| 一种用于宽带自噪声有源抵消的无延时子带多通道系统 |
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| 引用本文： | 王杰,徐新盛,刘清宇,吴英姿.一种用于宽带自噪声有源抵消的无延时子带多通道系统[J].噪声与振动控制,2004,24(4):5-7,25. |
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| 作者姓名： | 王杰 徐新盛 刘清宇 吴英姿 |
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| 作者单位： | 1. 哈尔滨工程大学,水声工程学院,哈尔滨,150001
2. 海军装备论证中心,北京,100073 |
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| 摘 要： | 降低测量平台处本艇自噪声能够有效地提高被动声纳设备的作用距离.提出了一种用于宽带自噪声有源抵消的无延时子带多通道系统.这种系统与传统的子带结构和算法相比,不但保持了乘加运算量小、收敛速度快的优点,而且在抵消通道没有引入任何时延.计算机仿真和真实海试数据都验证了系统的有效性.
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| 关 键 词： | 声学 自噪声 有源噪声控制 多通道无延时子带系统 多相FFT技术 |
| 文章编号： | 1006-1355(2004)04-0005-03 |
A Delayless Subband Multi-Channel System for Active Broadband Self-Noise Canceling |
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| WANG Jie,XU Xin-sheng,LIU Qing-yu,WU Ying-zi.A Delayless Subband Multi-Channel System for Active Broadband Self-Noise Canceling[J].Noise and Vibration Control,2004,24(4):5-7,25. |
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| Authors: | WANG Jie XU Xin-sheng LIU Qing-yu WU Ying-zi |
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| Abstract: | Reducing the self-noise of submarines can increase passive sonar range in the sonar platforms. In this paper, a delayless subband multi-channel system for active broadband self-noise canceling is introduced, which has computational and convergence speed advantages comparable to a conventional subband design but without introducing any delay in the cancellation path. Computer simulations and laboratory work on real self-noise cancellation also validate the analysis results. |
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| Keywords: | acoustics self-noise active noise control Multi-channel delayless subband system polyphase FFT technique |
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