How can I calculate frequency response model (or transfer function) from the experimental PSD only? if the system is fed by a white noise.

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Muhammad Haydar
Muhammad Haydar 2015-7-22
编辑： Sainath Varikuti 2015-7-24
Hi,
I have to calculate the parametric frequency response model (or the transfer function) from the Power Spectral Density (PSD) provided by a data-sheet. The system is fed by the white noise, whose characteristics are also provided.

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Sainath Varikuti
Sainath Varikuti 2015-7-24
编辑：Sainath Varikuti 2015-7-24
Hello Muhammad,
If Pyx is the output psd and Pxx is the white noise psd then the transfer function is the quotient of Pyx, the cross power spectral density of x and y, and Pxx, the power spectral density of white noise.
Refer to the following documentation page for more information: http://www.mathworks.com/help/signal/ref/tfestimate.html
Regards,
Sainath.

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