A coarray-based near-field, wideband synthetic aperture beamformer using stepped-frequency signal synthesis and post-data acquisition processing is presented. While coarray techniques offer significant reduction in the number of array elements for a given angular resolution, the hybrid subarray-stepped frequency realization of wideband systems simplifies implementations and offers flexibility in beamforming. Proof of concept is provided using real data collected in an anechoic chamber for several pulse shapes and array weightings.
Design and implementation of near-field, wideband synthetic aperture beamformers
IEEE Transactions on Aerospace and Electronic Systems ; 40 , 1 ; 206-220
2004-01-01
2406585 byte
Article (Journal)
Electronic Resource
English
Design and Implementation of Near-Field, Wideband Synthetic Aperture Beamformers
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