https://in.mathworks.com/help/ident/ref/idpiecewiselinear.html
idPiecewiseLinear - Piecewise-linear nonlinearity estimator object - MATLAB
The idPiecewiseLinear object stores the piecewise-linear nonlinearity estimator for estimating Hammerstein-Wiener models.
linearestimatorobjectmatlab
https://se.mathworks.com/help/ident/ref/idpiecewiselinear.html
idPiecewiseLinear - Piecewise-linear nonlinearity estimator object - MATLAB
The idPiecewiseLinear object stores the piecewise-linear nonlinearity estimator for estimating Hammerstein-Wiener models.
linearestimatorobjectmatlab