| 基于高阶累积量的自适应波束形成 |
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| 引用本文： | 赵犁丰,傅坚,刘桂云.基于高阶累积量的自适应波束形成[J].中国海洋大学学报(自然科学版),2000,30(4). |
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| 作者姓名： | 赵犁丰 傅坚 刘桂云 |
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| 作者单位： | 1. 青岛海洋大学电子工程系,青岛,266003
2. 宁波大学航海学院,宁波,315000 |
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| 基金项目： | 山东省优秀中青年科学家科研奖励基金资助 |
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| 摘 要： | 常规波束形成器仅限于利用信号的二阶统计特性。作者采用高阶累积量估计期望信号的导向矢量 (Steering Vector) ,实现了一种基于高阶累积量的自适应波束形成器 (HCAB)。该波束形成器利用信号的更高阶统计特性 ,减少了对阵列流型的依赖 ,具有较好的容差性 ,能自动跟踪信号。数值模拟实验表明该波束形成器工作良好。
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| 关 键 词： | 自适应阵列处理 波束形成 高阶累积量 |
Cumulant-Based Adaptive Beamforming |
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| Zhao Lifeng,Fu Jian,Liu Guiyun.Cumulant-Based Adaptive Beamforming[J].Periodical of Ocean University of China,2000,30(4). |
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| Authors: | Zhao Lifeng Fu Jian Liu Guiyun |
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| Abstract: | In comparison with normal adaptive digital beamforming that only uses the second order statistics of signals, a Higher order cumulant based adaptive digital beamformer (HCAB) is discussed in the paper. The HCAB utlizes higher order cumulants to construct a fourth order cumulant matrix to estimate the steering vector of the desired signal. Because higher order cumulants include more statistical information, the HCAB beamformer is not very dependent on the manifold of the array, easily adaptive to the error, and able to track moving objects. The results of simulation indicate its good performance. |
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| Keywords: | adaptive array processing beamforming higher order cumulants |
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