Subdomain clutter reduction method for imaging near surface target

Penetrating radar for detecting near surface target is a kind of radar which can be used to detect, discern and image the small targets buried in the shallow surface of nonmetallic medium. The main clutter of this radar mechanism is the reflection wave transmitted between radar antennas and the surface of the non-metallic medium. If it cannot be reduced, the image of the small targets will be submerged. This paper presents a clutter reduction method which bases on the idea of subdomain mean cancellation to suppress the reflection wave of non-uniform surface of the medium. Experimental results prove that subdomain mean cancellation method can effectively repress the reflection wave of the medium surface and significantly improve the quality of the image.