| 馈电误差对相控阵旁瓣电平的影响研究 |
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| 引用本文： | 王平.馈电误差对相控阵旁瓣电平的影响研究[J].无线电工程,2007,37(1):38-40. |
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| 作者姓名： | 王平 |
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| 作者单位： | 中国电子科技集团公司第54研究所,河北,石家庄,050081 |
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| 摘 要： | 相控阵天线由于馈电误差的影响,旁瓣电平恶化,抗干扰能力降低。由于馈电误差随机分布,提出了采用数字统计特征分析旁瓣电平恶化情况的方法。论述了均值旁瓣电平和峰值旁瓣电平的基本原理。通过理论分析和数值模拟,计算了峰值旁瓣电平的概率密度分布,并给出了抑制旁瓣电平恶化的一些措施。
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| 关 键 词： | 相控阵 馈电误差 统计特征 均值旁瓣电平 峰值旁瓣电平 |
| 文章编号： | 1003-3106（2007）01-0038-03 |
| 修稿时间： | 2006-06-23 |
Research on Effect of Feed Error on Phased Array Sidelobe Level |
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| WANG Ping.Research on Effect of Feed Error on Phased Array Sidelobe Level[J].Radio Engineering of China,2007,37(1):38-40. |
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| Authors: | WANG Ping |
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| Affiliation: | The 54th Research Institute of CETC, Shijiazhuang Hebei 050081, China |
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| Abstract: | Due to effects of feed errors,the phased array antenna's sidelobe levels are degraded and the capability of anti-jamming is reduced.As feed errors are distributed random,a method of adopting statistical characteristics to analyze the degradation of sidelobe levels is proposed.In this paper,the basic principle about the mean sidelobe level and the peak sidelobe level are described.The probability density distribution of peak sidelobe levels is studied by theoretical analysis and numerical simulation,and several approaches of suppression of sidelobe level degradation are given. |
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| Keywords: | phased array feed error statistical characteristic mean sidelobe level peak sidelobe level |
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