A New SVM-Based Modeling Method of Cabin Path Loss Prediction

Table 2

The error analysis of B-spline surface fitting dB.

Point	True value	Fitted value	Absolute error	Relative error
16ZB	64.6	66.14	1.54	2.38%
16ZD	63.95	65.45	1.5	2.35%
17ZB	65.02	64.58	0.44	0.68%
17ZD	62.81	63.49	0.68	1.08%
18ZB	64.46	62.36	2.1	3.26%
18ZD	64.91	62.47	2.44	3.76%
19ZB	63.33	63.18	0.15	0.24%
19ZD	64.83	63.71	1.12	1.73%
20ZB	64.46	62.75	1.71	2.65%
20ZD	64.09	63.79	0.3	0.47%

The average of the relative error using B-spline surface fitting is 1.86%.