Four-Dimensional Parameter Estimation of Near-Field Source Using Higher-Order Cumulant

LIANG Jun-li; JI Bang-jie; ZHAO Feng; ZHANG Jun-ying

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Four-Dimensional Parameter Estimation of Near-Field Source Using Higher-Order Cumulant

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- Four-Dimensional Parameter Estimation of Near-Field Source Using Higher-Order Cumulant
- Acta Electronica Sinica Vol. 35, Issue 9, Pages: 1734-1738(2007)
- 作者机构：
  
  1. 水下信息处理与控制国家重点实验室,陕西,西安,710075
  2. 中国船舶重工集团公司第705研究所,陕西,西安,710075
  3. 西安电子科技大学计算机学院,陕西,西安,710071
  4. 水下信息处理与控制国家重点实验室陕西西安,710075
  5. 中国船舶重工集团公司第705研究所陕西西安,710075
  6. 西安电子科技大学计算机学院陕西西安,710071
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN911.23
- Published：2007
- 稿件说明：
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LIANG Jun-li, JI Bang-jie, ZHAO Feng, et al. Four-Dimensional Parameter Estimation of Near-Field Source Using Higher-Order Cumulant[J]. Acta Electronica Sinica, 2007, 35(9): 1734-1738.
DOI：

LIANG Jun-li, JI Bang-jie, ZHAO Feng, et al. Four-Dimensional Parameter Estimation of Near-Field Source Using Higher-Order Cumulant[J]. Acta Electronica Sinica, 2007, 35(9): 1734-1738. DOI：

摘要

本文提出了一种新的多个近场窄带信源距离、频率及二维到达角四维参数联合估计算法.首先基于特定序号阵元输出计算的高阶累积量构造4个矩阵

接着结合这些矩阵的结构特点构造3个新的矩阵

然后基于新构造矩阵分解得到的特征值和特征向量联合估计信源参数.与现有的方法相比

本文给出的方法有效提高了阵列孔径利用率

参数自动配对.仿真结果表明该算法是有效的.

Abstract

We propose a novel joint estimation algorithm for range

frequency

and two-dimensional (2-D) direction-of-arrival (DOA) of each narrowband source in the near field.The proposed method constructs four matrices using the higher-order cumulants of the properly chosen sensor outputs

and forms three new ones using the four matrices

then estimates the source parameters from the new ones’ eigenvalues and the corresponding eigenvectors.In comparison with the conventional methods

the proposed approach efficiently uses the array aperture

and pairs parameters automatically.Finally

the simulation results are presented to validate the performance of the proposed method.

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