THE USE OF GROUND-PENETRATING RADAR WITH A COOPERATIVE TARGET

A cooperative target (CT) is proposed to enhance the ground-penetratin g radar (GPR) signal-to-clutter ratio (SCR) for buried man-made target s. Applications include tagging high-value buried structures and monit oring microtunneling equipment. Results are presented for a time-domai n CT, a dipole antenna connected to an unterminated delay line. By usi ng several independent time-domain CT's, strategically arrayed about a target, the rotational aspect of the target can also be obtained. Fin ally, harmonic generation is demonstrated as a technique for a frequen cy-domain CT.