朱永恒,黎明,牛炯,张玲,纪永刚

• 1:中国海洋大学工程学院山东省高校海洋机电装备与仪器重点实验室
• 2:国家海洋局第一研究所

摘要(Abstract)：

本文根据射频干扰的来源和特性构造出其基本的理论模型,并结合数据处理流程从理论上分析了射频干扰在方位-距离-多普勒域的特性,得出了在不同距离上,射频干扰具有强相关性;而在不同方位上,射频干扰具有同频但不同幅的特点。基于此分析,在实际工程应用中,分析常规射频干扰抑制方法的不足,为减少干扰抑制过程对目标信息的影响,提出了包括回波信号方向分解、射频干扰估计与抑制、幅值合成三个步骤。通过仿真和实测数据对算法进行了验证,并与常规抑制方法进行对比,结果显示该方法对射频干扰具有良好的抑制效果,有效提高了被射频干扰覆盖的目标点的信干比。

关键词(KeyWords)： 高频地波雷达;射频干扰;波束形成;自协方差矩阵

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(61132005);; 国家海洋局公益性项目(2015418002)资助~~

作者(Author): 朱永恒,黎明,牛炯,张玲,纪永刚

DOI: 10.16441/j.cnki.hdxb.20160014

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