| 信号稀疏分解降噪在DOA估计中的应用 |
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| 引用本文： | 唐玲,宋弘.信号稀疏分解降噪在DOA估计中的应用[J].四川理工学院学报(自然科学版),2010,23(1):98-101. |
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| 作者姓名： | 唐玲 宋弘 |
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| 作者单位： | 四川理工学院自动化与电子信息学院,四川,自贡,643000 |
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| 摘 要： | 提出了一种基于稀疏分解的阵列信号降噪方法。该算法是通过匹配跟踪(MP)的稀疏分解对阵列接收信号进行降噪,然后结合一般的MUSIC算法实现DOA估计。首先将对阵列接收数据分阵元通道独立进行基于MP分解的降噪处理,在不改变阵列流型的前提下,达到了对阵列信号降噪的效果,且在实际算法中分析了MP分解迭代终止阈值的确定。通过仿真分析证实了信号MP分解降噪的方法应用于DOA估计中的可行性。仿真结果显示,在低信噪比环境中,基于MP分解降噪后的MUSIC估计方法取得了更好的估计性能,因此证实了该算法的有效性。
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| 关 键 词： | 阵列信号处理 稀疏分解 波达方向估计 降噪 |
Application of Sparse Decomposition De-noise in DOA Spectrum Estimation |
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| TANG Ling,SONG Hong.Application of Sparse Decomposition De-noise in DOA Spectrum Estimation[J].Journal of Sichuan University of Science & Engineering:Natural Science Editton,2010,23(1):98-101. |
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| Authors: | TANG Ling SONG Hong |
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| Affiliation: | TANG Ling,SONG Hong(School of Automation , Electronic Information,Sichuan University of Science & Engineering,Zigong 643000,China) |
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| Abstract: | An array signal de-noise method based on MP decomposition is proposed in the paper.This algorithm is implemented through the receiver array signal de-noise,and then estimated with the general DOA method such as MUSIC.First by separating the receiving data into the array element channel to achieve MP decomposition de-noise independently,we get the effect of noise signal array with no change in the flow pattern array.And we analyze the determination of termination threshold with MP decomposition iterative.Fin... |
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| Keywords: | array signal processing sparse decomposition DOA estimation de-noise |
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