| 近场源DOA、距离、极化参数及频率联合估计算法 |
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| 引用本文： | 黄家才,石要武,陶建武.近场源DOA、距离、极化参数及频率联合估计算法[J].计算机工程与应用,2006,42(19):17-19,83. |
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| 作者姓名： | 黄家才 石要武 陶建武 |
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| 作者单位： | 1. 吉林大学通信工程学院,长春,1300252
2. 空军航空大学,长春,130022 |
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| 基金项目： | 吉林大学校科研和教改项目;吉林省基础研究计划 |
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| 摘 要： | 文章研究了近场情况下多信源到达角(DOA)、距离、极化参数及频率的四维参数联合估计问题,建立了近场源在极化域的参数估计模型。文中所考虑的极化敏感阵列由和坐标轴方向一致的偶极子对构成,分别感应x轴方向和y轴方向的电场分量。该算法不需要谱峰搜索,直接给出各参数的闭式解。由于使用了四阶累积量,因此该算法适用于任意高斯噪声环境。仿真结果验证了该文方法的有效性。
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| 关 键 词： | 极化估计 距离估计 DOA估计 频率估计 四阶累积量 |
| 文章编号： | 1002-8331-（2006）19-0017-03 |
| 收稿时间： | 2006-04-01 |
| 修稿时间： | 2006-04-01 |
Joint Estimation of DOA,Range,Polarization and Frequency of Near-Field Sources |
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| Huang Jiacai,Shi Yaowu,Tao Jianwu.Joint Estimation of DOA,Range,Polarization and Frequency of Near-Field Sources[J].Computer Engineering and Applications,2006,42(19):17-19,83. |
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| Authors: | Huang Jiacai Shi Yaowu Tao Jianwu |
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| Affiliation: | 1.College of Communication, Jilin University, Changchun 130025; 2.University of Aeronautics, Changehun 130022 |
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| Abstract: | In this paper,the joint estimation of Direction-of-Arrival(DOA),range,polarization and frequency of near field source is investigated.Based on the fourth-order cumulant,the parameters estimation model is established in the polarization field.The Uniform Linear Array(ULA) considered here consists of orthogonal dipole-pairs,which measure the x-axis and y-axis components of the electric-field of the polarized signals.Without spectral peak searching,the proposed algorithm gives a closed-form solution and can be employed to arbitrary Gaussian noise environment since the fourth-order cumulant is utilized.Simulations are presented to show the effectiveness of the algorithm. |
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| Keywords: | polarization estimate range estimate DOA estimate frequency estimate fourth-order cumulant |
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