stockwelltransform
所属分类：matlab编程
开发工具：matlab
文件大小：5KB
下载次数：0
上传日期：2020-07-01 12:30:15
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QYQX1188
说明： 使用matlab通过mex调用C语言程序进行S变换
(Using MATLAB to call C language program through mex for s transformation)
文件列表:
ist.c (1864, 2015-11-24)
make.m (43, 2015-11-24)
st.c (2351, 2015-11-24)
st_src.c (8354, 2015-11-24)
stockwelltransform
==================
Stockwell transform for spectral analysis
This is a Matlab wrapper of the [Stockwell transform](http://en.wikipedia.org/wiki/S_transform).
The core `st_src.c` file is `st.c` from [this](https://bitbucket.org/cleemesser/stockwelltransform/src/a4b1627626c2?at=default) bitbucket repository.
The Matlab wrapper `st.c` is `st_wrapper.c` from the [NIMH MEG](http://kurage.nimh.nih.gov/meglab/Meg/Ctf2st).
I made a small change to avoid shifting the Hilbert transform in frequency when multiplying by the Gaussian window.
Avoiding this shift means the normal Hilbert instaneous phase comes out in the spectrum.
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