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Publications (24)
This chapter is devoted to possibilities of using unmanned aerial vehicles for high-voltage power lines monitoring. Traditionally, unmanned aerial vehicles in power industry are used to monitor extended objects. And mostly, such monitoring is associated with optical devices (photo and video), which ensures the fulfillment of the requirement of a su...
This chapter is devoted to the application of virtual measures in methods of standardless diagnostics of composites, which allows to simulate various types of defects or damage levels of a product without the use of physical standards, which reduces the time, technical and economic costs associated with the manufacture of reference samples. A metho...
Monitoring of air pollution using unnamed aerial systems (UAS)s is considered. The specifics and content of the information support of the measuring system using UASs are described. The mathematical model of the local atmospheric pollution field in the form of a random field is substantiated. A model of the Wiener field is considered, which describ...
The features of monitoring atmospheric air pollution are considered and a promising direction for the development of an extensive network of monitoring systems is proposed. The results of the analysis of the composition and type of pollutants during the operation of thermal power plants (TPPs) and technologically hazardous enterprises of various in...
The models and measures for measuring random angular quantities (plane angles and phase shifts of cyclic signals) are considered, the basic concepts, terms, definitions and characteristics that are used in the statistical analysis of angular data are given. The definitions and characteristics of the integral probability distribution function (PDF)...
Examples of building models and measures in monitoring and diagnostics of electric power objects are given. It is known that accuracy and reliability of results of diagnostics of technical objects depends on many factors. And, not in the last place, from qualitatively formed training sets which on different parameters and characteristics correspond...
Examples of using the developed models and measures on the circle for the study of cyclic signals in various subject areas are given. The object of study is the phase shift between cyclic signals. The limiting case of cyclic signals are periodic signals, in particular harmonious signals. The solutions to the problems of precision ultrasonic echo-pu...
The general problems of measurements and monitoring are considered, including the issues of displaying the dynamics of a physical quantity in space and time, the stability of unit’s measures of a physical quantity, spatial coordinates and time, data protection and measurement results. The system of postulates on which the theory of measurements is...
The methodological aspects of the analysis of multidimensional signals and fields are highlighted. Mathematical models of measuring signals and fields are systematized, the main spatio-temporal models of quasi-determined signals are considered—continuous and discrete, complex-valued, periodic. Some facts of the theory of orthogonal signals and orth...
This book examines modern methods of creating models and measures in measurements, physical and probabilistic measures, models, spaces and bases of signals and fields, deterministic and probabilistic models and measures of angular quantities. Examples of their use on a circle and in phase measurements are given; models and measures for diagnostics...
The generalized principles of building information-measuring systems (IMS) designed to measure diagnostic signals of different physical nature (vibrational, acoustic, acoustic emission, thermal, electrical, etc.) that arise in operating electric power equipment are considered. The main diagnostic parameters that can be used as diagnostic features t...
The article presents the definition of linear random processes of many of their stochastic characteristics such as moments, correlation functions, characteristic functions. Linear AR and ARMA processes are also considered. Kernels and characteristic functions of the random processes are represented for the processes. Not only stationary linear rand...
In this article the methods and algorithms for simulation of noise and rhythm signals in the diagnostic systems are analyzed. Values of theoretical and experimental moments of studied models and their estimates are obtained. Also the realizations of simulated processes (stationary and periodically correlated), their correlation functions estimates...
This book examines key issues in ensuring the operational reliability of energy facilities. In this regard, it analyzes mathematical models of diagnostic signals that arise during the operation of power equipment; reviews the main findings of research into their characteristics; presents diagnostics methods for selected types of electric power and...
The method of statistical spline functions is considered for problems of predicting the state of complex technical objects using the example of power transmission lines. The choice of parameters of spline fragments for building an adequate mathematical model is analyzed. Based on the experimental data, a short-term spline forecast of heating of ove...
The monograph examines the issues of ensuring the operational reliability of energy facilities through the use of modern information provision. Mathematical models of diagnostic signals that arise during the operation of power equipment are analyzed, main results of their characteristics research of are outlined, methods and means of diagnostics of...
This article looks at quantitative measures of conformity degree of received and transmitted information messages, selected depending on message nature, and defines main approaches to assessment of information systems interference immunity. Author analyzed peculiarities of information receiving depending on signals purposes on stages of signal dete...
Analytical analysis of the spread of the radioactive aerosol-based verification of the mathematical model of its movement and deposition was carried out. Nonlinear mathematical model in curvilinear coordinates and on its base the expression for determining the activity of the emission source, using the results of measurements of wind speed with sim...