The class should be able to perform frequency sweeps over fluctuating density fields.

[asztalosors]

This function is designed to perform a full sweep over a time-evolved density data.:

• Cycle over various 2D density fields from a 3D denisty-time series.
• For each 2D density field, perform a frequency scan.
• Return two 2D data arrays, one containing the amplitude response over the time series for each probing frequency and one returning similar data for the phase information.