A new approach for near-field wideband synthetic aperture beamforming.

A coarray-based synthetic aperture beamformer using stepped-frequency signal synthesis and post-data acquisition processing is presented for wideband imaging of near-field scenes. The proposed beamformer formulation and implementation finds key applications in through-the-wall microwave imaging and landmine detection problems. While coarray techniques offer significant reduction in array elements for a given angular resolution, stepped-frequency realization of wideband systems simplifies implementation and offers flexibility in beamforming. Proof of concept is provided using real data collected in an anechoic chamber.

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Main Author: Ahmad, Fauzia.
Other Authors: Frazer, Gordon J., Kassam, Saleem A., Amin, Moeness G.
Language: English
Published: 2003
Online Access: http://ezproxy.villanova.edu/login?url=http://digital.library.villanova.edu/Item/vudl:173066
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