Surface Looking Millimeter-wave Radar (SLiMR)

SLiMR (Surface Looking Millimeter-wave Radar) is an advanced millimeter-wave radar that will determine the surface condition of the roadway including the detection of potholes, embedded moisture, and thin ice layers.

SLiMR will inspect the surface of asphalt and concrete pavement, using Commercial Off-The-Shelf (COTS) 24 GHz radar. Similar sensors are currently in use in upscale automobiles as parking guides and collision-avoidance systems; SLiMR will be taking this same idea and directing it downward at the pavement.

• Use of surface condition to infer deeper roadway damage
• Inference of damage using surface dielectric characteristic measurements

• Use of inexpensive COTS mm-wave radar (intended for ranging) as a dielectric characterizer

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