Time-varying bispectral analysis of non-stationary signals


Akan A., Artan R.

7th International Symposium on Signal Processing and Its Applications, Paris, France, 1 - 04 July 2003, pp.569-572 identifier identifier

  • Publication Type: Conference Paper / Full Text
  • Volume:
  • Doi Number: 10.1109/isspa.2003.1224767
  • City: Paris
  • Country: France
  • Page Numbers: pp.569-572

Abstract

In this paper, we combine the Higher Order Statistics (HOS) and evolutionary spectral analysis approaches for non-stationary signals. HOS are useful for the analysis of non-Gaussian, non-linear and non-stationary properties of processes. Time-frequency analysis is used to reveal the time-varying features of a signal. We present a method for the calculation of a Time-Dependent higher order spectrum Evolutionary Bispectrum - based on the multi-window Gabor expansion.