1-dimensional DCST.zip
This archive contains:
1) dcst.m: this function computes the discrete cosine Stockwell coefficients of a given 1-dimensional signal;
2) idcst.m: this function reconstruct the original signal from its discrete cosine Stockwell coefficients;
3) rearrange_dcst.m: this function helps in visualizing the discrete cosine Stockwell coefficients in the classical time-frequency plane;
4) dcst_tutorial.m: it provides an example on how to use the S-transform to analyze a signal.
The DCST and IDCST are FFT-FAST (O(NlogN)).
The DCST is, roughly speaking, the DOST in which the FFT is substituted with the DCT.
More comments on the S-transform, references and a detailed description of the algorithms used are given as comments in the m-files.
DCST and IDCST are based on DOST and IDOST from the same authors.
引用格式
Luigi Riba (2024). 1-dimensional DCST.zip (https://www.mathworks.com/matlabcentral/fileexchange/47224-1-dimensional-dcst-zip), MATLAB Central File Exchange. 检索来源 .
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- Signal Processing > Signal Processing Toolbox > Transforms, Correlation, and Modeling > Transforms > Discrete Fourier and Cosine Transforms >
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版本 | 已发布 | 发行说明 | |
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1.0.0.0 |