| 一种有效的子阵级波束扫描旁瓣抑制方法 |
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| 引用本文： | 胡航,刘伟会,吴群,肖勇. 一种有效的子阵级波束扫描旁瓣抑制方法[J]. 电波科学学报, 2009, 24(4) |
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| 作者姓名： | 胡航 刘伟会 吴群 肖勇 |
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| 作者单位： | 1. 哈尔滨工业大学电子与信息技术研究院,黑龙江哈尔滨,150001
2. 毫米渡/亚毫米波末制导技术国防科技重点实验室,北京,100854 |
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| 基金项目： | 中国博士后科学基金资助项目，航天支撑基金 |
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| 摘 要： | 在子阵级数字波束扫描中,方向图的旁瓣抑制是一个重要问题.分析了子阵级波束扫描的方向图特性.基于正态分布的期望子阵方向图来构造加权网络,得到了旁瓣很低的新子阵方向图,较好地抑制了子阵级波束扫描的方向图旁瓣;与基于理想空域滤波器的期望子阵方向图方法相比,显著改善了旁瓣抑制效果.仿真结果证明了所提出方法的有效性.
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| 关 键 词： | 子阵级波束扫描 旁瓣抑制 正态分布子阵方向图 加权网络 |
Effective side lobe suppression approach for beam scanning at sub-array level |
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| HU Hang,LIU Wei-hui,WU Qun,XIAO Yong. Effective side lobe suppression approach for beam scanning at sub-array level[J]. Chinese Journal of Radio Science, 2009, 24(4) |
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| Authors: | HU Hang LIU Wei-hui WU Qun XIAO Yong |
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| Affiliation: | HU Hang1 LIU Wei-hui1 WU Qun1 XIAO Yong2 (1.School of Electronics , Information Technology,Harbin Institute of Technology,Harbin Heilongjiang 150001,China,2.National Key Laboratory of Millimeter Wave Missile Guidance,Beijing 100854,China) |
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| Abstract: | For sub-array level digital beam scanning,the side lobe suppression of pattern is a critical problem.The pattern characteristics for beam scanning at sub-array level are analyzed.The weighting network is constructed based on desired sub-array patterns with normal distribution.Consequently,the new sub-array patterns with low side lobe are obtained.For sub-array level beam scanning,the proposed approach could reduce side lobe effectively.Compared with the desired sub-array pattern based on the ideal space-dom... |
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| Keywords: | beam scanning at sub-array level side lobe suppression sub-array pattern with normal distribution weighting network |
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