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A multibeam interferometer with oscillating mirrors is theoretically investigated. Transfer functions are presented and analyzed for two extreme cases, namely, for an interferometer with stationary mirrors and an interferometer operating in the mode of -superslow- mirror oscillations.

Peculiarities of forming a temperature track in circular laser writing in chromium films on glass substrates are studied. The temperature field is calculated for a wide range of writing diameters (20-150 mm). Dynamics of heating a chromium film on a quartz substrate upon switching on the beam in the course of movement for cases with temperature-dependent and independent thermophysical coefficients of the film and substrate is considered. Calculation results show the difference in the form (asymmetry) of the temperature track for an on/off writing beam. A method for correcting the procedure of choosing the writing beam power for producing small (about several microns) grooves is proposed. Calculated and experimental data are compared. The difference between images of synthetic microstructures in transmitted and reflected light is discussed.

The width and spectral dependence of the complex refractive index of upper layers in thin-film MBE-grown GaAs structures can be measured by means of spectral ellipsometry, that is, a nondestructive noncontact optical method, using an oscillatory model of dielectric function.

Methods for evaluating readiness of mining technologies to robotization and expediency of mining robotization are proposed.

An algorithm for searching and subpixel estimating coordinates of point targets by images received from photodetector arrays is considered. Results of numerical modeling and an estimate of efficiency of the proposed algorithmic solutions are presented.

The most interesting results and recommendations on the bispectral analysis of discrete- time stationary random processes are collected in this paper. Exact definitions of both the bispectral density and the related mathematical objects are presented.

A two-dimensional adaptive filter that forms a contour signal of image objects by accumulation of the initial signal in the direction of orientation of the contour difference and by its double differentiation in the orthogonal direction is implemented. The adaptation parameters of the filter are local estimates obtained by procedures of for- mation of a covariance matrix, its diagonalization, and estimation of eigenvectors of the characteristic equation of the matrix determinant. The signal accumulation operation compensates for the loss in the signal-to-noise ratio of the filter contour signal, which is explained by the necessity of performing the double differentiation operation. This is a favorable advantage of the filter over the classical Marr-Hildrett filter.

A technique is proposed for synthesis and analysis of hybrid models for effective usage of a priori information on the kind of equation of separating surface between classes and information of the training sample.

Dependence of the structural robustness of the embedded diagnostic circulant graph on the vertex numbering of the host graph of computing system interconnections is studied. The host graph is a graph of direct product of cyclic subgroups. The embedding is based on partitioning a group into cosets via a cyclic subgroup of the chosen group element degrees. It is found that for the proposed methods of ordered numbering on a group graph, which are known as coordinate methods, by the evenness of cyclic subgroup orders and the evenness of the coset number, one can judge a comparative value of the used index of structural diagnostic graph robustness. Analysis of coordinate numberings is carried out to establish preference of certain numberings over others with respect to the structural robustness index.

Fussy estimation procedures based on the formal logical reasoning approach and Mamdani