Use of smoothed pseudo Wigner distribution in classifying hormonal time series

The discrete smoothed pseudo Wigner distribution is used to process the cortisol time series of both pituitary and ectopic origins for possible visual discrimination in the time-frequency domain. This technique considers the smoothed pseudo Wigner distribution as an image representation. It compares the results of the smoothed pseudo-Wigner distribution after two different filtering processes: one uses a simple averaging filter, and the other uses a preprocessing filter. If their ratio is greater than a selected threshold and the original smoothed pseudo Wigner distribution is positive, then the latter is considered as an autocomponent. Otherwise, it is considered as a cross component and is set to zero