| 基于自适应噪声抵消的源识别及其相关性研究 |
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| 引用本文： | 江涌,何琳,章林柯.基于自适应噪声抵消的源识别及其相关性研究[J].船海工程,2006,35(2):35-37. |
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| 作者姓名： | 江涌 何琳 章林柯 |
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| 作者单位： | 海军工程大学振动与噪声研究所,武汉,430033 |
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| 摘 要： | 对参考输入相关的ANC的基本原理进行推导,通过仿真,对参考输入的相关性和ANC结果精度的关系进行研究。仿真结果表明:在信号信噪比较高的情况下,典型的是弱宽带噪声背景上叠加强线谱情况,参考信号之间的相关性对ANC抵消结果没有太大的影响,水池试验证实了自适应抵消方法应用于计水下航行器源识别分析的可行性。
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| 关 键 词： | 自适应噪声抵消 噪声源 识别 相关性 |
| 文章编号： | 1671-7953（2006）02-0035-03 |
| 收稿时间： | 2005-09-28 |
| 修稿时间： | 2005-09-282005-11-02 |
Study on the noise sources identification and its correlation based on ANC |
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| Authors: | JIANG Yong HE Lin ZHANG Lin-ke |
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| Institution: | JIANG Yong HE Lin ZHANG Lin-keInstitute of Noise and Vibration Naval University of Engineering Wuhan 430033 |
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| Abstract: | The basic principle of adaptive noise cancellation(ANC) is studied.Based on the simulation of typical signals,the relationship between the analysis result of ANC system and the correlation of reference inputs are examined.The simulation result indicated that under the higher signal noise ratio(SNR) signals,such as the weak broadband noise signal superimposed with strong line spectrum,the result of ANC is weakly affected by the correlation of the reference input signals.The feasibility of employing ANC method to identify the main noise sources of underwater vehicle is validated by the tank experiment. |
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| Keywords: | adaptive noise cancellation noise source identification correlation |
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