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中文摘要：
针对机载雷达近程杂波抑制提出了一种高效俯仰向空域自适应处理算法。该算法从雷达系统设计出发，在每一次相干积累时间内采用仅包含近程杂波的第一个填零脉冲为训练样本。同时，在俯仰向进行降维处理形成和、差波束，并基于旁瓣相消原理利用俯仰差波束自适应对消和波束中的近程杂波。理论分析和仿真结果表明，本文方案能高效滤除近程杂波，且俯仰主波束保形性能好，运算量小，适合工程应用。
英文摘要：
An efficient elevation-domain adaptive algorithm for airborne radar short-range clutter suppression is presented According to radar system design, the tirst received pulse, where only the short-range clutter arrives, is used as the training set within each coherent processing interval （CPI）. In addition, the elevation sum and difference beams are transformed by reduced-dimension processing. Thus, based on the side lobe cancellation principle, the difference beam can be used to cancel the short-range clutter received in the sum beam. Theoretical analysis and simulation results demonstrate that, the proposed scheme can eliminate the short-range clutter sufficiently, and have the advantages of improved main beam pattern and low computational load, which make it feasible for engineering application.
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