| 基于盲分离技术的水下多源环形阵定位方法研究 |
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| 引用本文： | 王丛,王海燕,白峻.基于盲分离技术的水下多源环形阵定位方法研究[J].应用声学,2009,28(4):273-277. |
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| 作者姓名： | 王丛 王海燕 白峻 |
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| 作者单位： | 西北工业大学航海学院,西安,710072 |
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| 摘 要： | 根据水下自动探测的工程实际技术发展需求,本文基于盲分离技术研究了环形阵对水下目标辐射噪声信号进行定位的方法,利用水声信号统计特性,通过构建针对水中目标的非线性函数和学习因子等,对自然梯度算法进行了改进,实船信号的盲分离实验结果表明,该方法改进了分离效果。在此基础上,建立了基于线性瞬时混合情况下的定位模型,完成了对六个水中目标的定位研究,取得了令人满意的结果。
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| 关 键 词： | 盲分离 环形阵 水下多源定位 |
Location of multiple-source by annular-array based on blind signal separation |
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| WANG Cong,WANG Hai-yan and BAI Jun.Location of multiple-source by annular-array based on blind signal separation[J].Applied Acoustics,2009,28(4):273-277. |
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| Authors: | WANG Cong WANG Hai-yan and BAI Jun |
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| Institution: | (College of Marine,Northwestern Polytechnical University,Xi’an 710072) |
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| Abstract: | According to the requirement of practice technology in auto-detecting project,we have studied a method of annular-array location of marine signal based on the blind separation, by using the statistical characteristics of marine signal,a nonlinear function and a learn factor of the marine signal are prebuilt improve the Natural Gradient Algorithm.Based on the improve the Natural Gradient Algorithm,we created a model of multiple-source location estimation method further,and the simulation result show the improvement of the blind separation. |
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| Keywords: | Blind signal separation Annular-array Multiple-source location |
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