摘要
In this paper, two-dimensional scaled polyperiodograms are introduced toanalyze two-dimensional mixed processes and harmonics after undergoing quadratic transformation.Frequencies of the mixed processes and frequencies of harmonics after undergoing quadratictransformation can be extracted successfully by the two-dimensional second-order scaledpolyperiodograms and the third-order scaled polyperiodograms, respectively. Theory and algorithm areillustrated by simulation examples.
In this paper, two-dimensional scaled polyperiodograms are introduced toanalyze two-dimensional mixed processes and harmonics after undergoing quadratic transformation.Frequencies of the mixed processes and frequencies of harmonics after undergoing quadratictransformation can be extracted successfully by the two-dimensional second-order scaledpolyperiodograms and the third-order scaled polyperiodograms, respectively. Theory and algorithm areillustrated by simulation examples.
基金
ThisworkwassupportedbytheNationalScienceFoundationofChina (No.60 1 72 0 32 )
