Longwall Retreat and Creep Measurement Based on UWB Radar Imaging Method

Table 8

The target azimuth and range errors before and after the robot movement in the experiment.

Height (m)		Azimuth (m)			Range (m)
		A	B	C	A	B	C
Before	0.15	0.052	0.015	0.042	0.041	0.071	0.007
	0.30	0.045	0.036	0.045	0.038	0.083	0.044
After	0.15	0.042	0.058	0.038	0.044	0.023	0.082
	0.30	0.103	0.051	0.009	0.063	0.045	0.080