摘要
针对目前矩阵重构类算法在低信噪比、小角度差时分辨能力明显下降,甚至不能分辨的缺陷,论文提出一种新的基于均匀线阵的高分辨稳定DOA估计方法,主要在最大特征向量重构数据阵的方式上做了改进,由于新构矩阵的特殊性能,使其解相干能力、DOA估计精度大大提高。计算机仿真结果证实了该改进算法是有效的。
Aiming of the obviously descending capability of matrix reconstruct in low SNR and small difference of angle, a new array estimation method with high resolution and stability based on uniform linear array is proposed in this paper. This algorithm realizes some improvement in the re-arranged mode of maximum eigenvalue of the correlation matrix. Due to the characteristic of the newly constructed matrix, the capability of estimating concerned signal and the precision of DOA estimation are greatly improved. The simulation results have proved the effectiveness and efficiency of the proposed method.
出处
《信息安全与通信保密》
2009年第8期47-49,共3页
Information Security and Communications Privacy
