Patent attributes
Embodiments are provided for a radar device and a method of operating a radar device, the radar device having a transmitter and a receiver, the method including: generating a chirp signal based on a local oscillator (LO) signal, wherein the LO signal is a frequency-modulated continuous-wave (FMCW) signal; secondary modulating the chirp signal to produce an output signal; transmitting the output signal on a transmitting antenna of the radar device; receiving an echo signal on a receiving antenna of the radar device; downmixing an amplified version of the echo signal with the LO signal to produce a low frequency signal; and outputting an error detection signal based on spectral components of the low frequency signal, wherein the spectral components correspond to the secondary modulating.
