DOA Estimation and Mutual Coupling Calibration Algorithm for Array in Plasma Environment

被引：5

作者：

Qin, Ling ^{[1
]}

Li, Chenlu ^{[1
]}

Du, Yongxing ^{[1
]}

Li, Baoshan ^{[1
]}

机构：

[1] Inner Mongolia Univ Sci & Technol, Sch Informat Engn, Baotou 014010, Peoples R China

来源：

IEEE TRANSACTIONS ON PLASMA SCIENCE | 2020年 / 48卷 / 06期

基金：

中国国家自然科学基金;

关键词：

Antenna arrays; Plasmas; Couplings; Mutual coupling; Direction-of-arrival estimation; Calibration; Array signal processing; Direction-of-arrival (DOA) estimation; mutual coupling; plasma; uniform linear array (ULA); ANTENNA-ARRAYS;

D O I：

10.1109/TPS.2020.2987041

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

There is a multipath effect caused by multireflections between the plasma and the vehicle surface, and there are coupling characteristics between array antennas. These two errors will seriously affect the quality of navigation signal. To solve the mutual coupling of uniform linear array (ULA) of plasma, a direction-of-arrival (DOA) estimation algorithm based on mutual coupling correction is proposed. The algorithm is based on the special structure of mutual coupling matrix (MCM) of ULA and combines spatial smoothing algorithms. It solves a quadratic optimization problem under the linear constraint and utilizes peak search technology to obtain DOA. The effectiveness of the proposed algorithm is verified by the simulation results. Numerical simulation is applied in this article to analyze the influence of array antenna from the plasma. In addition, array antenna is calibrated with the mutual coupling calibration information estimated by the algorithm. The result of antenna calibration validates the correctness of the simulation conclusion.

引用

页码：2075 / 2082

页数：8

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