== What is Time domain signal Basic radar Theory ==
The You can check chapter 9 of the user manual to get more in detail about radar theory. Basically, a radar with linear frequency modulation follow the next equation: <br>'''hzpm =2*BW/(V*T)'''<br><br>This equation gives the relation between the target distance and its corresponding IF frequency (hzpm) where: '''hzpm''': "Herz per meter" is the ratio between IF signal frequency (in Herz) and target distance from radar (in meters) '''BW''': RF output frequency bandwidth in Hz<br>'''V''': media electromagnetic wave propagation speed (3*108m/s by default).<br>'''T''': FM linear Modulation sweep time domain signal window shows in seconds. In our example, as the default modulation has the next paramenters: BW=250MHz T=1,311ms V=3*108m/s<br>the 2048 samples captured of resulting hzpm is 1271Hz/m So, if the measured IF radar signal on frequency is 4,609KHz it means the last measurementtarget is at a distance of 3,6m from the radar. Y axis represents Considering the radar has an offset of about 0,35m (we will see later why) thedistance is 3,25m<br><br><br>