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How do I evaluate the power spectra density of QAM signals?

Started by Franc June 5, 2006
My system comprises of a QAM mapping and up-sampling filter, now I need 
to evaluate the PSD of the I/Q data after up-sampling. How do I do that 
in Matlab? 

TIA. 




Franc wrote:
> My system comprises of a QAM mapping and up-sampling filter, now I need > to evaluate the PSD of the I/Q data after up-sampling. How do I do that > in Matlab? > > TIA.
You can refer to this link: http://www.mathworks.com/support/tech-notes/1700/1702.html?BB=1