### INFORMATION TECHNOLOGIES AND SYSTEMS

THE RESTRICTIONS IN THE PROBLEM OF CONSTRUCTION OF OPTIMAL ALGORITHM FOR EVALUATION OF TECHNICAL CONDITION OF A SYSTEM
Valentin I. Senchenkov, Nekrasov Igor N

5

The problem of evaluation of technical state of a system is considered. Specifics of construction of algorithms optimal with respect to a predetermined criterion are analyzed. Formal structures are presented to describe the sequence of controlled parameters checking in the process of the algorithm optimization. An ingenious mathematical formulation of the problem of optimal algorithm synthesis is proposed based on the criterion of maximal average probability of correct decision on the system technical condition.

TECHNOLOGY OF CONSTRUCTION OF ADAPTIVE USER INTERFACE FOR MULTIPURPOSE INFORMATION SYSTEMS AT INDUSTRIAL PLANTS
Dikovitsky Vladimir V, Maxim Shishaev

12

A method is proposed for construction of user interface improving the multipurpose information system efficiency through adaptation of the interface to the context of the problem resolved on the base of users classification model.

### DEVICES AND SYSTEMS OF AUTOMATIC CONTROL

AN AUTOMATIC ALGORITHM OF MULTIPLE SMALL TARGET TRACKING AND DETECTION UNDER PRIOR TARGET UNCERTAINTY
Valery T. Fissenko, Vladimir I. Mojeiko, Tatyana Yu. Fissenko, Leonid D. Vilesov, Dmitriy Fyodorov

17

The problem of tracking of multiple objects under a priory uncertainty of temporal and spatial characteristics and requirement of minimal time for object detection is considered. A strobe method is developed for detection of target-like markers allowing for formation of tracks of many objects. The method may be applied for small distance between the objects at wide range of inter-frame displacements of the objects and high noise level. The method presupposes that each track may be approximated by a linear function over the course of 3—5 frames. Effectiveness of the proposed method is confirmed experimentally with the use of synthesized sequences.

A METHOD OF POSTERIOR ESTIMATION OF CHARACTERISTICS OF FLYING VEHICLE CONTROL SYSTEM
Arseniev Vladimir N., Labetsky Pavel V.

23

The problem of estimation of a flying vehicle control system characteristics with the use of a limited number of field test is considered. A method proposed to solve the problem is based on priority of the experimental data: the weight assigned to the limited field tests data exceeds the weight of practically unlimited aprioristic information. Analytical expressions for posterior estimations of the control system characteristics are derived.

A METHOD OF SYMBOL SYNCHRONIZATION OF TELEMETRIC SYSTEMS IN TIMEFREQUENCY DOMAIN
Loskutov Andrey I, Bjankin Alexander A., Dunikov Artem S., Parshutkin Andrey V

28

A method of symbol synchronization telemetric systems in time-frequency domain based on correlatio-nbased classification of spectral images of binary symbols of group telemetry signal and their boundaries is developed. The method noise immunity estimations are presented.

CONDITION AND STABILITY CRITERION FOR ELASTIC SENSING ELEMENT OF HERMETIC CONTACT
Labkovskaya Rimma Ya., Pirozhnikova Olga I., Tkalich Vera L.

34

The question of linearization of equations of dynamics of elastic sensing elements of hermetic contact is considered. A condition and criterion of the element stability are derived and applied in design of a new hermetic contact.

### COMPUTING TECHNIQUE

CALCULATION OF MERSENNE MATRICES BY PALEY METHOD
Nikolai A. Balonin, Sergeev Mikhail B

38

A modified Paley method for calculation of Mersenne matrix of arbitrary order equal to a prime number is presented. An example of Mersenne matrix calculation is analyzed. Comparison of Mersenne matrices obtained with the use of the modified Sylvester and Paley methods is carried out. Effectiveness of the proposed method is analyzed with respect to the universal procedure of M-matrix retrieval.

### GYROSCOPIC AND NAVIGATION SYSTEMS

MODEL OF MICROMECHANICAL GYROSCOPE DYNAMICS BASED ON RING RESONATOR IN ELASTIC SUSPENSION
Leonid A. Severov, Valery K. Ponomarev, Alexander I. Panferov, Natalia A. Ovchinnikova

42

A model of micromechanical gyroscope dynamics is presented. The model accounts for the effects of mass, elastic, dissipative, and Coriolis forces from the gyroscope suspension.

GYROSCOPIC STABILIZATION OF TWO-WHEELED MOBILE DEVICES
Vetrenko Vladimir I., Romanova Tatyana I., Romanov Alexander S

47

A concept of two-wheeled mobile object stabilization with the use of one-sedate gyroscope on the base of a motorcycle with self-established forward wheel is described. The conditions for stabilization of the device movement are defined. A kinematic scheme of two-wheeled motorcycle is proposed, a working model of the device is constructed

AN ALGORITHM FOR GNSS RECEIVER IN INHOMOGENEOUS ATMOSPHERE
Баранова Л. А.

50

A new algorithm for a receiver of the Global Navigation Satellite Systems (GNSS) is presented. The algorithm is developed in the frames of the ray optics theory; dependence of the speed of light on the distance from the Earth surface is supposed to be known.

### ELECTRONIC AND ELECTROMAGNETIC DEVICES

GENERATION OF THE OPTIMAL BOOLEAN FUNCTIONS IN THE ANALOG-TO-DIGITAL CONVERSION USING COGNATE-REALIZATION
Kushch Sergey A.

55

The cognate-representation of Boolean functions is proposed for the use in analog-to-digital conversion. The approach allows for optimal definition of the obtained function and saving on hardware cost in design and operation of analog-to-digital converters.

### OPTICAL AND OPTO-ELECTRONIC INSTRUMENTS AND SYSTEMS

CORRECTION OF IMAGE FIELD CURVATURE FOR LENS WITH RADIAL INHOMOGENEITY OF THE REFRACTIVE INDEX
Sushkov Aleksander L.

60

Several approaches to design of lens with minimized curvature of the image in the field of second and third aberration orders are discussed. The approaches under consideration are based on the use of inhomogeneous optical material with radial gradient of the refractive index. Application of such lenses is reported to allow for simplicity and decrease in overall dimensions of optical system components.

### HEAT REGIMES AND RELIABILITY OF INSTRUMENTS AND SYSTEMS

EXPERIMENTAL STUDY OF OPERABILITY OF ELECTRONIC EQUIPMENT COMPONENTS ON BOARD OF “MOZHAETS” SERIES SPACECRAFT
Zakharov Ivan V., Georgy V. Kremez, Frolkov Evgeny V.

66

Results of field studies of the effect of space factors on radio and electronic equipment on board of spacecraft Mozhaets-3 and Mozhaets-4 are presented. Characteristics of reliability of the electronic elements operating under exposure to solar and geophysical factors are analyzed.

### INSTRUMENT-MAKING TECHNOLOGY

IMITATION MODELING OF ASSEMBLING OF SCREW PAIRS OF MACHINE-BUILDING COMPONENTS BASED ON COMPUTER TOMOGRAPHY DATA
Kosarevsky Sergey V., Latypov Viktor N.

71

The generalized Hough transform is applied for derivation of geometric primitives (helicoids) from 3D distribution of screw pair density obtained with computer tomographic system. Transformation of the density field into 3D image and subsequent imitation modeling is carried out with the use of marching cubes algorithm method. The initial data for various screws thread are derived with the use of the Carl Zeiss Metrotom 1500 CT scanner.

THE EFFECT OF MANUFACTURING ERRORS IN THE PARALLEL CRANK MECHANISM ELEMENTS ON KINEMATIC ACCURACY OF A CYCLOIDAL REDUCER
Egorov Ivan M., Aleksanin Sergey A, Fedosovsky Mikhail E., Anastasia S. Ptitsyna

76

The effect of manufacturing errors in the parallel crank mechanism elements on kinematic accuracy of a k-h-v type cycloidal reducer is considered. A method for determination of the error of output shaft rotation angle for the cases when one and two satellites are used is presented.

### BRIEF NOTES

PERFORMING TEMPERATURE STUDIES WITH SCANNING CONFOCAL MICROSCOPE
Andrey Zlatov, Viktor Zakharov

81

An attachment for the Zeiss LSM710 laser scanning microscope is designed for investigation of optical characteristics of samples at a temperature from 30°С to 110°С maintained with the accuracy of +/-0,25 °С.

MEASURING SYSTEM FOR ANALYSIS OF OPTICAL CHARACTERISTICS OF COATING
Gorbunova Elena V., Korotaev Valery Viktorovich, Lastovskaya Elena A.

83

An automated device for detailed study and control of various types of coatings deposited on flat surfaces is described.

DEVELOPMENT OF PRIMARY TRANSDUCER FOR COMPARABLE MEASUREMENT OF MECHANICAL PROPERTIES OF MATERIALS
Mihail Marusin, Protasenia Tatiana А.

85

The description developed by the primary transducer for implementing the method of dynamic indentation under the control of mechanical properties of materials.

ABOUT THE POSSIBILITY OF A ONE-STEP METHOD OF LASER MICROSTRUCTURING OF SAPPHIRE SURFACE
Dmitry V. Chesnokov, Kochkarev Denis V., Reichert Valery A., Kuznetsov Мaxim V., Vladimir V. Chesnokov

87

The description of the laser sublimation orderly formation of deep surface micro-relief wafer sapphire.