| 非圆信号方位、俯仰及初相联合估计 |
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| 引用本文： | 刘剑, 黄知涛, 周一宇. 非圆信号方位、俯仰及初相联合估计[J]. 电子与信息学报, 2008, 30(7): 1666-1670. doi: 10.3724/SP.J.1146.2006.01872 |
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| 作者姓名： | 刘剑 黄知涛 周一宇 |
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| 作者单位： | 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;国防科技大学电子科学与工程学院,长沙,410073 |
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| 摘 要： | 该文利用双平行线阵的阵列结构,提出了用于非圆信号二维方向和初相联合估计的扩展MUSIC(EN-MUSIC)算法。EN-MUSIC算法估计得到的方位角、俯仰角与初相一一对应,自动配对,其可测向信号数大于子阵阵元数,方位及俯仰测角精度与非圆信号二维测向酉ESPRIT(2D-NC-UESPRIT)算法大致相当,优于波达方向矩阵法(DOAM)。
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| 关 键 词： | 阵列信号处理 二维测向 非圆信号 MUSIC |
| 收稿时间： | 2006-11-27 |
| 修稿时间： | 2007-05-25 |
Joint 2-D Angle and Noncircularity Phase Estimation |
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| Liu Jian, Huang Zhi-tao, Zhou Yi-yu. Joint 2-D Angle and Noncircularity Phase Estimation[J]. Journal of Electronics & Information Technology, 2008, 30(7): 1666-1670. doi: 10.3724/SP.J.1146.2006.01872 |
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| Authors: | Liu Jian Huang Zhi-tao Zhou Yi-yu |
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| Affiliation: | School of Electronic Science and Engineering, National University of Defense Technology, Changsha 410073, China;Telecommunication Engineering College, Airforce Engineering University, Xi’an 710077, China |
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| Abstract: | A novel joint 2-D angle and noncircularity phase estimation for noncircular signals using dual parallel linear subarrays called extended NC-MUSIC (EN-MUSIC) algorithm is presented. The azimuth, the elevation and the noncircularity phases estimated by EN-MUSIC are paired automatically. The resolvable number of sources for EN-MUSIC can be larger than the number of sensors of each subarray. The estimation precision of 2-D angles by EN-MUSIC algorithm is approximately equal to two dimensional unitary ESPRIT for noncircular signals (2D-NC-UESPRIT), and is better than the DOA Matrix (DOAM) algorithm. |
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| Keywords: | Array signal processing 2-D direction finding Noncircular signals MUSIC |
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