A method of interference mitigation in a device comprising a millimeter-wave radar, the method comprising: transmitting radar signals with the millimeter-wave radar; receiving reflected radar signals with the millimeter-wave radar, the reflected radar signals corresponding to the transmitted radar signals; generating a first spectrogram based on the reflected radar signals; generating a second spectrogram indicative of movement of a non-target object; wherein the non-target object comprises an actuator , wherein the actuator comprises a speaker, wherein an output of the actuator comprises sound waves , wherein the non-target object comprises an enclosure of the device , and wherein the method further comprises: measuring the output of the actuator with a microphone to generate a measured output, wherein the second spectrogram is based on the measured output; measuring vibrations of the enclosure of the device with an accelerometer ; and generating a third spectrogram based on an output of the accelerometer , generating a compensated radar spectrogram based on the first, second and third spectrograms to compensate for an influence of the movement of the non-target object and of the actuator in the first spectrogram, wherein generating the compensated radar spectrogram comprises subtracting the second and third spectrograms from the first spectrogram; and detecting a target or a property of the target based on the compensated radar spectrogram. transmitting radar signals with the millimeter-wave radar; receiving reflected radar signals with the millimeter-wave radar, the reflected radar signals corresponding to the transmitted radar signals; generating a first spectrogram based on the reflected radar signals; generating a second spectrogram indicative of movement of a non-target object; wherein the non-target object comprises an actuator , wherein the actuator comprises a speaker, wherein an output of the actuator comprises sound waves , wherein the non-target object comprises an enclosure of the device , and wherein the method further comprises: measuring the output of the actuator with a microphone to generate a measured output, wherein the second spectrogram is based on the measured output; measuring vibrations of the enclosure of the device with an accelerometer ; and generating a third spectrogram based on an output of the accelerometer , generating a compensated radar spectrogram based on the first, second and third spectrograms to compensate for an influence of the movement of the non-target object and of the actuator in the first spectrogram, wherein generating the compensated radar spectrogram comprises subtracting the second and third spectrograms from the first spectrogram; and detecting a target or a property of the target based on the compensated radar spectrogram. measuring the output of the actuator with a microphone to generate a measured output, wherein the second spectrogram is based on the measured output; measuring vibrations of the enclosure of the device with an accelerometer ; and generating a third spectrogram based on an output of the accelerometer , generating a compensated radar spectrogram based on the first, second and third spectrograms to compensate for an influence of the movement of the non-target object and of the actuator in the first spectrogram, wherein generating the compensated radar spectrogram comprises subtracting the second and third spectrograms from the first spectrogram; and detecting a target or a property of the target based on the compensated radar spectrogram. <EOS>