System and method of monitoring an air flow using a millimeter-wave radar sensor
AssigneeInfineon Technologies AG
InventorsAvik Santra, Jagjit Singh Bal
Life of this patent
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Abstract
In accordance with an embodiment, a method of monitoring an air flow includes performing a plurality of radar measurements using a millimeter-wave radar sensor with a line of sight having a component perpendicular to a direction of an air flow, detecting an object in the air flow based on the plurality of radar measurements, calculating a displacement of the object and a size of the object based on the plurality of radar measurements, estimating a velocity of the object based on the calculated displacement, and calculating a risk metric based on the calculated size of the object and estimated velocity of the object.
Claims27
A method of monitoring an air flow, the method comprising:
- performing a plurality of radar measurements using a millimeter-wave radar sensor with a line of sight having a component perpendicular to a direction of the air flow;
- detecting an object in the air flow based on the plurality of radar measurements;
- calculating a displacement of the object and a size of the object based on the plurality of radar measurements;
- estimating a velocity of the object based on the calculated displacement;
- and
- calculating a risk metric based on the calculated size of the object and estimated velocity of the object.
A method of monitoring an air flow, the method comprising:
- performing a plurality of radar measurements using a millimeter-wave radar sensor having a line of sight collinear to a direction of the air flow;
- detecting an object in the air flow based on the plurality of radar measurements;
- calculating a size and trajectory of the detected object based on the plurality of radar measurements;
- and
- calculating a risk metric based on the calculated size of the object and calculated trajectory of the object.
A method of monitoring a structural integrity of a rotating object, the method comprising:
- performing a plurality of radar measurements of the rotating object using a plurality millimeter-wave radar sensors;
- creating an inverse synthetic-aperture radar (ISAR) image from the plurality of radar measurements;
- extracting a micro-Doppler signature of the rotating object from the ISAR image;
- and
- estimating the structural integrity of the rotating object from the extracted micro-Doppler signature.
A system for monitoring an air flow, the system comprising:
- a millimeter-wave radar sensor having a line of sight having a component perpendicular to a direction of the air flow;
- a processor coupled to the millimeter-wave radar sensor, the processor configured to
- detect an object in the air flow based on radar measurements from the millimeter-wave radar sensor,
- calculate a displacement of the object and a size of the object based on the radar measurements,
- estimate a velocity of the object based on the calculated displacement;
- and
- calculate a risk metric based on the calculated size of the object and estimated velocity of the object.
Dependencies are inferred from the claim text.