How to Export Data from Wavelet Analzer Tool
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Hello Friends,
I used waveletAnalyzer toolbox in Matlab to diagnose the bearing fault vibration signal.
However, I de-composed and de-noised the signal.
I clicked "File" toolbar but it can only export the De-Noised Signal (Ds) the purple graph
In this case, I want to export Detail Coefficient 4 (d4) which is green graph with red circle in the picture below.
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/1138640/image.png)
댓글 수: 1
Santosh Fatale
2022년 10월 4일
Hi Pasu,
Could you please share the sample code and the data required to reproduce the results shared by you in image?
답변 (1개)
Santosh Fatale
2022년 10월 7일
Hi Pasu,
I understand that you want to extract the details coefficients generated by Wavelet Analyzer App. Please go through details below for possible workaround.
- The Wavelet Analyzer app is no longer recommended and will be removed in a future release, see (To be removed) Analyze signals and images using wavelets - MATLAB (mathworks.com).
- If you are interested in denoising the signal, it is recommended to use the Wavelet Signal Denoiser App Visualize and denoise time series data - MATLAB (mathworks.com).
- The Wavelet Analyzer App does not have an option to export the details coefficients from the app.
However, there is a potential workaround as follows:
- Launch the Wavelet Signal Denoiser App and import the desired data. Here's a good example of how to use the App. Denoise a Signal with the Wavelet Signal Denoiser - MATLAB & Simulink (mathworks.com)
- In the App, go to 'Export' -> 'Generate MATLAB Script'.
- Modify the output of the function 'wdenoise' to be '[XDEN,DENOISEDCFS,ORIGCFS]'. The second and third output arguments are coefficients you desire. For more information, you can refer to - Wavelet signal denoising - MATLAB wdenoise (mathworks.com).
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