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US 2025/0164606 A1Published application
High-resolution radar target signature smearing correction
AssigneeGM Cruise Holdings LLC
InventorDaniel Flores Tapia
Life of this patent
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AssigneeGM Cruise Holdings LLC
InventorDaniel Flores Tapia
Estimating the term…
A radar apparatus at a vehicle may transmit a set of radar energy that is reflected off an object after which the reflected radar energy may be received at the radar apparatus. When relative motion of a radar apparatus and an object include movement in two different directions, power of the reflected radar signals may be spread out in a manner that makes data associated with the reflected radar signals difficult to interpret. This spreading out of the radar signals can make mappings of the received radar data appear to be smeared or distorted. To compensate for this smearing effect, mappings of this smeared radar data may be compared with curves from which compensation factors may be identified. These compensation factors may allow a processor to perform calculations to generate updated mappings of the radar data that may allow the processor to more accurately identify characteristics of the object.
A non-transitory computer-readable storage medium having embodied thereon a program executable by a processor for implementing a method for evaluating received signals, the method comprising:
The non-transitory computer-readable storage medium of claim 11, wherein the first number of points corresponds to a number greater than one and the second number of points corresponds to the number one.
The non-transitory computer-readable storage medium of claim 11, the program is further executable to identify a signature to associate with the first mapping of the radar signals, wherein the first signature is associated with a first type of object.
The non-transitory computer-readable storage medium of claim 11, the program is further executable to identify associate the first mapping of the radar signals with a slope and a target offset of the first object.
The non-transitory computer-readable storage medium of claim 14, wherein the slope and the target offset corresponds to a phase and a magnitude of the received radar signals.
The non-transitory computer-readable storage medium of claim 11, the program is further executable to perform an inverse mapping of the received radar signals when generating a two-dimensional rendering of a location that corresponds to the distance associated with the first object.
The non-transitory computer-readable storage medium of claim 11, the program is further executable to identify to provide the second mapping such that a processor executing instructions associated with perceiving characteristics of the object.
The non-transitory computer-readable storage medium of claim 11, wherein the calculations are associated with an azimuth, an elevation, a range, and the velocity of the relative motion.
The method of claim 11, wherein the compensation factor includes a phase that results in radar energy of the points of the first mapping constructively adding.
Dependencies are inferred from the claim text.