残缺电磁矢量阵列直线信号波达方向估计

徐友根; 刘志文

doi:10.3724/SP.J.1146.2007.01471

残缺电磁矢量阵列直线信号波达方向估计

doi: 10.3724/SP.J.1146.2007.01471

基金项目:

国家自然科学基金(60602037)资助课题

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出版历程
- 收稿日期: 2007-09-13
- 修回日期: 2008-12-18
- 刊出日期: 2009-04-19

DOA Estimation of Rectilinear Signals Using Defective Electromagnetic Vector Arrays

摘要

摘要: 该文提出了一种适用于残缺电磁矢量阵列的非圆极化-多重信号分类直线信号(如调幅、二进制相移键控信号等)波达方向估计方法，它可视为非圆-多重信号分类方法基于矢量阵列的推广，并可综合利用非圆信号的非零共轭矩信息以及极化敏感阵列的极化多样性。与传统极化-多重信号分类方法一样，该方法只需在角度参数空间进行搜索。此外，该文方法可直接推广于残缺声矢量阵列。计算机仿真结果验证了该文方法的有效性。
- 波达方向估计;矢量传感器;非圆信号;极化
Abstract: Noncircular polarimetric-MUSIC (Multiple Signal Classification) is herein proposed for Direction Of Arrival (DOA) estimation of rectilinear signals (such as AM, BPSK communications signals) by using one or a number of possibly defective (incomplete) electromagnetic vector-sensors. As an extension of the existing noncircular MUSIC, this new MUSIC variant can incorporate the redundancy in the nonvanishing conjugate moments and polarization diversity present in a polarization-sensitive array. It can also be directly extended to a defective acoustic vector array. Simulation results are given to validate the proposed method.

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