A method of surface clutter cancellation for an underground CW radar

An RF signal similar to the undesired signals is synthesized and used to cancel the undesired portion of the received signal from the antenna before it reaches the receiver. With a progressing degree of cancellation, the transmitter power is accordingly increased to expand the dynamic range of the radar. A canceller subsystem is proposed to eliminate undesired signals such as surface reflection and mutual coupling between antennas.<
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