A method (300, 600, 800) of interference mitigation in a device (200,500,700) comprising a millimeter-wave radar, the method comprising: transmitting radar signals with the millimeter-wave radar; receiving (306, 608) reflected radar signals with the millimeter-wave radar, the reflected radar signals corresponding to the transmitted radar signals; generating (312, 612, 812) a first spectrogram based on the reflected radar signals; generating (314, 614, 814) 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 (200, 500, 700), and wherein the method (300, 600, 800) 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 (200, 500, 700) with an accelerometer; and generating (314, 814) a third spectrogram based on an output of the accelerometer, generating (318, 818) 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 (306, 608) reflected radar signals with the millimeter-wave radar, the reflected radar signals corresponding to the transmitted radar signals; generating (312, 612, 812) a first spectrogram based on the reflected radar signals; generating (314, 614, 814) 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 (200, 500, 700), and wherein the method (300, 600, 800) 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 (200, 500, 700) with an accelerometer; and generating (314, 814) a third spectrogram based on an output of the accelerometer, generating (318, 818) 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 (200, 500, 700) with an accelerometer; and generating (314, 814) a third spectrogram based on an output of the accelerometer, generating (318, 818) 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.