Extraction of parameters during signal radio profile processing in radiosensor diagnostics.

Modern methods of technical diagnostics, such as thermophysical diagnostics, vibrometry, boundary scanning, vector circuit analysis, have serious drawbacks. They are expressed in high inertia, distraction of processor time, or require galvanic contact with the object of study, which is often unacceptable. These shortcomings can be eliminated by passive radio-sensor technical diagnostics (PRTD), which uses its own radiation (signal radio profiles) to assess the technical condition of a radio-electronic device. In modern scientific literature, the issues of extracting the parameters of technical diagnostics of radio-electronic devices that it provides are practically not covered. The aim of the work is to study the extraction of the parameters of the signal radio profile and compare them with the parameters of radio electronic devices, the assessment of which can be provided by PRTD. Numerical modeling methods, methods of correlation analysis of the results were used to obtain signal radio profiles. In order to find the parameters of the signal radio profile, a mathematical method for solving differential equations was used. The paper presents an equation for the signal radio profile emitted by the electronic unit of the device, as well as an expression for its free components. The possibility of using a modified windowed Fourier transform to find the number of elementary components of a complex radio profile is shown, with an assessment of the correctness of the transformation at the initial stages of the analysis. A method for assessing the correctness of restoring the original signal radio profile is highlighted. A table of correspondence between the parameters of the radio-electronic device and the parameters of the signal radio profile is presented. The extraction of parameters opens up new possibilities in the field of studying the technical condition of radio electronic devices. [ABSTRACT FROM AUTHOR]