.Modelica_Requirements.Examples.Elementary.ChecksInFixedWindow_withFFT.WithinRelativeDomain2 .Modelica_Requirements.Examples.Elementary.ChecksInFixedWindow_withFFT.WithinRelativeDomain2Using check block WithinRelativeDomain as
The amplitutes of the FFT are dynamically displayed in the icon of the block (in black), as well as the maximume amplitudes maxAmplitude (in red). The computed amplitude of the base frequency is shown in green (so this amplitude is 100 %). At the end of the simulation, one of the amplitudes is larger as allowed:
Simulating this examples results in
 |
|
| simulation result |
As can be seen, the first FFT fulfills the check (scaledDistance = 0), whereas the second FFT has amplitudes that are larger as allowed (scaledDistance = -0.1).
| Date | Description |
|---|---|
| Nov. 29, 2015 |
Initial version implemented by
Martin R. Kuhn and Martin Otter
(DLR Institute of System Dynamics and Control) The research leading to these results has received funding from the European Union’s Seventh Framework Programme (FP7/2007-2016) for the Clean Sky Joint Technology Initiative under grant agreement no. CSJU-GAM-SGO-2008-001. |
