Does anyone know how the Hammerstein-Wiener model represents the piecewise nonlinear functions?

Does anyone know how the Hammerstein-Wiener model represents the piecewise nonlinear functions? What do the axis represent?

Answer 1

[Nitin Khola]

Refer to the following documentation link. It covers some of the concepts that might be of help to you: http://www.mathworks.com/help/ident/ug/identifying-hammerstein-wiener-models.html#bq_5ckz