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Imaging of strongly-scattering targets from real data

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6 Author(s)
Morris, J.B. ; Rome Lab., Hanscom AFB, MA, USA ; McGahan, R.V. ; Schmitz, J.L. ; Wing, R.M.
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Measured bistatic scattered fields for five new targets were added to the Ipswich data set. Three of the targets remained a mystery until revealed at a special session on image reconstruction from real data, at the 1996 IEEE AP-S International Symposium and URSI Radio Science Meeting in Baltimore. We provided coherent scattered-field data for more complicated scattering structures, as well as many more transmit-illumination directions, or views, than we had previously. Reconstructions corresponding to the first. We show back-propagated images of all five targets, using aspect diversity in diffraction tomography at a 3 cm wavelength. As expected, those targets that possess multiple-scattering effects, and/or have high contrast, fail to image properly. Targets from the Ipswich data set may serve as a useful standard against which researchers, involved in inverse scattering, can compare the merits of their inversion algorithms

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Antennas and Propagation Magazine, IEEE  (Volume:39 ,  Issue: 2 )