Evolutionary-Based Sparse Regression for the Experimental Identification of Duffing Oscillator

Table 2

Identified models by the ESparse algorithm, numerical Duffing.

	Identified ODE equation	% error
Theoretical reference		-
SNR = 20 dB		0.7
SNR = 19.5 dB		1.9
SNR = 19 dB		3.7
SNR = 18.5 dB		11.2