Convolution¶
Convolution applies either an impulse response or a frequency response function (FRF) to one time-series signal and outputs the corresponding response time history.
Input and output¶
The first input changes with Input Type:
| Input Type | First input | Second input | Output |
|---|---|---|---|
FRF + Time Domain |
FRF histogram | one time-series signal | response time history and derived impulse response |
Time Domain + Time Domain |
time-series kernel / impulse response | one time-series signal | response time history |
The signal input must contain exactly one channel with a positive sampling interval. In FRF mode, the histogram must be an FRF generated by Spectrum Generator and use either real/imaginary or magnitude/phase representation.
Main parameters¶
Input Type: selects FRF or time-domain kernel processing and updates the first input port.Method:Auto,Time Domain Convolution, orFFT Convolution.
Usage notes¶
- The response length is kept the same as the signal input length.
- In FRF mode, connect the FRF output of
Spectrum Generatorand a uniformly sampled excitation time series. The module also provides the impulse response derived from the FRF for inspection. - Confirm input and response units before interpreting the result; the output unit follows the response unit carried by the FRF where available.