| 宽频段空间信号频率、二维到达角和极化联合估计 |
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| 引用本文： | 王激扬,王建英,陈天麒.宽频段空间信号频率、二维到达角和极化联合估计[J].电子与信息学报,2002,24(7):872-878. |
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| 作者姓名： | 王激扬 王建英 陈天麒 |
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| 作者单位： | 电子科技大学电子工程学院,成都,610054 |
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| 基金项目： | 电科院预研经费资助项目 |
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| 摘 要： | 在空间欠采样的条件下,通过巧妙定义稀疏L型阵列的四阶累积量输出矩阵,利用高阶累计量的盲高斯及阵列扩展特性,实现了宽频段空间非高斯信号频率、到达角和极化估计的分离,给出了一个基于四阶累积量 ESPRIT和整数搜索解模糊的任意高斯噪声环境下多个独立空间信号频率、二维到达角和极化的联合估计算法,L型阵列由和坐标轴方向一致的偶极子对组成,数值模拟结果证实了该文方法的有效性。
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| 关 键 词： | 联合估计 四阶累积量 ESPRIT 整数搜索 |
| 收稿时间： | 2000-8-23 |
| 修稿时间： | 2000年8月23日 |
Joint estimation of frequencies, two-dimensional AOAs and polarization for spatial broad-band signals |
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| Wang Jiyang,Wang Jianying,Chen Tianqi.Joint estimation of frequencies, two-dimensional AOAs and polarization for spatial broad-band signals[J].Journal of Electronics & Information Technology,2002,24(7):872-878. |
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| Authors: | Wang Jiyang Wang Jianying Chen Tianqi |
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| Affiliation: | Dept. of Electronic Engineering UEST of China Chengdu 610054 China |
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| Abstract: | Under the condition of spatial subsampling, with flexible definition of fourth-order cumulant matrix of L-shaped array antennas' output, utilizing the blind Gaussian and aperture extension properties of high-order cumulant, the estimation of frequency and two-dimensional(2D) Angles Of Arrivals (AOAs) are separated from the estimation of polarization of spatial non-Gaussian broad-band signals. An algorithm based on fourth-order cumulant ESPRIT and integral search is proposed to jointly estimate the parameters in multi-signal and arbitrary Gaussian noise environment. The array antennas are consisted of crossed dipoles that are parallel to the coordinate axes. Numerical simulation results verify the feasibility of this method. |
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| Keywords: | Joint estimation Forth-order cumulant ESPRIT Integral research |
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