Signal processing correction in spectral analysis using the surrogate autocovariance observation functions obtained by the ATS-algorithm
Keywords:surrogate data, eigenstructure methods, correction, autocovariance function, ATS algorithm, attractor trajectory surrogates algorithm
The problem of processing correction of signals observed against the background of noise has been considered in relation to their spectral analysis by the Root-MUSIC method using the technology of surrogate autocovariance functions (ACF) of observation. The results of simulation modeling are presented dealing with the correction of observation processing by means of the phase randomization of spectral components of observation ACF using the ATS-algorithm for generating the observation surrogate ACF. It has been shown that in generating surrogate data from the observation ACF, ATS-algorithm ensures the highest efficiency at small signal-to-noise ratios.
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