... [35], independent component analysis (ICA) [1, 36], and principal component analysis (PCA) [37–40] to extract time-frequency features for classification purposes or for reducing the time-frequency ... new data reduction method based on applying matching pursuit decomposition to the time-frequency domain principal components to further reduce the information from the principal components and ... review of time-frequency distributions and various matching pursuit approaches Section introduces the data reduction method proposed in this paper, combining principal component analysis with matching...