An improved MMUSIC algorithm of direction of arrival estimation

被引：2
|
作者：
Li, Bo [1 ]
机构：
[1] Liaoning Univ Technol, Elect & Informat Engn Coll, Jinzhou, Peoples R China
来源：
INTERNATIONAL JOURNAL OF COMMUNICATION SYSTEMS | 2013年 / 26卷 / 07期
关键词：
DOA; estimation; resolution; computational complexity; MMUSIC algorithm; SYSTEMS;
D O I：
10.1002/dac.1372
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
An improved algorithm is presented for a signal's direction of arrival estimation to reduce the computational complexity of the existing modified multiple signal classification (MMUSIC) algorithm. In this paper, FFT algorithm is introduced to narrow the searching range of the direction angle. Afterwards, a compromise approach-based SVD and orthogonal-triangular decomposition takes the place of traditional double SVDs. Then, during matrix calculation, the noise subspace is achieved for the signal's direction of arrival. Finally, the system simulation demonstrates the efficiency and reliability of this novel MMUSIC algorithm. Compared with the existing algorithm, MMUSIC effectively saves the computational complexity with the approximation estimation performance. Copyright (c) 2011 John Wiley & Sons, Ltd.
引用
收藏
页码：853 / 862
页数：10
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