hahadawn 发表于 2007-1-27 20:40

关于sliding fourier transform!

请问一下什么是sliding fourier transform算法啊?谢谢~~

shenyongjun 发表于 2007-1-27 23:26

从名称上感觉就是窗口Fourier变换,窗在sliding...

gghhjj 发表于 2007-2-1 18:23

滑动傅立叶变换

gghhjj 发表于 2007-2-1 18:24

The sliding Fourier transform is widely used for extracting time-dependent spectra from time series and has localization properties similar to those of the wavelet transformations. It is described here to provide a contrast to the wavelet transforms. To create a sliding Fourier transform, a time series is cut into a series of smaller series, which are then individually Fourier transformed. This windowing creates a transformation that is localized in time.

以上摘自:http://sepwww.stanford.edu/public/docs/sep75/ray2/paper_html/node3.html
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