| 基于自适应逆滤波器的盲卷积信号恢复 |
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| 引用本文： | 张之猛,刘伯胜,刘晨晨,田宝晶.基于自适应逆滤波器的盲卷积信号恢复[J].计算机仿真,2008,25(1):336-339. |
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| 作者姓名： | 张之猛 刘伯胜 刘晨晨 田宝晶 |
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| 作者单位： | 1. 哈尔滨工程大学水声工程学院,黑龙江哈尔滨,150001
2. 石家庄铁道学院,河北石家庄,050043 |
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| 摘 要： | 根据水声信号在实际环境下传播存在多途效应而造成反射信号之间产生时延差异的特点,研究了一种基于盲解卷积的水声平稳信道参数估计及声源分离的算法.针对实际的水声信道参数特点,提出了改进的自适应逆滤波器用于源信号的恢复.信道参数的估计是通过引入零均值、方差已知的参考信号,利用时空解相关技术实现的.最后通过仿真分析了时延和信噪比对于自适应滤波器最小均方误差的影响,并给出了源信号的恢复结果,验证了该方法的有效性.
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| 关 键 词： | 多途传播 盲解卷积 自适应逆滤波 去相关 |
| 文章编号： | 1006-9348（2008）01-0336-04 |
| 收稿时间： | 2007-01-07 |
| 修稿时间： | 2007-03-20 |
Signal Restoration of Blind Deconvolution Based on Adaptive Inverse Filter |
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| ZHANG Zhi-meng,LIU Bo-sheng,LIU Chen-chen,TIAN Bao-jing.Signal Restoration of Blind Deconvolution Based on Adaptive Inverse Filter[J].Computer Simulation,2008,25(1):336-339. |
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| Authors: | ZHANG Zhi-meng LIU Bo-sheng LIU Chen-chen TIAN Bao-jing |
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| Affiliation: | ZHANG Zhi-meng LIU Bo-sheng TIAN Bao-jing College of Underwater Acoustic Engineering,Harbin Engineering University,Harbin Heilongjiantg 150001,China LIU Chen-chen Shijiazhuang Railway Institute,Shijiazhuang Heibei 050043,China |
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| Abstract: | A novel method was studied to evaluate stationary channel parameters and restore unknown source sig- nals with consideration of different delayed multi-path reflections in underwater acoustic channel.Analyzing sound propagation characteristics in ocean channel firstly,improved adaptive inverse filter was put forward to to restore sources.Based on FIR-channel model,the reference signals with zero-mean,and known variance were introduced to evaluate the channel characteristics using spatio-temporal decorrelati... |
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| Keywords: | Multi - path propagation Blind deconvolution Adaptive inverse filtering Decorrelation |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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