Ground penetrating radar

A method of generating a radar signal for a ground penetrating radar including the acts of:

• generating multiple narrower-band signals;
• stepping said multiple narrower-band signals in frequency across an ultra-wide bandwidth;
• generating a tracking signal for each narrower-band signal that is offset in frequency by an intermediate frequency from a center frequency of said narrower-band signals;
• and
• gating said multiple narrower-band signals.

A method of detecting objects with a ground penetrating radar including the steps of:

• generating a stepped frequency radar signal;
• pulsing said stepped frequency radar signal at a gating frequency;
• transmitting the pulsed, stepped frequency radar signal into a region;
• receiving reflected radar signals from said buried object in said region;
• gating said received signals at said gating frequency;
• down-converting said gated received signals to an intermediate frequency by mixing with a tracking signal;
• digitally down converting said intermediate frequency to baseband;
• and
• analysing a resulting radar image to detect said objects.