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Choice of wavelet for the analysis of time-and-frequency characteristics of a non-stationary signal

Keywords:

A. A. Kostin – Dr.Sci. (Eng.), Professor
V. A. Kostin – Ph.D. (Eng.), Associate Professor


The majority of the signals accepted by radio reception arrangements, has complex time-and-frequency parameters and concern to non-stationary. For the analysis of such signals the method is needed, allowing to receive good permit both on frequency, and on time. The article discusses an assessment of a interchangeable degree of wavelet connection and a signal with a view of increase of efficiency of the wavelet-analysis is. There is a methodology of a choice of wavelet for the analysis of time-and-frequency characteristics of a non-stationary signal. As for the examples of the analysis of the actual signal recorded from an ether efficiency of the offered approach in the analysis of complex non-stationary signals on the basis of direct continuous wavelet -transformation is confirmed.
References:

  1. D'yakonov V.P. Vejvlety'. Ot teorii k praktike. M.: SOLON-R. 2002. 448 s.
  2. Solomenczev N.K. Osnovy' teorii vejvletov. Vejvlety' v MATLAB. M.: DMK Press. 2005. 304 s.
  3. Solonin A.I., Arbuzov S.M. Cifrovaya obrabotka signalov. Modelirovanie v MATLAB: Uchebnoe posobie. SPb.: BXV-Peterburg. 2008. 816 s. 

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