| 一种新的虚拟均匀线阵的构造方法 |
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| 引用本文： | 刘来财,何培宇.一种新的虚拟均匀线阵的构造方法[J].四川大学学报(自然科学版),2012,49(2):341-346. |
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| 作者姓名： | 刘来财 何培宇 |
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| 作者单位： | 四川大学电子信息学院,成都,610065 |
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| 基金项目： | 国家自然科学基金(61071159) |
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| 摘 要： | 基于四阶累积量的DOA估计具有阵列孔径扩展的功能,在基于四阶累积量的均匀线阵基础上,提出一种新的虚拟均匀线阵的构造方法,真实阵元上形成特定的非均匀线阵的排布,使阵列扩展后的四阶累积量矩阵冗余项转化为有用项.仿真结果表明,新算法不但降低了基于四阶累积量的均匀线阵算法的运算量,而且增加了虚拟阵元个数,也带来了阵列孔径扩展的好处.
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| 关 键 词： | 线阵 四阶累积量 运算量 阵元 |
| 收稿时间： | 5/9/2011 12:00:00 AM |
A new construction algorithm on virtual uniform linear array |
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| LIU Lai-Cai and HE Pei-Yu.A new construction algorithm on virtual uniform linear array[J].Journal of Sichuan University (Natural Science Edition),2012,49(2):341-346. |
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| Authors: | LIU Lai-Cai and HE Pei-Yu |
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| Institution: | (School of Electronic and Information Engineering,Sichuan University,Chengdu 610065,China) |
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| Abstract: | DOA estimation based on fourth order cumulant have the array aperture extension function. Based on fourth order cumulant of uniform linear array, a new construction algorithm on virtual uniform linear is proposed. Real array elements form a specific arrangement of non uniform linear array. The array expanded algorithm made fourth order cumulant matrix redundant items into useful items. Simulation results show that this improved algorithm reduce the computation of uniform linear array and increase the number of virtual array elements. It also brings the benefit of array aperture extention. |
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| Keywords: | linear array based on fourth order cumulant computation array element |
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