A Unified Approach for the Identification of Wiener, Hammerstein, and Wiener–Hammerstein Models by Using WH-EA and Multistep Signals

Table 6

Ranking of estimated linear models for numerical example 3 (Wiener–Hammerstein system). Models 4p, 1z/5p, and 2z/5p have been excluded due to high MDL values.

Structure
2p	4.53E − 2	4.61E − 2	2.30E − 2
1z/2p	3.09E − 2	3.11E − 2	1.57E − 2
3p	2.50E − 3	2.32E − 3	1.27E − 3
1z/3p	1.50E − 3	1.46E − 3	7.68E − 4
2z/3p	1.18E − 3	1.11E − 3	6.07E − 4
1z/4p	1.02E − 3	9.67E − 4	5.23E − 4
2z/4p	1.02E − 3	9.69E − 4	5.25E − 4
3z/4p	1.02E − 3	9.70E − 4	5.26E − 4
5p	4.96E − 2	4.96E − 2	2.55E − 2
3z/5p	1.01E − 3	9.72E − 4	5.28E − 4
4z/5p	1.01E − 3	9.73E − 4	5.30E − 4