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英语翻译摘要:本文主要阐述了如何消除实际信号中的噪声,从混有噪声的信号中提取有用信息,以及与傅里叶变换进行消除噪声的比较,从而知道了小波变换是一种信号的时频分析,他具有多分

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英语翻译
摘要:本文主要阐述了如何消除实际信号中的噪声,从混有噪声的信号中提取有用信息,以及与傅里叶变换进行消除噪声的比较,从而知道了小波变换是一种信号的时频分析,他具有多分辨率的特点,可以更方便地从混有强噪声的信号中提取原始信号,被誉为分析信号的显微镜.最后利用Matlab软件在计算机上实现了信号的噪声消除.
关键词:小波变换,傅里叶变换,Matlab,噪声信号,原始信号,阈值.
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Abstract:This text how noise to dispel actual signal does it explain mainly,draw useful information in signal to mix with the noise,and vary comparison which dispel the noise with Fourier,thus known it is analyzed frequently when a kind of signal that the small wave is varied,he has the characteristics of many resolution ratios,can draw the primitive signal from mixing with the signal of the strong noise more conveniently,praised as the microscope which analyzes the signal.Utilize Matlab software to realize on the computer the noise of the signal is dispelled finally.
Keyword:The small wave is varied,Fourier varies,Matlab,noise signal,primitive signal,threshold value.