Doppler Velocity from I&Q channel
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I am new to this field and struggling to find doppler velocity from pure Doppler RADAR. I have I&Q channel, which I beleive is used to find doppler velocity by finding their phase difference ? Any sort of help would be much appreciated
If you are using a pure CW system, you cannot derive the range information. In that case you just mix the received signal with the transmitted signal, like what is done for range in the FMCW radar example. However, this time all frequency shifts are caused by Doppler shift. So just as shown in the FMCW radar example, once you get the beat frequency, that is your Doppler shift and you can then translate that to speed.