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首页> 外文期刊>IEEE Transactions on Aerospace and Electronic Systems >ISAR motion compensation via adaptive joint time-frequencytechnique
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ISAR motion compensation via adaptive joint time-frequencytechnique

机译：通过自适应联合时频技术进行ISAR运动补偿

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摘要

A novel approach for inverse synthetic aperture radar (ISAR) imaging is presented for both target translational motion and rotational motion nonuniformity compensation. The basic idea is to perform Doppler tracking to individual scatterers via an adaptive joint time-frequency (AJTF) projection technique. After maximizing the projection of the phase function to a set of basis functions in time-frequency plane, the Doppler frequency drift of the strongest scatterer in the range bin is automatically tracked out and the multiple prominent point processing (PPP) scheme is implemented to eliminate both the translational motion error and rotational motion nonuniformity. Further the azimuth spacing can be estimated, which permits polar reformatting of the original collected data
机译：针对目标平移运动和旋转运动不均匀性补偿，提出了一种用于合成孔径雷达（ISAR）逆成像的新颖方法。基本思想是通过自适应联合时频（AJTF）投影技术对单个散射体执行多普勒跟踪。将相位函数在时频平面上的投影最大化到一组基函数后，将自动跟踪距离仓中最强散射体的多普勒频率漂移，并实施多突出点处理（PPP）方案以消除平移运动误差和旋转运动不均匀性。此外，可以估计方位间隔，从而可以对原始收集的数据进行极性重新格式化

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