| 摘要: |
| 在噪声雷达中，传统相关处理方法的距离旁瓣受到时宽带宽积的限制，在有限相关处理时间内得到的距离旁瓣较高，会造成微弱目标被强目标、杂波旁瓣淹没的现象。提出一种基于抽取最小均方（Least Mean Square,LMS）滤波的噪声雷达旁瓣抑制方法，将LMS滤波器的系数作为距离压缩结果，从而获取较低的距离旁瓣。对该方法的性能进行了理论分析，并通过数字仿真验证了算法的有效性和理论分析的正确性。 |
| 关键词: 噪声雷达 距离旁瓣抑制 抽取LMS算法 |
| DOI： |
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| 基金项目: |
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| A range sidelobe suppression method based on decimation LMS filter |
| LU Zhenxing,GUAN Jixing,TANG Chengyuan,ZHANG Yan,HONG Yongbin,YIN Wei |
| (The 54th Research Institute of China Electronics Technology Group Corporation,Shijiazhuang 050081,China;The 54th Research Institute of China Electronics Technology Group Corporation,Shijiazhuang 050082,China;Unit 32380 of PLA,Beijing 100072,China;The 54th Research Institute of China Electronics Technology Group Corporation,Shijiazhuang 050083,China;The 54th Research Institute of China Electronics Technology Group Corporation,Shijiazhuang 050084,China) |
| Abstract: |
| In noise radar,the range sidelobe of traditional correlation method is limited by the time bandwidth product.The high range sidelobe caused by short correlation time will lead to the masking of weak target by strong targets or clutter.This paper proposes a range sidelobe suppression method based on decimation least mean square(LMS）filter for noise radar,which uses the coefficients of the LMS filter as range compression result to obtain lower range sidelobe.Theoretical analysis is given to the performance of the proposed method,and efficiency of the proposed method and validity of the theoretical analysis are verified by numerical simulation. |
| Key words: noise radar range sidelobe suppression decimation LMS algorithm |
