| 一种改进的Volterra自适应噪声对消器 |
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| 引用本文： | 张秀梅,赵知劲,尚俊娜.一种改进的Volterra自适应噪声对消器[J].电声技术,2010,34(2):77-81. |
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| 作者姓名： | 张秀梅 赵知劲 尚俊娜 |
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| 作者单位： | 1. 杭州电子科技大学,通信工程学院,浙江,杭州,310018
2. 杭州电子科技大学,通信工程学院,浙江,杭州,310018;中国电子集团第36研究所,通信系统信息控制技术国家级重点实验室,浙江,嘉兴,314001 |
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| 基金项目： | 国家自然科学基金(60872092) |
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| 摘 要： | 针对随着Voherra滤波器的输入维数或记忆单元增大，相应需要的计算复杂性成幂级数快速增加的问题，提出了一种改进的利用sigmoid函数对背景噪声进行预处理的减少参数Voherra自适应滤波器，并用它构造了非线性自适应噪声对消器。仿真结果表明，算法在高斯噪声和α稳定分布噪声环境下都有优越的抗噪性能。
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| 关 键 词： | Voherra滤波器 sigmoid函数 减少参数 噪声对消 |
A Volterra Adaptive Active Noise Cancellation Filter Based on Reducing Coefficients |
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| ZHANG Xiu-mei,ZHAO Zhi-jin,SHANG Jun-n.A Volterra Adaptive Active Noise Cancellation Filter Based on Reducing Coefficients[J].Audio Engineering,2010,34(2):77-81. |
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| Authors: | ZHANG Xiu-mei ZHAO Zhi-jin SHANG Jun-n |
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| Affiliation: | 1. Telecommunication School;Hangzhou Dianzi University;Hangzhou 310018;China;2. State Key Lab of Information Control Technology in Communication System;No.36 Research Institute;China Electronic Technology Corporation;Jiaxing Zhejiang 314001;China |
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| Abstract: | As the order or the memory length of Voherra series enlarges, the computational complexity is required like power series. Using sigmoid function to pre-process environment noises, a modified Voherra adaptive algorithm based on reducing coefficients is introduced. It is applied for nonlinear active noise cancellation. Computer simulation results illustrate that the proposed algorithm has good performance in Gaussian noise or a-stable noise evironment. |
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| Keywords: | Volterra filtering sigmoid function reducing coefficients noise cancelling |
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