DOA estimation for monostatic MIMO radar using polynomial rooting

被引：39
|
作者：
Xie, Rong [1 ]
Liu, Zheng [1 ]
Zhang, Zi-jing [1 ]
机构：
[1] Xidian Univ, Natl Lab Radar Signal Proc, Xian 710071, Peoples R China
来源：
SIGNAL PROCESSING | 2010年 / 90卷 / 12期
基金：
中国国家自然科学基金;
关键词：
MIMO radar; DOA estimation; Reduced-dimensional matrix; Polynomial rooting; ESPRIT;
D O I：
10.1016/j.sigpro.2010.05.008
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 direction of the arrival (DOA) estimation method utilizing polynomial rooting is developed for monostatic MIMO radar. Utilizing the redundancy of the received data, a reduced-dimensional matrix is firstly performed to alleviate the temporal snapshots requirement and the computational burden resulting from the inversion of the covariance matrix. To further alleviate the complexity burden, a polynomial rooting method is proposed to identify the extreme values of Capon spatial spectrum. Since the target DOA lies in the set of all extreme values, DOA estimation method can be performed based only on the candidate angles around those extreme values. Numerical results verify the effectiveness of this method. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码：3284 / 3288
页数：5
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