Gundogdu U., Akan A.

18th European Signal Processing Conference (EUSIPCO), Aalborg, Denmark, 23 - 27 August 2010, pp.944-948 identifier identifier

  • Publication Type: Conference Paper / Full Text
  • Volume:
  • City: Aalborg
  • Country: Denmark
  • Page Numbers: pp.944-948
  • Istanbul University Affiliated: Yes


Bi-frequency Coherence is a normalized spectrum function based on Loeve Spectrum. In this work, we investigated the use of Bi-frequency Coherence function for correlation of two non-stationary processes, particularly for EEG signals. We define a procedure to achieve Bi-frequency Coherence starting from Loeve Spectrum. Then we present a numerical estimation of this approach. We compare our method with traditional coherence and TF-coherence functions, by means of some examples to show its advantages. It is shown that for some non-stationary processes, the proposed Bi-frequency Coherence function may extract underlying coupling better than other approaches.