| 低信噪比中MUSIC算法研究 |
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| 引用本文： | 张家平,刘青,张洪顺. 低信噪比中MUSIC算法研究[J]. 通信技术, 2009, 42(1): 87-89 |
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| 作者姓名： | 张家平 刘青 张洪顺 |
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| 作者单位： | 重庆通信学院,重庆,400035 |
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| 摘 要： | MUSIC（Multiple Signal ClaSSification）是一种超分辨率的DOA（Direction of hrrival）估计算法，其分辨率随着天线接收信号的信噪比的增大而增大。在低信噪比条件TMUSIC算法的分辨率快速下降，为解决此问题提出了一种改进的MUSIC算法，使它在低信噪比条件下有较高的分辨率。通过计算机仿真验证了改进后的算法在低信噪比条件下具有很高的分辨率，在信噪比高的条件下其分辨率也大于基本的MUSIC算法。
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| 关 键 词： | 多重信号分类算法 超分辨率 波达方向估计 |
MUSIC Algorithm With Small SNR |
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| ZHANG Jia-ping,LIU Qing,ZHANG Hung-shun. MUSIC Algorithm With Small SNR[J]. Communications Technology, 2009, 42(1): 87-89 |
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| Authors: | ZHANG Jia-ping LIU Qing ZHANG Hung-shun |
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| Affiliation: | (Chongqing Communication Institute, Chongqing 400035, China) |
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| Abstract: | MUSIC algorithm, whose performance of resolution is better with larger SNR, is a super resolution estimation of DOA. With small SNR the resolution of the algorithm falls quickly. A new modified MUSIC algorithm, which has good performance of resolution with small SNR, is discussed. The computer simulation has proved that the modified algorithm with small SNR is of high resolution while with large SNR is of higher resolution than the basic MUSIC algorithm. |
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| Keywords: | multiple signal classification algorithm super resolution direction of arrival estimation |
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