Abstract: A testing device for FMCW radar includes an input for receiving a chirp signal generated by the radar. An IQ down-converter coupled to the input down-converts the chirp signal. A digitizer extracts digitized IQ signals from the down-converted chirp signal. A processor coupled to the digitizer determines at least one of frequency linearity and phase noise of the chirp signal.

Abstract: A testing device for FMCW radar includes an input for receiving a chirp signal generated by the radar. An IQ down-converter coupled to the input down-converts the chirp signal. A digitizer extracts digitized IQ signals from the down-converted chirp signal. A processor coupled to the digitizer determines at least one of frequency linearity and phase noise of the chirp signal.

Abstract: According to an aspect of the present disclosure, a baseband signal and a pilot signal are combined for a transmission. The combined signal is then translated to higher frequency band by mixing a local oscillator signal and the combined signal. On the receiver, the pilot signal is used to remove the phase noise in the baseband signal, as both baseband signal and the pilot signal are affected/modified by substantially the same phase noise. In one embodiment, the pilot signal may be selected either centered outside the bandwidth of the base band signal or centered inside the bandwidth of the base band signal with enough guard band around it so that it can be filtered out using filters. The pilot signal is used in a similar fashion to eliminate the effect of the phase noise introduced by the local oscillator present in the tester in testing the receiver device.