The return signal is read by the receive antenna.  At this
point some simple analog processing is done and the signal is
digitized at a resolution of 6 GHz, and sent to a PC.

The PC correlates the data into a conventional waveform, does
some processing, then transmits the data over an ethernet
cable to a Pentium workstation (not shown).

The Pentium workstation is used to apply different digital
filters, combine waveforms, and display the results.  This
system can be used to demonstrate detection of small targets
buried in sand, people behind walls, and other targets.







Patriot has used its antenna system to demonstrate detection
of objects as small as a coke can buried in sand, through a
wall. Even small targets disturb the wavefront of the pulse,
producing reflections and modifing the field in measurable
ways.

Patriot will be testing this technology for suitability for
mine detection. We will be acquiring sample casings and
running further tests.

                             -105-