QIU Tianshuang   

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Paper Publications

α稳定分布的水声信号处理新方法

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Indexed by:Journal Article

Date of Publication:2005-08-20

Journal:电子与信息学报

Included Journals:Scopus、ISTIC、PKU

Volume:27

Issue:8

Page Number:1201-1204

ISSN:1009-5896

Key Words:分数低阶统计量;α稳定分布;舰船辐射噪声;水声信号;检测

Abstract:本文依据分数低阶统计信号处理理论和舰船辐射噪声信号特性,提出了水声信号新的噪声模型,分析了常规LMS滤波方法在非高斯α稳定分布噪声下性能退化的原因,提出了基于分数低阶p-范数的LMP,NLMP水声信号自适应降噪滤波方法,并分析了参数p值的选取对LMP滤波效果的影响.理论分析和计算机仿真结果表明这种方法在高斯和非高斯α稳定分布条件下都具有良好的鲁棒性.

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