set_fdtsd_excitation()
Description: A function to create an excitation function for use in Frequency Domain Time-Space Decomposition (FDTSD) calculations.
Usage
fn = set_fdtsd_excitation(signal, sample_period, clipping_threshold);
Arguments
- signal A MATLAB vector containing a set of time samples representing the excitation signal in m/s.
- sample_period The duration between points in the excitation signal in s.
- clipping_threshold Optional argument describing the threshold below which frequency components will be ignored. If this value is negative, it will be assumed to be in dB, otherwise any value between zero and one can be used. A value of zero will disable spectral clipping.
Output Parameters
- fn A MATLAB structure containing the specified values.
Notes
Transient calculations can be performed with arbitrary input signals, however performance will be improved if one of the signal types for which an analytical TSD expression has been derived is used. Otherwise, the calculation will be performed using FDTSD. See the documentation for fnm_tsd for details.