Dear Muhammad,

i suggest you to use the continuous wavelet transform included in time frequency toolbox:

http://tftb.nongnu.org/

best regards,

Actually I know basics of wavelet. I am not getting how to do this all using matlab wavelet tools.

I have data of power system.

Dear Aparna,

Data will be having values of some parameter against the time. Find the excel file attached here. Its containing values of voltage at the input of a load against the time. Its some random data but my real time data will be of almost same type.

Can you please plot its wavelet transform to show the harmonics and inter harmonics present in the system?

Moreover, kindly guide me a little regarding the interpretation of wavelet transform.

Hello,

What kind of problem or error do you have?

In this link https://www.mathworks.com/matlabcentral/fileexchange/20821-continuous-wavelet-transform-and-inverse , there is a wavelet code Matlab.

Regards

Actually the main issue I am facing is to draw wavelet my real time data in excel file. Data is a time series typr. Some system parameter values against time. I have to plot wavelet to find inter harmonics?

Kindly describe the your method for doing this analysis along with the results.

Thanks

Thanks Aparna. Let me go through the code and will let you know after this.