Efficient large-scale underground utility mapping in New York City using a multichannel ground-penetrating imaging radar system

Ralf Birken; Douglas E. Miller; Maclyn Burns; Paul Albats; Robert Casadonte; Ross Deming; Tony Derubeis; Thorkild B. Hansen; Michael Oristaglio

doi:10.1117/12.462307

12 April 2002 Efficient large-scale underground utility mapping in New York City using a multichannel ground-penetrating imaging radar system

Ralf Birken, Douglas E. Miller, Maclyn Burns, Paul Albats, Robert Casadonte, Ross Deming, Tony Derubeis, Thorkild B. Hansen, Michael Oristaglio

Author Affiliations +

Proceedings Volume 4758, Ninth International Conference on Ground Penetrating Radar; (2002) https://doi.org/10.1117/12.462307
Event: Ninth International Conference on Ground Penetrating Radar (GPR2002), 2002, Santa Barbara, CA, United States

Abstract

Ground-penetrating imaging radar ("GPiR") combines standard GPR with accurate positioning and advanced signal processing to create three-dimensional (3D) images of the shallow subsurface. These images can reveal soil conditions and buried infrastructure typically down to depths of about 2-3m with high resolution. A commercial GPiR called the CART Imaging System, which was designed for mapping urban infrastructure, has been developed. The CART system uses a radar array consisting of 17 antennas (9 transmitters and 8 receivers) that cover a 2m swath on the ground and can collect data while moving at speeds up to about 1 km/h. A laser theodolite tracks the position of the array during operation. The system collects enough data in a single pass to form a 3D image beneath its track; side-by-side passes are stitched together to create a seamless image of the subsurface. GPiR was first tested on a large scale in a project that mapped an area of approximately 12,000m2 in the south Bronx in four nights. Positions of surface features were also surveyed with the theodolite to provide a local reference grid. Final images were visualized with large-scale maps and electronic movies that scroll through the 3D data volume and show the enormous complexity of the subsurface in large cities.

Citation Download Citation

Ralf Birken, Douglas E. Miller, Maclyn Burns, Paul Albats, Robert Casadonte, Ross Deming, Tony Derubeis, Thorkild B. Hansen, and Michael Oristaglio "Efficient large-scale underground utility mapping in New York City using a multichannel ground-penetrating imaging radar system", Proc. SPIE 4758, Ninth International Conference on Ground Penetrating Radar, (12 April 2002); https://doi.org/10.1117/12.462307

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