Table 4.

The inversion results of the hybrid method and the DE inversion method for $S3$ and $S4$ in case where the parameters values are slightly outside the specified ranges. For $S3$ and $S4$, the values of ${\epsilon }_1$ and $h_1$ exceed 5% of the specified ranges.

Parameters to Be Detected	Inversion Results for Hybrid Method	Estimation Errors for Hybrid Method	Inversion Results for DE Method	Estimation Errors for DE Method
$[{\epsilon }_1=3.80$ $h_1=2.30$ ${\epsilon }_2=5.20]$	$[{\epsilon }_1^{inv}=3.80$ $h_1^{inv}=2.30$ ${\epsilon }_2^{inv}=5.20]$	$[\Delta {\epsilon }_1=0.00$ $\Delta h_1=0.00$ $\Delta {\epsilon }_2=0.00]$	$[{\epsilon }_1^{inv}=4.00$ $h_1^{inv}=2.18$ ${\epsilon }_2^{inv}=5.63]$	$[\Delta {\epsilon }_1=0.20$ $\Delta h_1=0.12$ $\Delta {\epsilon }_2=0.43]$
$[{\epsilon }_1=4.40$ $h_1=1.90$ ${\epsilon }_2=5.70]$	$[{\epsilon }_1^{inv}=4.40$ $h_1^{inv}=1.90$ ${\epsilon }_2^{inv}=5.70]$	$[\Delta {\epsilon }_1=0.00$ $\Delta h_1=0.00$ $\Delta {\epsilon }_2=0.00]$	$[{\epsilon }_1^{inv}=4.23$ $h_1^{inv}=2.00$ ${\epsilon }_2^{inv}=5.33]$	$[\Delta {\epsilon }_1=0.17$ $\Delta h_1=0.10$ $\Delta {\epsilon }_2=0.37]$