Radar-based target tracker
AssigneeInfineon Technologies AG
InventorsSaiveena Kesaraju, Jagjit Singh Bal, Yue Sun
Life of this patent
Estimating the term…
Abstract
In an embodiment, a method includes: receiving a range-Doppler image (RDI) based on raw data from a radar sensor; performing moving target indication (MTI) filtering on the RDI to generate a first filtered radar image; performing constant false alarm rate (CFAR) detection on the first filtered radar image to generate a second filtered radar image; performing minimum variance distortionless response (MVDR) beamforming on the second filtered radar image to generate a range-angle image (RAI); performing CFAR detection on the RAI to generate a third filtered radar image; generating a point set based on the third filtered radar image; clustering targets of the point set; and tracking at least one of the clustered targets using a Kalman filter.
Claims23
A method comprising:
- receiving a range-Doppler image (RDI) based on raw data from a radar sensor;
- performing moving target indication (MTI) filtering on the RDI to generate a first filtered radar image;
- performing constant false alarm rate (CFAR) detection on the first filtered radar image to generate a second filtered radar image;
- performing minimum variance distortionless response (MVDR) beamforming on the second filtered radar image to generate a range-angle image (RAI);
- performing CFAR detection on the RAI to generate a third filtered radar image;
- generating a point set based on the third filtered radar image;
- clustering targets of the point set;
- and
- tracking at least one of the clustered targets using a Kalman filter.
A millimeter-wave radar system comprising:
- a millimeter-wave radar sensor configured to transmit radar signals and receive reflected radar signals;
- and
- a processing system configured to:
- generate a range-Doppler image (RDI) based on the reflected radar signals,
- perform moving target indication (MTI) filtering on the RDI to generate a first filtered radar image,
- perform constant false alarm rate (CFAR) detection on the first filtered radar image to generate a second filtered radar image,
- perform minimum variance distortionless response (MVDR) beamforming on the second filtered radar image to generate a range-angle image (RAI),
- perform CFAR detection on the RAI to generate a third filtered radar image,
- generate a point set based on the third filtered radar image,
- cluster targets of the point set, and
- track at least one of the clustered targets using a Kalman filter.
A device comprising:
- a millimeter-wave radar sensor configured to transmit radar signals and receive reflected radar signals;
- a communication device comprising a transmitter configured to radiate power with a first intensity;
- and
- a processing system configured to:
- generate a range-Doppler image (RDI) based on the reflected radar signals,
- perform moving target indication (MTI) filtering on the RDI to generate a first filtered radar image,
- perform constant false alarm rate (CFAR) detection on the first filtered radar image to generate a second filtered radar image,
- perform minimum variance distortionless response (MVDR) beamforming on the second filtered radar image to generate a range-angle image (RAI),
- perform CFAR detection on the RAI to generate a third filtered radar image,
- generate a point set based on the third filtered radar image,
- cluster targets of the point set,
- track at least one of the clustered targets, and
- when a first target of the tracked clustered targets is detected within a predetermined distance from the transmitter of the communication device, cause a reduction of the radiated power from the first intensity to a second intensity lower than the first intensity.
Dependencies are inferred from the claim text.