Patent ID: 11860267
Assignee: AMBARELLA INTERNATIONAL LP
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. A method for interpolated virtual aperture array radar tracking, comprising:
at a radar transmitter, transmitting a first probe signal, the first probe signal having a first phase function;
at the radar transmitter, transmitting a second probe signal, the second probe signal having a second phase function;
at a set of physical receiver elements of a radar receiver, receiving a first set of signal instances, corresponding to a first reflected probe signal, in response to reflection of the first probe signal by a tracking target;
at the set of physical receiver elements, receiving a second set of signal instances, corresponding to a second reflected probe signal, in response to reflection of the second probe signal by the tracking target;
based on at least one of the first set of signal instances or the second set of signal instances, determining calculating a target range between the radar receiver and the tracking target;
based on interpolation of the first set of signal instances and the second set of signal instances, generating a third set of signal instances;
based on the target range, the first set of signal instances, the second set of signal instances, and the third set of signal instances, determining a position of the tracking target relative to the radar receiver, wherein
(i) determining the position comprises performing parallel field-of-view (FOV) detection,
(ii) performing the parallel FOV detection comprises:
selecting a first pair of signal instances and a second pair of signal instances from at least one of: the first set of signal instances, the second set of signal instances, or the third set of signal instances;
based on the first pair of signal instances, determining that the tracking target is not within a first FOV; and
based on the second pair of signal instances, determining that the tracking target is within a second FOV,

(iii) the first pair of signal instances is associated with the first FOV and the second pair of signal instances is associated with the second FOV, and
(iv) the second FOV is different from the first FOV.