基于传播算子的近场源二维参数联合估计

doi:10.16182/j.issn1004731x.joss.201710045

系统仿真学报 ›› 2017, Vol. 29 ›› Issue (10): 2588-2592.doi: 10.16182/j.issn1004731x.joss.201710045

基于传播算子的近场源二维参数联合估计

梁彩凤^1,2, 潘静¹, 刘颖², 李旭²

1.天津职业技术师范大学,天津 300222;
2.北京交通大学,北京 100044

收稿日期:2015-09-29 发布日期:2020-06-04
作者简介:梁彩凤(1981-),女,山东青岛,博士生,讲师,研究方向为阵列信号处理,UWB无线通信。
基金资助:
国家自然科学基金(61271412),天津职业技术师范大学校级项目(KJ14-33,RC14-46,KJ1713)

Two-dimensional Parameter Estimation of Near Field Sources Based on Propagator Method

Liang Caifeng^1,2, Pan Jing¹, Liu Ying², Li Xu²

1. Electronic Engineering Department, Tianjin University of Technology and Education, Tianjin 300222, China;
2. School of Electronic and Information Engineering, Beijing Jiaotong University, Beijing 100044, China

Received:2015-09-29 Published:2020-06-04
About author:Pang shan(1981-), female, Yantai, Shandong, master degree, lecturer, Research direction for include intelligent computation, theories and applications of machine learning.

摘要/Abstract

摘要： 提出一种基于四阶累积量和传播算子的近场源方向角和距离二维参数联合估计算法,算法利用均匀线阵接收的数据构造四阶累积量矩阵,采用传播算子方法估计出接收信号的噪声子空间,构造MUSIC谱函数,通过谱峰搜索方法,估计信源的方向角和距离二维参数。与传统MUSIC算法相比,所提出的算法利用传播算子方法直接估计出噪声子空间的最小二乘解,而非传统奇异值分解算法的正交解,在估计性能上略逊色于传统的奇异值分解算法,但是却具有较低的计算复杂度,仿真实验验证了所提出算法的有效性。

关键词: 近场源, 四阶累积量, 方向估计, 距离估计, 传播算子

Abstract: A new method based on fourth-order cumulant and propagator method for the joint estimation of the range and DOA of spatial near-field sources is presented. The fourth-order cumulant matrix is constructed using the received uniform linear array data, the received signal noise subspace is estimated by propagator method; the range and DOA of spatial near-field sources are gotten through the spectrum peak search method after the MUSIC spectrum function construction. Compared with the traditional MUSIC algorithm, the presented algorithm with the propagator method directly estimates the least squares solution of the noise subspace, rather than conventional orthogonal solution of singular value decomposition algorithm. Although the estimation performance of the presented alogorithm is slightly inferior to the traditional singular value decomposition algorithm, it has lower computational complexity. The simulation results show the proposed method is effective.

Key words: near-field source, four-order cumulant, DOA estimate, range estimate, propagator method

中图分类号:

TP391.9

梁彩凤, 潘静, 刘颖, 李旭. 基于传播算子的近场源二维参数联合估计[J]. 系统仿真学报, 2017, 29(10): 2588-2592.

Liang Caifeng, Pan Jing, Liu Ying, Li Xu. Two-dimensional Parameter Estimation of Near Field Sources Based on Propagator Method[J]. Journal of System Simulation, 2017, 29(10): 2588-2592.

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基于传播算子的近场源二维参数联合估计

Two-dimensional Parameter Estimation of Near Field Sources Based on Propagator Method

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