HB100 doppler radar sensor. RF link communication.

Hi, I would like to build a radarduino with HB100.
I know that for calculate the distance from radar to target, i need to do the FFT (T Fourier) of th signal output of mixer.
if i use the hb 100 and arduino how can I do?

can i send the signal from mixer to arduino and from arduino to PC for to process the signal?

Example: