of aberration calculation for various optical systems, including high-aperture objectives, condensers, microscope objectives and oculars are presented.

ALGORITHM OF SMALL-SIZED OBJECTS DETECTION WITH THERMOVISION OBSERVING SYSTEM BASED ON LOCALIZATION OF SPATIAL ANOMALIES Sergey M. Borzov, Oleg I. Potaturkin

An algorithm of thermal image processing for heated object detection is developed. The algorithm allowing for hardware realization is based on localization of anomalies in distributions of irradiance and its gradient in infrared image. Results of the algorithm efficiency tests carried out with data obtained in actual situation are presented.

DEVELOPMENT OF MODERN QUANTITATIVE SHADOW METHOD Zatsepina Marina E., Kirillovsky Vladimir K.

Original quantitative method of shadow image digitization is developed. The method is based on transformation of Foucault knife-edge shadow pattern into a geometrical model of shadow image of linear grating. The proposed approach is reported to provide a map of analyzed wave front deformations and image quality characteristics of the optical system.

CAMERA-SPECTROMETER FOR RESEARCH IN MINERALOGICAL COMPOSITION OF SOIL Alexander N. Lipatov, Alexey P. Ekonomov, Vladislav S. Makarov, Gennady V. Zakharkin, Dmitry L. Bogachev, Dmitry M. Rumyantsev, Sergey A. Antonenko

An optoelectronic instrument is developed for determination of mineralogical composition of various soils, including the lunar soil (regolith). A combined method of single-detector spectral and luminescent analysis employed in the instrument is described.

SCALE STUDY OF PROJECTION IMAGE OF POLARIZATION ELLIPSE Trofimov Vladimir A., Nagibin Yuri T., Prokopenko Victor T., Vasily T. Urazgaliev

The problem of light beam vector characteristics measurement with optical heterodyne method is considered. Scale of projection image of polarization ellipse is studied. Some precautions against the observed perturbations on measuring accuracy are suggested.

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