Reduced-Dimension Noncircular-Capon Algorithm for DOA Estimation of Noncircular Signals

被引：4
|
作者：
Lv, Weihua [1 ,2 ]
Sun, Huapu [1 ]
Zhang, Xiaofei [1 ,3 ]
Xu, Dazhuan [1 ]
机构：
[1] Nanjing Univ Aeronaut & Astronaut, Coll Elect & Informat Engn, Nanjing 210016, Jiangsu, Peoples R China
[2] Luoyang Optoelectro Technol Dev Ctr, Luoyang 471000, Peoples R China
[3] Southeast Univ, Natl Mobile Commun Res Lab, Nanjing 210096, Jiangsu, Peoples R China
来源：
INTERNATIONAL JOURNAL OF ANTENNAS AND PROPAGATION | 2015年 / 2015卷
关键词：
DIRECTION-OF-ARRIVAL; ANGLE ESTIMATION; LOCATION; ARRAYS; NUMBER;
D O I：
10.1155/2015/348636
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：
The problem of the direction of arrival (DOA) estimation for the noncircular (NC) signals, which have been widely used in communications, is investigated. A reduced-dimension NC-Capon algorithm is proposed hereby for the DOA estimation of noncircular signals. The proposed algorithm, which only requires one-dimensional search, can avoid the high computational cost within the two-dimensional NC-Capon algorithm. The angle estimation performance of the proposed algorithm is much better than that of the conventional Capon algorithm and very close to that of the two-dimensional NC-Capon algorithm, which has a much higher complexity than the proposed algorithm. Furthermore, the proposed algorithm can be applied to arbitrary arrays and works well without estimating the noncircular phases. The simulation results verify the effectiveness and improvement of the proposed algorithm.
引用
收藏
页数：9
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