| 累量域二维波达方向估计方法 |
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| 引用本文： | 夏铁骑,汪学刚,郑毅. 累量域二维波达方向估计方法[J]. 电子科技大学学报(社会科学版), 2008, 0(6) |
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| 作者姓名： | 夏铁骑 汪学刚 郑毅 |
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| 作者单位： | 电子科技大学电子工程学院; |
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| 基金项目： | 国家自然科学基金(60372022); 新世纪优秀人才支持计划(NCET-05-0806) |
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| 摘 要： | 提出了一种新的适合任意高斯噪声环境的高分辨二维波达方向(DOA)估计方法——联合对角化4阶累积量-DOA矩阵方法。该方法以阵列的特殊结构为基础,利用四阶累积量构建3个子阵,采用联合对角化技术获得信号的二维角估计,适用于存在一维角度兼并的情况,且无需二维谱峰搜索和参数配对,从而避免了配对算法在低信噪比、小角间距或者复杂的信号传播环境下所带来的弊端。仿真结果证明了该方法的有效性。
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| 关 键 词： | 阵列天线 波达方向 4阶累积量 联合对角化 |
New Cumulant Based Method for 2-D DOAs Estimation |
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| XIA Tie-qi,WANG Xue-gang,, ZHENG Yi. New Cumulant Based Method for 2-D DOAs Estimation[J]. Journal of University of Electronic Science and Technology of China(Social Sciences Edition), 2008, 0(6) |
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| Authors: | XIA Tie-qi WANG Xue-gang ZHENG Yi |
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| Affiliation: | XIA Tie-qi,WANG Xue-gang,, ZHENG Yi (School of Electronic Engineering,University of Electronic Science , Technology of China Chengdu 610054) |
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| Abstract: | A novel joint diagonalization fourth-order cumulants DOA matrix method is proposed to estimate the higher 2-D DOAs of uncorrelated narrowband signals in arbitrary Gaussian noise environments. Based on the special structure of the array,the method constructs three subarrays by exploiting fourth-order cumulants,thereby obtaining the 2-D DOAs of the array based on joint diagonalization with neither peak searching nor pair matching. The new method can handle sources with common 1-D angles and remedy the disadva... |
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| Keywords: | antenna array DOA fourth-order cumulants joint diagonalization |
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