Feature Extraction using MATLAB

Hello Team,

Could you please let me know what features using matlab can i use to extract from the below 2 signals by which i can distinguish between both of them.

Answer 1

[Jyotish Kumar]

Hi,

You can calculate power, entropy, and energy as features for these signals. Other than that, you can aslo try calculating slope, standard deviation and negative slope.

[Ashwini Amin]

Thanks Jyotish !

I tried calculating power, entropy, STD, Variance , Mean and energy but these 2 signals couldn't be differentiated by these features.

Could you please let me know the formula to calculate the Slope using MATLAB.

[Jyotish Kumar]

Hi,

go through this link to find slope. You can also calculate phase in order to distinguish these two signals.

[Kiran C]

Hi sir, Could you please tell, how to perform feature extraction to extract various types of entropy using Empirical decomposition method. Thanks in advance.