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code for PSD calculation in c

Started by jain_nisha61 April 19, 2008
Hi All,

I am in urget requirement of PSD calculation function in c. I am very
new to DSP and i am not sure how to implement the PSD calculation
function in c. I know in Matlab we have whole bunch of functions to do
it using library. I need to implement it in c. Please if some one has
already implemented can pass the code or related information? Also i
need to calculate it for 8,10 and 20 sample data... I don't have FFT or
DIFT functions in c too.. I found that using auto correlation it is
easy to calculate PSD value...

Please let me know if some one can provide information.

Thanks and Regrds,
Nisha