. Analysis of spectral components for phase method with multiplies frequencies for use in communication lines

Abstract

In article feature usage of the phase method with multiplies frequencies for determining damage in wiring line when applying constraints imposed properties of the object of study – conductor line. Found that lower frequency boundary is due to the stabilization parameter of line, upper boundary – by upper allowed frequency for signal passing. Determined that the total received signal will consist of signal reflections that have different rotational speed of reflection angle. The analysing signal must always be within the allowable frequency. This leads to the fact that the reflection signals get additional value of phase shift as initial angle. It is established that the usage of different methods of digital spectral analysis require to determine the signal components with unknown values of the initial phase shift , as well as with noninteger number of periods that fall within the window of analysis. Figs.: 3. Refs.: 8 titles. Keywords: total signal; analysis window; initial phase angle; display angle; spectral analysis.