I am trying to implement a way to use sparse filtering or another similiar algorithm to extract features directly from raw vibration signals. I tried the algorithm:
But the results were not great. Maybe because this algortihm doesnt like to take raw signals as input (but wants already features?)
Also I have to mention that I am aware of this method:
But my task is to find a way to exract features more automatic.
Can somebody help me to find the right algorithm to extract features from raw vibration signals?