Autofocusing of inverse synthetic aperture radar images using contrast optimization

作者：F. Berizzi, Giovanni Umberto Corsini · 发表于：IEEE Transactions on Aerospace and Electronic Systems · 年份：1996 · DOI：10.1109/7.532282 · 被引用次数：333 · 研究领域：Advanced SAR Imaging Techniques、Microwave Imaging and Scattering Analysis、Geophysical Methods and Applications

A number of autofocusing techniques are proposed for motion compensation in inverse synthetic aperture radar (ISAR) imaging of objects. These techniques are based on the optimization of a contrast function, which represents a measure of the degree of focus of the image. Three novel image contrast functions are defined and the main steps of the autofocusing algorithm are described. A comparison of the behavior of the proposed techniques is performed analyzing some results obtained from simulation of realistic targets.