FIG 1.0 MICROWAVE SEISMIC SENSOR CARRIED BY RECCE PLATFORM (C.KOPP 10/95)

RECCE PLATFORM

TERRAIN

DOPPLER SENSING MICROWAVE BEAM

ARRAY OF "VIRTUAL" SEISMIC MICROPHONES

FOOTPRINT OF HOSTILE BUNKER

PENETRATOR IMPACT POSITION MEASUREMENT BY INTERROGATION OF GPS SENSORS

RETARDED PENETRATORS WITH GPS POSITION SENSORS

PENETRATOR IMPACT

SEISMIC SHOCKWAVE PROPAGATING FROM PENETRATOR IMPACT POINT

DISPLACEMENT DOPPLER SHIFTS IN A MANNER ANALOGOUS

TO SEISMIC MICROPHONES, THEREBY ACHIEVING THE

EFFECT OF A LARGE MULTIELEMENT SEISMOPHONE ARRAY.

TOMOGRAPHIC (SIGNAL) PROCESSING OF DISTURBANCES

PRODUCED BY PENETRATOR IMPACTS YIELDS A MAP OF

SUBSURFACE DENSITY WHICH INDICATES THE LOCATION

OF CAVITIES SUCH AS TUNNELS AND BUNKERS

THE MICROWAVE BEAM SCANS TERRAIN FOR VERTICAL