STFT Feature Extraction

[KOP_MJ]

Hi,

I would like to acquire features from STFT for the further classification task.

I already tried with PSD as shown below...but I was not getting good results with that.

Here I was calculating the energy of the signal in that particular band by summation of  frequency bins and trying to find out which band has more energy.

Similar thing I want to get it from STFT so that it could lead to improvement in results of classification

Could you please suggest me, how to get features from STFT for Classification task.

[ARAO]

Hi KOP_MJ,

I donot understand what you are trying to do here, could you please elaborate on what you intend to acheive.

What is STFT, what is the PSD functionality you have implemented here?

By the looks of it, there must be a built in function , already present to help you out, and also better practices of LabVIEW programming that you can use.

Cheers,

RAO

[KOP_MJ]

Hi Rao,

Here, I tried calculating each band energy in different bands of EEG signal according to the "df" value of the Power spectrum and finding out the band with max energy.

Similarly, I want to calculate the STFT band energies of EEG signals to find out which band is having high magnitudes.

I am not getting any idea to implement it. Could please suggest something?