Passive technique for the remote detection of buried objects

Details Passive technique for the remote detection of buried objects Passive technique for the remote detection of buried objects

1998-12-18

2000-10-17

Tarcza, Thomas H.

Communications: directive radio wave systems and devices (e.g.,

Directive

Including a radiometer

342459, G01S 302

Patent

active

061338699

ABSTRACT:
A technique is provided for passively detecting the presence and location of an underground object. A plurality of individual antennas positioned in a linear array are directed to receive fields of view which are mutually parallel in azimuth. The linear array is then focused at a plurality of different angles in azimuth for passively acquiring low level random noise signals in the RF spectrum which are emitted by the underground object and by the intervening media. A radiometric receiver receives the noise signals acquired by each of the antennas as a separate channel, digitizes them and forwards them to a signal processor which performs a number of operations including:

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