2D-DOA and frequency estimation for L-shaped array via reduced-dimensional MUSIC

被引：2
|
作者：
Xu L. [1 ]
Wu R. [2 ]
Zhang X. [1 ]
机构：
[1] College of Electronic and Information Engineering, Nanjing University of Aeronautics & Astronautics, Nanjing
[2] Information Engineering Department, Wenjing College, Yantai University, Yantai
来源：
Xi Tong Gong Cheng Yu Dian Zi Ji Shu/Systems Engineering and Electronics | 2019年 / 41卷 / 01期
关键词：
Direction of arrival(DOA); Frequency; L-shaped array; Reduced-dimensional multiple signal classification (RD-MUSIC);
D O I：
10.3969/j.issn.1001-506X.2019.01.01
中图分类号：
学科分类号：
摘要：
A reduced-dimensional multiple signal classification (RD-MUSIC) based two dimensional direction of arrival (2D-DOA) and frequency estimation algorithm for L-shaped array is proposed. The proposed method utilizes one-dimensional local spectrum-peak search to obtain the estimation of frequency, and the 2D-DOA can be obtained from the parameter matrix generated during the estimation of frequency. Compared with traditional MUSIC algorithm which needs high dimensional global search, the proposed method owns much lower computational complexity with only one-dimensional local searching. Furthermore, it's effective for both uniform and non-uniform L-shaped array and can achieve automatically paired 2D-DOA and frequency estimation. In addition, the angle and frequency estimation performance of the proposed method is close to the traditional MUSIC algorithm and parallel factor method, and outperforms the estimation of signal parameters via rotational invariance techniques algorithm and the propagator method. © 2019, Editorial Office of Systems Engineering and Electronics. All right reserved.
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页码：1 / 8
页数：7
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