| 一种稳健的低旁瓣波束形成技术 |
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| 引用本文： | 赵红训,李海清,陈卫东,解静.一种稳健的低旁瓣波束形成技术[J].无线电工程,2010,40(9):26-28. |
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| 作者姓名： | 赵红训 李海清 陈卫东 解静 |
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| 作者单位： | 中国电子科技集团公司第五十四研究所,河北,石家庄,050081 |
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| 摘 要： | 为了更好地抑制来自非期望方向的信号,波束形成器形成较低的旁瓣以抑制干扰。针对传统的最小方差无畸变响应(MVDR)波束形成器抑制干扰性能不稳健的缺点,提出了一种自适应MVDR波束形成方法。该算法通过对已形成波束图搜索极值点,排序取次大值即最高旁瓣,将其对应方向增加到"零陷"方向组,不断迭代以降低旁瓣级。结合均匀半圆阵所作的计算机仿真验证了该方法的正确性和有效性。
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| 关 键 词： | 波束形成 波束形成器 MVDR 旁瓣级 |
A Robust Low-sidelobe Beamforming Algorithm |
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| ZHAO Hong-xun,LI Hai-qing,CHEN Wei-dong,XIE Jing.A Robust Low-sidelobe Beamforming Algorithm[J].Radio Engineering of China,2010,40(9):26-28. |
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| Authors: | ZHAO Hong-xun LI Hai-qing CHEN Wei-dong XIE Jing |
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| Affiliation: | ( The 54th Research Irtstitute of CETC, Shijiazhuang Hebei 050081, China ) |
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| Abstract: | The minimum variance distortionless response （MVDR） beamformer is sensitive to the direction of the interference. To overcome the shortcoming in traditional （MVDR） beamformer that is not robust for suppression of interference, an adaptive MVDR beamforming algorithm is proposed. By searching the highest sidelobe of previously formed beam pattern, the corresponding direction is added to the ＂null＂ direction to receive the new weighted value which can obtain a lower sidelobe level. Finally, simulation with semicircle array validates the effectiveness of the algorithm. |
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| Keywords: | MVDR |
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