The experimental investigations of operator electroencephalograms subjected by electromagnetic noise radiation were carried out. The electroencephalograms were registrated according to international «10/20» system. The numerical parameters as arousal and emotion valence characterized the emotion state of operator were estimated. The definition of these parameters based on spectral power densities of rhythms brain components. These parameters were estimated as developed positive emotions.

Five modifications of the sparse wavelet decomposition algorithm for automatic analysis of the vibration signals waveform were proposed in the article. A comparative analysis of the developed modifications was carried out and the best one was selected according to the criterion of maximizing the rate of signal decomposition and minimizing the approximation error.

The comparative analysis results of various types of discriminators operating under linear scanning of the radiation pattern, as well as the single-pulse direction finding discriminator using the comparison amplitude method are presented.

The results of a study of the application of deep neural convolutional networks to hyperspectral images are presented.

Modified free space method using a vector network analyzer is proposed. The algorithm for determining the dielectric constant is developed. The results of measurements of the amplitude and phase of the reflection coefficient and transmission coefficient for textolite and water are given. Dependence of the dielectric constant of textolite on the frequency in the range 78,33–105,0 GHz is received.

An important aspect of creation of effective recognition systems is the adaptation of radiolocation portraits to the corners of the spatial orientation of the observed object. The modeling complex for estimation of efficiency of the recognition system has been developed. Using mathematical modeling, it is shown that the utilization of adaptive range-finding radiolocation portraits of the object of observation on the basis of the most plausible estimates of its angles of spatial orientation increases of the efficiency of recognition. It is noted that in the conditions of limit of time for making decision about the class of an object, the methods of adaptation must be improved.

The optimal variant and modification of quasi-optimal target bearing estimation algorithms in a survey two-coordinate radar station with a spatial interference compensation subsystem are substantiated. Algorithms are based on intraperiod interference cancellation operations with «whitening» of their results in the time domain by dividing the sum of weighted internal noise by estimating the root-mean-square voltage value and uncompensated residuals of external interference, calculating the expected signal for all possible target positions within the uncertainty domain, constructing and maximizing the likelihood function in the form of the mutual correlation function of isolated implementation and the reference signal. The results of the evaluation of the root-mean-square errors of estimating the angular coordinates of the target are given.

We describe an algorithm building UAV flight path for static targets surveillance. The algorithm provides a sub minimal path and takes into consideration limitation by the maximum turning radius.

The analysis of quality criteria for evaluating images susceptible subjected to distortions such as «blur» and «defocusing» has been carried out. The criterion for assessing the quality of the recovery process, defined as the degree of similarity of the histogram of the gradients of the reconstructed image with the distribution of brightness gradients obtained a priori, was substantiated.

The radar image construction algorithms for propellers of aerial vehicles belonging to the classes «helicopter» and «propeller-driven aircraft» were proposed in [1]. The algorithms are designed to be implemented in a radar sensor with inverse synthesis of antenna aperture. The fundamental condition for the qualitative construction of radar images of the propellers is accurate measurement of their rotation frequency. The measurement method for the repetition frequency of the propeller blades on the base of the convolution of the spectrum of the «secondary» modulation of the signal reflected from propeller was proposed in [2]. This paper discusses the results of experimental studies of the measurement method for repetition frequency of the propeller blades and of the radar images construction algorithms of propellers of typical low-altitude aircraft (helicopters and propeller-driven aircrafts).

The paper presents methods for improving the quality of SEM images of the surface of nanoporous anodic aluminum oxide. The algorithm of the pore size determination using ImageJ software was described. The proposed algorithm is based on the analysis of large data arrays taken from the limited surface areas. The distribution of pore diameter depending on their quantity is presented. The parameters of surface morphology of nanoporous anodic alumina films obtained in the present study agree with literature data.

The method of synthesis of electric filters on elements with distributed parameters is presented. This method for the first time allows designing frequency selective microwave circuits using the features of classical theory. A simple synthesis procedure presents the opportunity for the developer to perform calculations without applying additional transformations, which significantly affects the accuracy of time and production. An example of the synthesis of a fifth-order low-pass filter is given.

The design specific features of the rapid thermal treatment automated unit for silicon wafers with the diameter of 100 mm are described. For preheating the unit uses the halogen lamps with a tungsten spiral of KGT 220-2000-3 in the quantity of 12 pieces, which ensure the wafer heating up to 1200 ºC with the temperature build-up rate of 10–150 ºC/s during 0.1–600 s. The annealing process is envisaged both in vacuum and in the various gaseous media. The production capacity of the unit with consideration of the wafer loading, creation of vacuum in the chamber, inflow into the chamber of the required gas, thermal treatment as per the preset program and the unloading process is ≤ 60 wafers/hour.

The structure of the construction of solid-state oscillating frequency oscillators in individual subranges of the millimeter wavelength range is given. In addition, the proposed principles for implementing the generation of signals in a wide range of frequency bands.