文件名称:
An Introduction to Wavelets
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文件大小: 338kb
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上传时间: 2009-09-13
详细说明： An Introduction to Wavelets IEEE Wavelets are mathematical functions that cut up data into di erent frequency components, and then study each component with a resolution matched to its scale. They have advantages over traditional Fourier methods in analyzing phy sical situations where the signal contains discontinuities and sharp spikes. Wavelets were developed independently in the elds of mathematics, quantum physics, electrical engineering, and seismic geology. Interchanges between these elds during the last ten years have led to many new wavelet applications such as image compression, turbulence, human vision, radar, and earthquake prediction. This paper introduces wavelets to the interested technical person outside of the digital signal processing eld. I describe the history of wavelets beginning with Fourier, compare wavelet transforms with Fourier transforms, state properties and other special aspects of wavelets, and nish with some interesting applications such as image compression, musical tones, and de-noising noisy data. ...展开收缩
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