I'm trying to denoise the signal by performing PSD analysis and followed by IFFT. Ultimately, I want to generate Force and Displacement plots from the denoised acceleration signal.
Noisy Acceleration Signal($a_z$ vs t):
PSD analysis of the signal:
Setting a PSD > 0.001 in the code to filter out frequencies having less power than 0.001.
After IFFT($a_z$ vs t):
The denoised signal makes sense since I'm recording z-acceleration on curb impacts which comes out to be a series of impulses.
I'm a novice in signal processing and I don't know whether a windowing would have given a better result or not?
Further questions: Is it possible to find force distribution from the acceleration signal? I've been searching to find answers but none have given me a good idea.