Figure 1
![Figure 1](http://media.springernature.com/full/springer-static/image/art%3A10.1155%2F2010%2F390910/MediaObjects/13634_2010_Article_2772_Fig1_HTML.jpg)
Illustration of examples of locally stationary neighborhoods (a) in the coordinates of two time instants and (b) in the coordinates of the center time location and the time index difference. Locally stationary areas in the coordinate of and
Locally stationary areas in the coordinate of
and