| 一种波达方向和幅相误差联合估计的改进方法 |
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| 引用本文： | 马仑,茹锋.一种波达方向和幅相误差联合估计的改进方法[J].现代电子技术,2011,34(20):99-102. |
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| 作者姓名： | 马仑 茹锋 |
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| 作者单位： | 长安大学 信息工程学院,陕西西安,710064 |
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| 基金项目： | 中央高校基本科研业务费专项基金资助项目(CHD2010JC078) |
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| 摘 要： | 阵列幅相误差的存在将大大影响波达方向的估计精度,反之在波达方向未知的情况下,幅相误差同样无法精确估计,两者相互耦合。在详细分析两者耦合情况的基础上,从工程应用角度出发,给出了一种改进的幅相误差校正方法。该方法能够在波达方向未知的条件下,精确估计阵列幅相误差,同时给出波达方向。由于仅需一次迭代,该方法的计算量较少,更易实现。仿真数据的处理结果证明了该方法的可行性。
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| 关 键 词： | 波达方向 幅相误差 阵列信号处理 特征值分解 |
Improved method of estimation of DOA and gain-phase errors |
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| MA Lun,RU Feng.Improved method of estimation of DOA and gain-phase errors[J].Modern Electronic Technique,2011,34(20):99-102. |
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| Authors: | MA Lun RU Feng |
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| Affiliation: | MA Lun,RU Feng(School of Information Engineering,Chang'an University,Xi'an 710064,China) |
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| Abstract: | The problem of estimating both gain-phase errors and DOA simultaneously is studied.The coupling of DOA and the gain-phase errors of the array degrades the precision of the estimation greatly.By analyzing the coupling,a method that estimates the gain-phase errors of the array is presented.Both of the DOA and gain-phase errors can be estimated accurately with only one iteration,so that the presented method is of less computational complexity and easy to implement.The processing results of simulated data show ... |
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| Keywords: | direction of arrival(DOA) gain-phase error array signal processing eigen-decomposition |
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