Table 2.

Standard deviation of range error (all in meters).

TX 1s	Algorithm	Channel 37	Channel 38	Channel 39
TX1	Classic	2	1.2	4.6
	MLP	1	0.7	2.3
	RBF	1.3	1	2.5
	Classic-Non Emp 2.	3	2	5
	MLP-Non Emp.	1	0.8	2.3
	RBF-Non Emp.	1.4	1	2.3
TX2	Classic	4.2	6.5	4.4
	MLP	1.7	2	1.7
	RBF	2	2	2
	Classic-Non Emp.	4.3	7	6.8
	MLP-Non Emp.	2.3	2	2.5
	RBF-Non Emp.	2.1	2	2.2
TX3	Classic	4.6	2.5	8.8
	MLP	0.8	0.8	0.9
	RBF	1.8	2	2.4
	Classic-Non Emp.	5.5	4	9
	MLP-Non Emp.	2.3	1.2	2.5
	RBF-Non Emp.	1.9	2	2.3
TX4	Classic	4.6	2.5	8.8
	MLP	0.8	0.9	0.9
	RBF	1.8	2	2.1
	Classic-Non Emp.	8	3.2	11
	MLP-Non Emp.	0.9	1.1	1.3
	RBF-Non Emp.	2.1	2.1	2.1

¹ Transmitter (TX). ² Empirical (Emp).