- It stores buffer of output and input points then plots the power spectral density.
- You may define number of points to be used for calculating fft.
- You may define how often you want to plot the fft
- Fourth parameter is the sampling time.
How to use Power Spectral density block in Simulink?
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Hello there,
I would like to plot a PSD of a signal that's generated in Simulink, and for this purpose, I thought of using the "Power Spectral Density " block that's avaible in the "Additional Sinks" of the Simulink Library. But, I am unable to understand the definitions of the block paramters. My Signal has a lenght of 1000001 data points with a time resolution (Δt) of 7.32e-07. So, kindly help me understand what these parameters mean.
Thanks and regards
Vineeth R
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Priyanshu Mishra
2020-4-28
Hi Vineeth,
Power Spectral Density block displays the frequency content of the buffer in graph window. The block calculates the power spectral analysis using ffts.
A similar question is also asked in the community earlier. You may refer the following link for further explanation.
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