Departmental Papers (ESE)


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.

Document Type

Conference Paper

Date of this Version

April 2003


Copyright 2003 IEEE. Reprinted from Proceedings of the IEEE International Conference on Acoustics, Speech, and Signal Processing 2003 (ICASSP 2003), Volume 5, pages 89-92.
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Date Posted: 15 November 2004

This document has been peer reviewed.