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Airborne Underground Imaging-Radar System Definition

Award Information
Agency: Department of Defense
Branch: Defense Advanced Research Projects Agency
Contract: N/A
Agency Tracking Number: 26420
Amount: $98,400.00
Phase: Phase I
Program: SBIR
Solicitation Topic Code: N/A
Solicitation Number: N/A
Solicitation Year: N/A
Award Year: 1994
Award Start Date (Proposal Award Date): N/A
Award End Date (Contract End Date): N/A
Small Business Information
1500 Wilson Blvd.
Arlington, VA 22209
United States
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 R Jost
 (713) 333-2666
Business Contact
Phone: () -
Research Institution

A Phase I study is proposed to investigate the feasibility of applying a novel ray-tracing technique for electromagnetic propagation through the dense, refractive media of the earth's upper surface. Application of the technique to modern radar and navigation technology should result in the ability to conduct airborne surveillance of subsurface targets with three dimensional spatial resolution of less than a meter. The primary project objective is to develop a high-resolution, airborne ground-penetration radar (GPR) system concept incorporating three-dimensional synthetic aperture radar (SAR) imaging techniques; wideband waveforms; and Global Positioning System (GPS) navigation. The work effort will (1) evaluate the refractive-media ray-tracing technique; (2) produce preliminary refractive- SAR (RSAR) architecture that merges time- and frequency-domain information to fill three-dimensional grid cells; (3) define a wideband, low-frequency (<500 MHz), step-chirped, high dynamic-range (>100 dB) radar receiver for GPR applications; and (4) collect a sample set for chirped-waveform radar data in a refractive medium to validate the RSAR concept. From a military perspective, this radar technique has the potential to produce subterranean images applicable to defense-related surveillance of mine fields, buried assets, bunkers, and tunnels. Anticipated Benefits/Potential Applications - Ariticipat I Defense applications include detection of near-surface mines, detection and identification of buried assets, tunnel and bunker imaging, and civil engineering aspects of military logistics. Commercial applications include mineral prospecting; water percolation surveys; EPA-required waste site monitoring; subsurface pollution investigations; mapping of buried pipelines; surveys of conductivity, thermal, porosity, and moisture content; FEMA-related emergency response for large-scale flood-monitoring.

* Information listed above is at the time of submission. *

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