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论文:2013,Vol:31,Issue(6):997-1001 |
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引用本文： |
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刘宁, 史浩山, 郭淑霞, 杨博. 基于虚拟阵列的ESPRIT相干信号DOA估计[J]. 西北工业大学 |
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Liu Ning, Shi Haoshan, Guo Shuxia, Yang Bo. DOA Estimation of ESPRIT for Coherent Signal Based on Virtual Array[J]. Northwestern polytechnical university |
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| 基于虚拟阵列的ESPRIT相干信号DOA估计 |
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| 刘宁1,2, 史浩山2, 郭淑霞1, 杨博1 |
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1. 西北工业大学 无人机特种技术重点实验室;
2. 西北工业大学 电子信息学院, 陕西 西安 710072 |
| 摘要: |
| 提出一种基于虚拟阵列的相干信源DOA估计方法。利用接收数据及其共轭信息,重新构造子阵数据矩阵,在不损失有效工作阵元情况下采用运算量小的修正C-ESPRIT方法实现非圆信号在任意初始相位下的相干信号估计。仿真结果表明,VC-ESPRIT算法有效地消除信号初始相位对相干信号C-ESPRIT算法的影响,并且在低信噪比下性能明显优于前后向空间平滑ESPRIT。 |
| 关键词:
运算法则
仿真计算
DOA
估计
数学模型
矩阵运算
均方根误差
蒙特卡洛
天线阵列
SNR
ESPRIT
修正
空间平滑
虚拟阵列
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| DOA Estimation of ESPRIT for Coherent Signal Based on Virtual Array |
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| Liu Ning1,2, Shi Haoshan2, Guo Shuxia1, Yang Bo1 |
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1. Science and Technology on UAV Laboratory, Northwestern Polytechnical University, Xi'an 710065, China;
2. Department of Electronics Engineering, Northwestern Polytechnical University, Xi'an 710072 |
| Abstract: |
| A method of DOA estimation based on virtual array is presented in the presence of coherent signals.U-sing the received dates and its conjugate information, we reconstructed array data matrix.Using the modified C-ES-PRIT, which has small amount of calculation, we estimated the non-circular coherent signal of arbitrary phase with-out array aperture reduction and effective element loss.The simulation results and their analysis show preliminarily that VC-ESPRIT eliminates the limitation of coherent source DOA estimation for C-ESPRIT algorithm and that its performance is better than forward-backward spatial smoothing ESPRIT. |
| Key words:
algorithms
computer simulation
direction of arrival
estimation
mathematical models
matrix algebra
mean square error
Monte Carlo methods
sensor arrays
signal to noise ratio;
ESPRIT
modified
spatial smoothing
virtual-array
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| 收稿日期: 2013-03-19
修回日期:
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| DOI: |
| 基金项目: 教育部博士点基金(20050699037);航天支撑基金资助 |
| 通讯作者:
Email： |
| 作者简介: 刘宁(1976-),女,西北工业大学工程师、博士研究生,主要从事通信工程与信号处理、数据链仿真和电磁兼容环境适应性技术研究。
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| 相关功能 |
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| 作者相关文章 |
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| 刘宁 在本刊中的所有文章 |
| 史浩山 在本刊中的所有文章 |
| 郭淑霞 在本刊中的所有文章 |
| 杨博 在本刊中的所有文章 |
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参考文献: |
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[1] Nizar T, Hyuck M K. Conjugate ESPRIT (C-SPRIT). IEEE Trans on Antennas and Propagation, 2004, 52(10): 2618-2624
[2] Zhu Shengqi, Liao Guisheng, Zhou Zhangguang. Direction-of-Arrival Estimation Method of Coherent Signals Based on Data Matrix Reconstruction for Conjugate ESPRIT(C-SPRIT). Acta Electronica Sinica, 2009, 37(12): 2838-2844
[3] Delmas Jeanpierre. Comments on “Conjugate ESPRIT (C-SPRIT) ”. IEEE Trans on Antennas and Propagation, 2007, 55 (2): 511
[4] Xie Xin, Li Guolin, Liu Huawen. DOA Estimation of Coherent Signals Using One Snapshot. Journal of Electronics & Information Technology, 2010, 32(3): 604-608
[5] Liu Zhigang, Wang Jinkun, Wang Fuli. Virtual Spatial Smoothing Algorithm. Acta Electronica Sinica, 2007, 35(9): 1762-1765
[6] Xu Yougen, Liu Zhiwen. Modified Virtual Spatial Smoothing Algorithm. Acta Electronica Sinica, 2009, 37(12): 2646-2650
[7] Nizar Tayem, Mort Naraghipour. A Unitary Music-Like Algorithm for Coherent Sources. IEEE Vehicular Technology Conference,2007, 551-555
[8] Shan Z L, Yum T S. A Conjugate Augmented Approach to Direction-of-Arrival Estimation. IEEE Trans on Signal Processing,2005, 43(11): 349-353
[9] Abeida H, Delmas J P. Music-Like Estimation of Direction of Arrival for Noncircular Sources. IEEE Trans on signal Processing,2006, 54(7): 2678-2690 |
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