舰船电子工程2025，Vol.45Issue(1)：182-185,190,5.DOI:10.3969/j.issn.1672-9730.2025.01.036
小波变换阈值函数去噪研究
Research on the Wavelet Transform Threshold Function Denoising
摘要
Abstract
Wavelet transform is a common analysis method used in the signal processing,which is widely used in many research fields.Different application fields have different requirements for wavelet function.In this manuscript the wavelet transform is mainly used in the underwater acoustic signal process.Targeting the characteristics of the underwater acoustics signals a new threshold and a new threshold function are designed.Several different wavelet basis functions and the wavelet decomposition level on the effect of signal denoising are investigated.At last,the different dbN serial wavelet functions on the effect of signal denoising are compared.The results show when the level of wavelet decomposition is four and the dbN serial wavelet function is db4 the signal denoising effect is best.关键词
小波变换/阈值/阈值函数/小波基函数Key words
wavelet transform/threshold/threshold function/wavelet basis function分类
通用工业技术引用本文复制引用
代伟..小波变换阈值函数去噪研究[J].舰船电子工程,2025,45(1):182-185,190,5.
