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吴仁彪

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期刊论文

Migration Through Resolution Cell Compensation in ISAR Imaging

吴仁彪Mengdao Xing Student Member IEEE Renbiao Wu Senior Member Jinqiao Lan and Zheng Bao

IEEE GEOSCIENCE AND REMOTE SENSING LETTERS, VOL. 1, NO.2, APRIL 2004,-0001,():

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摘要/描述

Range-Doppler (RD) processing is widely used in conventional inverse synthetic aperture radar (ISAR) imaging. The unwanted translational motion of moving targets is compensated by envelope alignment and autofocus. For existing ISAR imaging algorithms, the scatterers\' migration through resolution cells (MTRC) caused by the rotational motion is usually ignored. With the improvement of resolution or the increase of target size, MTRC cannot be neglected. In this letter, the keystone formatting algorithm developed in SAR is used for the MTRC compensation in ISAR. Before the keystone formatting, coherent processing must be performed on the raw phase history data. An effective approach is proposed for this kind of coherent processing. Numerical examples are provided to demonstrate the performance of the proposed approach.

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