Systems and methods for estimating vehicle speed based on radar
AssigneeLyft, Inc.
InventorFarzad Cyrus Foroughi Abari
Life of this patent
Estimating the term…
Abstract
Systems, methods, and non-transitory computer-readable media can receive a frame of data generated by a radar system on a vehicle that is associated with an environment at a particular time as detected by the radar system. The frame of data can comprise a plurality of angular positions. Data points included within the frame of data that correspond to the plurality of angular positions can be determined. A fit of a curve having a trigonometric function can be determined to the data points. A speed estimate for the vehicle can be generated based at least in part on the fit of the curve to the data points.
Claims20
A computer-implemented method performed by a computing system, the computer-implemented method comprising:
- receiving a frame of data generated by a radar system on a vehicle that is associated with an environment at a particular time as detected by the radar system, the frame of data comprising a plurality of angular positions;
- determining data points included within the frame of data that correspond to the plurality of angular positions;
- determining a fit of a curve having a trigonometric function to the data points;
- and
- generating a speed estimate for the vehicle based at least in part on the fit of the curve to the data points.
A system comprising:
- at least one processor;
- and
- a memory storing instructions that, when executed by the at least one processor, cause the system to perform:
- receiving a frame of data generated by a radar system on a vehicle that is associated with an environment at a particular time as detected by the radar system, the frame of data comprising a plurality of angular positions;
- determining data points included within the frame of data that correspond to the plurality of angular positions;
- determining a fit of a curve having a trigonometric function to the data points;
- and
- generating a speed estimate for the vehicle based at least in part on the fit of the curve to the data points.
A non-transitory computer-readable storage medium including instructions that, when executed by at least one processor of a computing system, cause the computing system to perform a method comprising:
- receiving a frame of data generated by a radar system on a vehicle that is associated with an environment at a particular time as detected by the radar system, the frame of data comprising a plurality of angular positions;
- determining data points included within the frame of data that correspond to the plurality of angular positions;
- determining a fit of a curve having a trigonometric function to the data points;
- and
- generating a speed estimate for the vehicle based at least in part on the fit of the curve to the data points.
Dependencies are inferred from the claim text.