| 单矢量水听器改进MUSIC算法的噪声抑制性能研究 |
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| 引用本文： | 张炜,;程锦房,;房俊伟.单矢量水听器改进MUSIC算法的噪声抑制性能研究[J].武汉理工大学学报(交通科学与工程版),2014(4):864-868. |
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| 作者姓名： | 张炜 ;程锦房 ;房俊伟 |
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| 作者单位： | [1]海军工程大学兵器工程系,武汉430033; [2]海军装备研究院系统所,北京100161; [3]中国人民解放军91183部队,青岛266044 |
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| 基金项目： | 国家部委基金项目资助（批准号：4010709010201） |
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| 摘 要： | 针对MUSIC算法在相干噪声背景下估计目标方位性能下降的问题,利用酉变换的空时相关矩阵（unitary spatio-temporal correlation matrice—USTCM）,替代MUSIC算法中的数据协方差矩阵,设计了单矢量水听器的USTC-MUSIC算法,通过仿真验证了新方法不论噪声是不相干或相干,其噪声抑制能力和目标分辨能力均优于原方法.
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| 关 键 词： | 空时相关矩阵 单矢量水听器 相干噪声 目标分辨 |
Research on Noise Suppression of Modified MUSIC Algorithm in Single Vector-hydrophone |
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| Institution: | ZHANG Wei , CHENG Jinfang , FANG Junwei (1.Dept. of Weaponry Engineering Naval University of Engineering, Wuhan 430033,China ;2.Dept. of Weaponry system Naval Academy of Armament, Beijing 100161 ,China;3.91183 Troops, Qingdao 266044,China) |
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| Abstract: | In order to solve the problems that target azimuth estimate performance of MUSIC algorithm in the background of coherent noise is degradation.We use unitary spatio-temporal correlation matrice which improve the estimation performance of MUSIC algorithm,instead of the correlation matrix in the MUSIC algorithm,and designed a single vector hydrophone USTC-MUSIC algorithm.New method in the noise suppression and objective distinguishing capability superior than the original method is verified by simulation,whether the noise is irrelevant or coherent. |
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| Keywords: | spatio-temporal correlation matrice single vector hydrophone coherent noise objective distinguish |
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