Three-dimensional underground imaging radar system

Details Three-dimensional underground imaging radar system Three-dimensional underground imaging radar system

1996-06-14

1997-09-30

Eldred, J. Woodrow

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

Transmission through media other than air or free space

342 25, G01S 1304

Patent

active

056730500

ABSTRACT:
An ultra-wide band ground penetrating radar (GPR) system providing non-invasive detection and three-dimensional mapping of underground objects and voids. The performance of this radar provides improved underground object detection, location and identification over existing radars through the use of a novel interrupted, frequency modulated, continuous wave (FMCW) signal waveform. A synthetic aperture radar (SAR) technique known as spotlight mode focused (SAR) operation is used to collect data for the underground area of interest, by circumscribing this area with a radar beam provided on an airborne or ground based vehicle. Near-Brewster angle illumination of the ground is used to reduce losses.

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