to compute power spectral desnity

how do we compute the power spectral density and power of a multidimensional array?

Answer 1

[Abhishek Ballaney]

https://in.mathworks.com/help/signal/ug/power-spectral-density-estimates-using-fft.html

https://in.mathworks.com/help/signal/ref/dspdata.psd.html

https://in.mathworks.com/help/signal/ref/pwelch.html