| 一种新的共轭增强MUSIC测向算法 |
| |
| 引用本文： | 刘剑,黄知涛,周一宇.一种新的共轭增强MUSIC测向算法[J].宇航学报,2007,28(5):1309-1313. |
| |
| 作者姓名： | 刘剑 黄知涛 周一宇 |
| |
| 作者单位： | 1. 国防科技大学,电子科学与工程学院,长沙,410073;空军工程大学,电讯工程学院,西安,710077
2. 国防科技大学,电子科学与工程学院,长沙,410073 |
| |
| 摘 要： | 提出一种新的测向算法。利用阵列输出的非零时延互相关函数及其共轭形成伪阵列输出,从而得到伪协方差矩阵,对其进行特征分解,利用信号子空间与噪声子空间的正交性,搜索得到的空间谱函数的极大值点对应的角度就是波达方向。仿真实验表明,新算法可对多于阵元数的信号进行测向,其测角精度和分辨力优于MUISC和MUSIC-like算法。
|
| 关 键 词： | 阵列信号处理 测向 阵列扩展 |
| 文章编号： | 1000-1328(2007)05-1309-05 |
| 修稿时间： | 2006年7月25日 |
A New Conjugate Augmented MUSIC Algorithm for DOA Estimation |
| |
| LIU Jian,HUANG Zhi-tao,ZHOU Yi-yu.A New Conjugate Augmented MUSIC Algorithm for DOA Estimation[J].Journal of Astronautics,2007,28(5):1309-1313. |
| |
| Authors: | LIU Jian HUANG Zhi-tao ZHOU Yi-yu |
| |
| Abstract: | In this paper, we present a new direction finding algorithm which uses the conjugate augmented cross-correlation to derive the pseudo data matrix from which the pseudo covariance matrix is constructed. Then the directions of arrivals (DOAs) of the signals are estimated by searching the maxima of the pseudo spatial spectrum. The proposed algorithm can resolve more sources than the number of array sensors. Moreover, simulation results show that its resolution performance is better than MUSIC and MUSIC-like algorithm in small sample case. |
| |
| Keywords: | MUSIC Array signal processing Direction finding MUSIC Aperture extension |
| 本文献已被 维普 万方数据 等数据库收录！ |
|
