| 通道响应失配对DBF天线旁瓣电平的影响 |
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| 引用本文： | 张林让,保铮,张玉洪.通道响应失配对DBF天线旁瓣电平的影响[J].电子与信息学报,1995,17(3):268-275. |
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| 作者姓名： | 张林让 保铮 张玉洪 |
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| 作者单位： | 西安电子科技大学电子工程研究所，西安电子科技大学电子工程研究所，西安电子科技大学电子工程研究所 西安 710071，西安 710071，西安 710071 |
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| 摘 要： | 本文研究了通道响应失配对数字波束形成(DBF)天线旁瓣电平的影响,然后分析了通道频率响应失配与脉冲响应失配的关系,进而得到通道间频率响应失配对天线旁瓣电平的影响。结果表明,用DBF技术实现超低旁瓣天线对通道频率匹配的要求相当高。最后计算机模拟验证了理论分析结果。
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| 关 键 词： | 阵列天线 数字波束形成 容差 均衡 |
| 收稿时间： | 1992-9-10 |
| 修稿时间： | 1994-11-24 |
EFFECT OF INTERCHANNEL MISMATCH ON THE SIDELOBE LEVEL OF A DBF ARRAY |
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| Zhang Linrang,Bao Zheng,Zhang Yuhong.EFFECT OF INTERCHANNEL MISMATCH ON THE SIDELOBE LEVEL OF A DBF ARRAY[J].Journal of Electronics & Information Technology,1995,17(3):268-275. |
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| Authors: | Zhang Linrang Bao Zheng Zhang Yuhong |
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| Institution: | Institute of Electronic Engineering,Xidian University, Xi'an 710071 |
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| Abstract: | This paper discusses the effect of impulse response aberration between channels on the sidelobe level of a DBF array, and then derives the relationship between the frequency response mismatch and the impulse response aberration of a channel, by which the effect of frequency response mismatch between channels on the antenna sidelobe level is acquired. It shows that frequency response mismatch degrades sidelobe considerablely. Finally, the results by computer simulations are demonstrated. |
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| Keywords: | Array antenna Digital beam-forming Tolerance Equalization |
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