Abstract: The paper describes a new millimeter-wave real-time three dimensional FMCW imaging radar system used to obtain the image of charge level in the blast furnace. The imaging principle, design idea and characteristics of the radar system are expounded, and some successful results of system testing on a simulation blast furnace are presented. This technique is the first ever applied to the testing of the charge level in blast furnaces at home and abroad.

Key words: millimeter-wave, imaging radar, charge level