| 矢量阵自初始化MUSIC算法的试验研究 |
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| 引用本文： | 张揽月,杨德森.矢量阵自初始化MUSIC算法的试验研究[J].哈尔滨工程大学学报,2008,29(11). |
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| 作者姓名： | 张揽月 杨德森 |
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| 作者单位： | 哈尔滨工程大学,水声工程学院,黑龙江,哈尔滨,150001 |
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| 基金项目： | 国家自然科学基金
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水声技术国防科技重点实验室基金
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| 摘 要： | 利用单个矢量阵元的阵簇估计提供的初始参数,对MUSIC噪声子空间谱进行迭代搜索谱峰,实现目标的方位估计.该方法减少了运算量,同时提高了目标方位估计的精度.为了检验算法的性能,进行了外场试验.利用3个矢量水听器组成了三元矢量阵,对比了矢量阵自初始化MUSIC算法和MUSIC空间谱估计以及常规波束形成的性能.试验结果表明,矢量阵常规波束形成的目标方位估计精度较差,MUSIC空间谱的估计性能较好,而迭代搜索MUSIC谱峰方法的定向精度最高.当空间严重降采样时,常规波束图的栅瓣高度接近主瓣高度,MUSIC空间谱表现出较强的栅瓣抑制能力,而自初始化MUSIC算法不受空间降采样的影响,总能给出正确的目标方位估计值.
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| 关 键 词： | 矢量水听器阵 MUSIC空间谱 方位估计 |
Experimental research on a self-initiating MUSIC algorithm for direction finding using a vector-hydrophone array |
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| ZHANG Lan-yue,YANG De-sen.Experimental research on a self-initiating MUSIC algorithm for direction finding using a vector-hydrophone array[J].Journal of Harbin Engineering University,2008,29(11). |
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| Authors: | ZHANG Lan-yue YANG De-sen |
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| Affiliation: | ZHANG Lan-yue,YANG De-sen(College of Underwater Acoustic Engineering,Harbin Engineering University,Harbin 150001,China) |
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| Abstract: | Higher precision direction of arrival(DOA) estimation can be obtained by iteratively searching the maximum of the MUSIC spatial spectrum using initial parameters obtained by array manifold estimation with a single vector hydrophone.A linear array was created using three vector hydrophones.A lake trial was carried out to test the validity and practicability of the self-initiating MUSIC algorithm.Experimental results showed that DOA estimation performance using conventional beamforming was worse,and estimatio... |
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| Keywords: | vector-hydrophone array MUSIC spatial spectrum direction of arrival estimation |
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