Periodograms of superimposed epochs in search for hidden rhythms in experimental data time series
А. В. Дещеревский, A. Ya. Sidorin · Seismic Instruments · 2012
Three methods for calculating the periodograms of superimposed epochs, designed for revealing and investigating periodic components with nonharmonic signal forms are described. Examples of periodograms and Fourier spectra calculated for model time series with known properties are presented. Comparative efficiency of the methods for signals of different forms is discussed. The results of analysis of different experimental signals will be compared in a separate paper that will be a sequel to this work on the optimized choice of methods for analysis of periodic processes.