通信学报 ›› 2014, Vol. 35 ›› Issue (12): 28-35.doi: 10.3969/j.issn.1000-436x.2014.12.004

• 学术论文 • 上一篇    下一篇

平面极化天线阵列的DOA及极化参数降维估计方法

司伟建,朱瞳,张梦莹   

  1. 哈尔滨工程大学 信息与通信工程学院,黑龙江 哈尔滨 150001
  • 出版日期:2014-12-25 发布日期:2017-06-17
  • 基金资助:
    中央高校基本科研业务基金资助项目

Dimension-reduction MUSIC for jointly estimating DOA and polarization using plane polarized arrays

Wei-jian SI,Tong ZHU,Meng-ying ZHANG   

  1. School of Information and Communication Engineering,Harbin Engineering University,Harbin 150001,China
  • Online:2014-12-25 Published:2017-06-17
  • Supported by:
    The Fundamental Research Funds for the Central Universities

摘要:

基于极化阵列的长矢量数据模型,提出了一种适用于平面极化天线阵列的 DOA 和极化参数联合估计的方法。通过利用谱函数的偏导数条件进行降维优化,从而大大降低在搜索过程中的运算量,同时保证了分辨能力与估计精度。通过仿真实验可以看出,所提算法相比于目前较有效的基于四元数的Q-MUSIC算法有着更好的分辨力与较小的均方误差,且减少了运算量。

关键词: DOA估计, 极化敏感天线, 降维MUSIC算法, 联合估计

Abstract:

Based on the long-vector data modal of polarization sensitive array,a joint estimation of DOA and polarization information algorithm suitable for plane polarized antenna arrays was proposed.Using the condition of partial derivative of spectral function to reduce the dimensionality,the computation significantly was decreased but also guarantees the resolution and estimation accuracy.Simulation results show that the proposed algorithm has better resolution and lower square mean compared to the effective Quaternion-MUSIC algorithm,and reduces computation of estimation.

Key words: DOA estimation, polarization sensitive array, dimension-reduction MUSIC algorithm, joint estimation