# Occupied Bandwidth

I am pretty new in the field of Signal Processing. I am a structural engineering graduate student at the UT at Austin. I am currently working on a project that regards acoustic emission monitoring of a steel-concrete composite bridge.

I am analyzing some Power Density Spectrums that I calculated from the waveforms collected during the experimental program. Now, I am trying to classify some of them basing on Mean Frequency and occupied bandwidth. I have two main questions :