Longwall Retreat and Creep Measurement Based on UWB Radar Imaging Method

Table 4

Parameters in the second simulation.

Parameters	Values	Parameters	Values
Signal carrier frequency	4.3 GHz	Signal bandwidth	1.7 GHz
Sampling frequency	20 Hz	Radar moving velocity	0.2 m/s
Synthetic aperture length	1.8 m	Radar height	0.05/0.25 m
Roadway width	2.0 m	Advancing displacement	[0.70, −0.10, 0.00] m
Radar squint angle	40°/27.24°