Small-Range High-Precision Positioning Based on Two-Point Coordination for Robot

Table 2

RMSE of different algorithms in different sampling frequencies and interpolation points.

CF (MHz)	RMSE (m)
	RMSE square	RMSE circle	RMSE asterisk	RMSE cross
10	3.8295	0.0125	3.6916	0.0118
20	3.8724	0.0148	3.6835	0.0113
30	3.8928	0.0107	3.6557	0.0102
40	3.8995	0.0176	3.6531	0.0112
50	3.8983	0.0184	3.6459	0.0104
60	3.8196	0.0148	3.6184	0.0121
70	3.8812	0.0119	3.6357	0.0089
80	3.8886	0.0138	3.6198	0.0109
90	3.8700	0.0174	3.6525	0.0124
100	3.8979	0.0157	3.6554	0.0093