In device interference mitigation using sensor fusion
AssigneeInfineon Technologies AG
InventorsAvik Santra, Jagjit Singh Bal
Life of this patent
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Abstract
In an embodiment, a method of interference mitigation in a device that includes a millimeter-wave radar, includes 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; generating a compensated radar spectrogram based on the first and second spectrograms to compensate for an influence of the movement of the non-target object in the first spectrogram; and detecting a target or a property of the target based on the compensated radar spectrogram.
Claims25
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;
- measuring an output of an actuator with a sensor to generate a measured output;
- generating a second spectrogram indicative of movement of the actuator based on the measured output;
- generating a compensated radar spectrogram based on the first and second spectrograms to compensate for an influence of the movement of the actuator in the first spectrogram;
- and
- detecting a target or a property of the target based on the compensated radar spectrogram.
A device comprising:
- a millimeter-wave radar configured to transmit radar signals and receive reflected radar signals, wherein the reflected radar signals correspond to the transmitted radar signals;
- a sensor configured to measure an output of an actuator to generate a measured output;
- and
- a controller configured to:
- generate a first spectrogram based on the reflected radar signals;
- generate a second spectrogram indicative of movement of the actuator based on the measured output;
- generate a compensated radar spectrogram based on the first and second spectrograms to compensate for an influence of the movement of the actuator in the first spectrogram;
- and
- detect a target or a property of the target based on the compensated radar spectrogram.
A mobile device comprising:
- a millimeter-wave radar configured to transmit radar signals and receive reflected radar signals, wherein the reflected radar signals correspond to the transmitted radar signals;
- a speaker;
- a microphone configured to measure an output of the speaker to generate a measured output;
- an enclosure at least partially surrounding the millimeter-wave radar, the speaker and the microphone;
- and
- a controller configured to:
- generate a first spectrogram based on the reflected radar signals;
- generate a second spectrogram based on the measured output;
- generate a compensated radar spectrogram based on the first and second spectrograms to compensate for an influence of the movement of the speaker or the enclosure in the first spectrogram;
- and
- detect a target or a property of the target based on the compensated radar spectrogram.
Dependencies are inferred from the claim text.