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Three-dimensional interferometric ISAR imaging for target scattering diagnosis and modeling

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2 Author(s)
Xiaojian Xu ; Dept. of Electr. Eng., Nebraska Univ., Lincoln, NE, USA ; Narayanan, R.M.

Two-dimensional (2-D) inverse synthetic aperture radar (ISAR) imaging has been widely used in target scattering diagnosis, modeling and target identification. A major shortcoming is that a 2-D ISAR image cannot provide information on the relative altitude of each scattering center on the target. In this paper, we present an interferometric inverse synthetic aperture radar (IF-ISAR) image processing technique for three-dimensional (3-D) target altitude image formation. The 2-D ISAR images are obtained from the signature data acquired as a function of frequency and azimuthal angle. A 3-D IF-ISAR altitude image can then be derived from two 2-D images reconstructed from the measurements by antennas at different altitudes. 3-D altitude image formation examples from both indoor and outdoor test range data are demonstrated on complex radar targets

Published in:

Image Processing, IEEE Transactions on  (Volume:10 ,  Issue: 7 )