重庆邮电大学学报（自然科学版）2018，Vol.30Issue(3)：367-374,8.DOI:10.3979/j.issn.1673-825X.2018.03.011
双L型阵列的二维DOA估计方法
Estimation method of direction-of-arrival for two L-shaped uniform linear arrays
摘要
Abstract
An estimation method based on extended propagator method for the problem of two-dimensional ( 2-D) direction-of-arrival ( DOA) estimation of two L-shaped uniform linear arrays is proposed in this paper. Firstly, this method divides the two L-shaped arrays into two independent L-shaped arrays virtually by taking advantage of the structure feature and rear-ranges the array output data for each of the L shaped array. Then, according to the rotational invariance property of uniform linear arrays, four rotation matrices which contain angle information can be obtained by using extended propagator method twice. Finally, on the basis of the property of permutation matrix, the corresponding angles of rotation matrices can be matched by using the minimum norm method. This method does not require spectrum peak searching and has low computa-tional complexity. Computer simulation experiment results show that compared with certain existing methods in the litera-ture, this method has smaller estimation error and better angle estimation performance. Also, under different signal-to-noise ratio and different angle combinations, it has good performance, with certain practical value. Simulation demonstrates the effectiveness and superiority of the proposed method.关键词
二维到达角估计/双L型阵列/传播算子/角度配对Key words
two dimensional direction-of-arrival estimation/two L-shaped arrays/propagator method/pair matching分类
信息技术与安全科学引用本文复制引用
杨晋生,柳建飞,陈为刚..双L型阵列的二维DOA估计方法[J].重庆邮电大学学报（自然科学版）,2018,30(3):367-374,8.基金项目
天津市科技兴海项目( KJXH2011-2) The Tianjin Marine Science and Technology Pro-ject( KJXH2011-2) （ KJXH2011-2）
