LAUSR

The results of the Sreda–MKS space experiment showed that visual data on the vibrations of the ISS structural elements allow one to acquire quantitative characteristics of these vibrations. Such characteristics were found as a result of the analysis of time series obtained by tracing some objects in the ISS structure on video sequences. The numerical data are the vertical and horizontal coordinates of the selected point of the structural element in the frame expressed in pixels. Analysis of the time series allows us to reconstruct the actual dependence of these coordinates on time. In some cases, this dependence is oscillatory in nature and can be represented as the sum of a finite number of harmonics, the amplitudes and frequencies of which are determined by means of spectral analysis.