Radar system and method with saturation detection and reset

A radar device comprising:

• at least one transmitter unit, the at least one transmitter unit configured to transmit a radar signal, wherein the radar signal is a frequency-modulated continuous-wave (FMCW) signal modulated with frame periods and inter-frame periods;
• at least one receiver unit, the at least one receiver unit configured to receive a reflection of the radar signal, the at least one receiver unit including at least one filter unit configured to filter the received radar signal and at least one amplifier unit configured to amplify the received radar signal;
• a saturation detector coupled to the at least one filter unit and configured to detect a saturation event in the at least one amplifier unit and assert a saturation detection signal in response to the detected saturation event;
• and
• a reset mechanism configured to receive the saturation detection signal and a frequency modulation control signal, the frequency modulation control signal indicating a start of a next inter-frame period, the reset mechanism configured to reset the at least one filter unit a delay period after the indicated start of the next inter-frame period in response to the saturation detection signal being asserted in a current frame period.

A method of operating a radar device comprising:

• receiving a reflection of a radar signal at a receiver unit, the receiver unit including at least one filter unit configured to filter the received radar signal and at least one amplifier unit configured to amplify the received radar signal;
• detecting a saturation event in the at least one amplifier unit;
• and
• resetting the at least one filter unit of the receiver unit in response to a detected saturation event.