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中文摘要：
在线性调频信号体制下，针对强地杂波背景下含旋转部件目标ISAR成像问题，提出一种微多普勒信息提取新方法。首先在信号域使用相消技术剔除地杂波，拉伸处理后将相消原理应用于谱图域，从而有效实现了微多普勒信息的分离与提取，并得到了目标较为清晰的ISAR像，通过对3种地物杂波的仿真，验证了其可行性。
英文摘要：
Under chirp radar, in order to solve the imaging problem of a target with rotating parts in strong ground clutter, a new method for extracting micro-Doppler information was proposed. We applied cancellation technique in time domain to eliminate ground clutter, and transplanted the cancellation principle into spectrogram, which could effectively achieve the extraction and separation of micro-Doppler. Thus a clearer ISAR image of the target was obtained. The feasibility of the method was proved by the simulation to three kinds of ground clutter.
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