摘 要：针对扩频信号中的强单载波干扰问题，本文提出了一种基于维纳滤波的单频干扰抑制方法。该方法借鉴了维纳滤波的思想，通过构造本地信号，可达到最小均方误差准则下的最优估计。实验表明，该方案复杂度低、实时性优、干扰抑制效果明显，经本文所提算法处理后，单载波干扰可降低到热噪声电平以下。已成功运用于工程实践中。
关键词：维纳滤波；单频干扰；扩频
中图分类号：TN973；TN713 文献标识码：A 文章编号：2096-4706（2019）09-0062-03
Single Carrier Interference Suppression Method Based on Wiener Filtering
WU Miao，GUO Jiaxun
（The 27th Research Institute of China Electronic Science and Technology Group Corporation，Zhengzhou 450047，China）
Abstract：In this paper，a single-frequency interference suppression method based on Wiener filter is proposed. The method uses Wiener filter for reference and achieves the optimal estimation under the minimum mean square error criterion by constructing local signals.Experiments show that the scheme has low complexity，good real-time performance and obvious interference suppression effect. After the algorithm proposed in this paper，the single carrier interference can be reduced to below the thermal noise level. It has been successfully applied in engineering practice.
Keywords：wiener filter；single-frequency interference；spread spectrum
参考文献：
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作者简介：
吴邈（1987-），女，汉族，河南南阳人，工程师，毕业于北京理工大学，硕士研究生，研究方向：测控信号处理；
郭嘉勋（1987-），男，汉族，河南登封人，工程师，毕业于西安电子科技大学，硕士研究生，研究方向：测控信号处理。