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Altera_Forum's avatar
Altera_Forum
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12 years ago

How to find magnitude of source_real and source_imag after FFT in VERILOG code?

Hi, i want to find the peaks after FFT, and i need to find the magnitudes of source_real and source_imag in order to find the peaks... how to achieve this?
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
12 years ago

--- Quote Start ---

mag = square root(re^2+im^2).

if too much resource is needed then use cordic algorithm.

--- Quote End ---

of course i know the equation for the magnitude... but it's impossible to write like that in Verilog code right?