Longwall Retreat and Creep Measurement Based on UWB Radar Imaging Method

Table 1

Parameters in the first simulation.

Parameters	Values	Parameters	Values
Signal carrier frequency	4.3 GHz	Signal bandwidth	1.7 GHz
Sampling frequency	20 Hz	Radar moving velocity	0.15 m/s
Synthetic aperture length	2 m	Radar height	0.15/0.30 m
Roadway width	2.4 m	Advancing displacement	[0.80, 0.10, 0.00] m
Radar squint angle	30°/13.18°