Fast root-MUSIC algorithm based on Nyström method and spectral factorization

被引：0
|
作者：
Liu, Xiaoyu [1 ]
Chen, Junli [1 ]
Xu, Lveqiu [1 ]
机构：
[1] School of Communication Information Engineering, Shanghai University, Shanghai,200072, China
来源：
Progress in Electromagnetics Research Letters | 2018年 / 78卷
关键词：
Factorization - Covariance matrix - Iterative methods;
D O I：
10.2528/pierl18060301
中图分类号：
学科分类号：
摘要：
A fast Root-MUSIC algorithm based on Nyström method and spectral factorization is proposed. By using Nyström method, only two sub-matrices of the sample covariance matrix are calculated, which avoids complete calculation and has the advantage of low computational complexity. At the same time, the polynomial coefficients of the Root-MUSIC based on the Nyström method are conjugated, and the order of the polynomial is reduced by half when using iterative operations. Finally, the root algorithm is used to estimate the DOA. The performance of the proposed algorithm is demonstrated by simulation results. © 2018, Electromagnetics Academy. All rights reserved.
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页码：81 / 88
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