Abstract

Inverse synthetic aperture radar is widely used for radar imaging of targets, such as aircrafts, ships, missiles and so on. Conventional 2-D ISAR imaging can only obtain the projection in the range-Doppler plane. It cannot get the actual physical size and relative position of the scatter. What's more, in the traditional ISAR imaging radar system, the target is located in the far-field region. This paper presents a short-range moving target 3-D ISAR imaging method. By using the wavefront reconstruction algorithm, we can get the 2-D image of the target, and then through the interferometric processing of two ISAR images, the third dimension coordinate information is obtained. Simulation results show the feasibility of the algorithm.

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