Performance Analysis of Parameter Estimator Based on Closed-Form Newton Method for Ultrawideband Positioning

Table 3

The average positioning error under convergence ( cm).

Method	Coordinate	Test 1	Test 2	Test3	Test 4
Gauss–Newton	X	−13	16	2	16
	Y	−6	9	−7	9
	Z	23	−502	−319	−502
Closed-form Newton	X	−13	8	2	8
	Y	−6	4	−7	4
	Z	23	38.0	−319	−49954