ICA-based direction-of-arrival estimation of uncorrelated and coherent signals with uniform linear array

被引：7
|
作者：
Ma, Guang-wei [1 ]
Sha, Zhi-chao [1 ]
Liu, Zhang-meng [1 ]
Huang, Zhi-Tao [1 ]
机构：
[1] Natl Univ Def Technol, Coll Elect Sci & Engn, Changsha 410073, Hunan, Peoples R China
来源：
SIGNAL IMAGE AND VIDEO PROCESSING | 2014年 / 8卷 / 03期
基金：
中国国家自然科学基金;
关键词：
Independent component analysis (ICA); Direction-of-arrival (DOA); The mixing matrix; Parameter equation;
D O I：
10.1007/s11760-013-0553-z
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：
A novel approach for direction-of-arrival (DOA) estimation of uncorrelated and coherent signals with uniform linear array is proposed in this paper. First, the mixing matrix, which contains all azimuth information of signal sources, is estimated by independent component analysis. Afterward, several parameter equations are established upon the new mixing matrix. Finally, all DOAs of coherent and uncorrelated signals are estimated by solving these equations. Compared with traditional methods, the proposed method has higher angle resolution and estimation accuracy. Moreover, the signal number resolved by our approach can exceed the number of array elements. Simulation results have demonstrated the efficiency of the proposed method.
引用
收藏
页码：543 / 548
页数：6
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